General Knowledge of Seamless Steel Pipe

1.Seamless steel pipe is a long steel with hollow sections and has no joints surrounding the steel bar. It is mainly used as a pipeline to transfer the fluid, such as oil,natural gas,water and some solid materials,etc. As compared to the flexural torsional strength in the same light, it is an economic cross-section steel. The seamless steel pipes are widely used in the manufactures  and mechniacal parts,such as the oil pipe, automotive transmission shaft,bicycles aircraft,as well as buliding construction. With steel pipe manufacturing, annular parts can improve the material utilization, simplify the manufacturing process, save material and machining time. For example, the roller bearing rings and the jack sets and so on have been widely made of steel pipes. Cylindrical rube can delivery more fluid since the circle has the largest areas under the same circumference. In addition, the ring cross-section bears internal or external pressure, the force more evenly, so that vast majority of tubular steel pipes are cylindrical rubes . However, the tube also has some limitations, such as in-plane bending conditions, the pipe on the better side, rectangular tube bending strength, and a number of sets of frames, steel-wood furniture on the commonly used square, rectangular tube.

2.The pressure of seamless steel pipe

Pressure pipelines are generally composed of pieces of standard parts, so the pressure pipe design component is the selection of its standard parts. the pressure level of pipelines is determined to the pressure level of its standard parts.

Pipeline pressure level consists of two parts:

one is nominal pressure rating which is expressed in the nominal pressure of the standard parts. The other is wall thickness rating which is expressed in the wall thickness of the stand parts.

The pressure grade of the pipes:

The parameters of channels characteristics which are determined by the nominal pressure level and wall thickness are called the pressure grade of the pipes.
the determine of the pressure  grades is not only the basis for pipeline design, but also the core of design. It is the basis of the arrangement of pressure pipe, and pressure pipe stress precondition for checking the design. and it is also an important factor which will affect investment and reliability.

Seamless Steel Pipe

Types and Properties of OCTG Pipe

OCTG stands for Oil Country Tubular Goods and covers several types of pipes and tubes that meet the standards of the American Petroleum Institute (API). OCTG covers three types of seamless tubes that have been quenched and tempered. OCTG drill pipe is heavy, seamless tubing that is used in drill strings for rotating the drill bit and circulating the drilling fluid. Normally 30 feet long, OCTG drill pipe is coupled with tool joints. OCTG casing pipe is pipe used to line the drill hole, and OCTG tubing transports the oil or gas that's produced in the wellbore. OCTG tubing is also around 30 feet long and comes with thread connections on either end.

OCTG Low Alloy Grade Specifications

Low allow steel grades used in OCTG pipe are traditionally carbon-manganese steels, or alloys with up to 0.4% molybdenum. However, in recent years, contaminants in drilling reservoirs and deep drilling applications have increased the demand for OCTG products that are more resistant to sulfide stress cracking and hydrogen embrittlement. For these applications, highly-tempered martensite has been found to be most resistant to sulfide stress cracking. Highly-tempered martensite with molybdenum concentrations of 0.75% offer the best combination of sulfide stress cracking resistance and high yield strength. When even higher yield strengths are needed, the addition of niobium offers yield strengths of up to 140 kilo-pounds per square inch.

OCTG Stainless Steel Specifications

Stainless steel API grades are standardized with 9% chromium plus 1% molybdenum or 13% chromium with no molybdenum. High temperature environments with carbon dioxide and hydrogen sulfide demand improved resistance to corrosion and sulfide stress cracking. Niobium and molybdenum improve corrosion resistance, with molybdenum improving pitting corrosion resistance, thus eliminating areas where sulfide stress cracking can get a foothold.


Mechanical Properties of OCTG Products

OCTG products meeting API 5CT or 5D specifications fall into 16 grades based on minimum yield strength, maximum yield strength, maximum tensile strength, and estimated Rockwell C hardness. For example, grade H-40 has minimum tensile strength of 60,000 psi, minimum yield strength of 40,000 psi, maximum yield strength of 80,000 psi, and estimated hardness of 70 to 87 on the "B" hardness scale, or HRB. At the other end of the scale, Grade S has minimum tensile strength of 145,000 psi, minimum yield strength of 135,000 psi, maximum yield strength of 165,000 psi, and estimated hardness of 32 to 39 (HRB).

Inspection Classifications of OCTG Products

Inspection classifications for new tubing and plain end drill pipe are designated by different colors of banding. White Band products are suitable for all inspections performed, while Yellow Band products are considered repairable rejects. With Yellow Band products, the bands are located on either side of the defect. Blue Band products have imperfections whose depth is undetermined. Red Band items must have body wall defects cut out of the tube for it to be usable. Damaged ends are marked with red bands, and drift restrictions are also designated by red bands located on either side of the restriction.

Your OCTG supplier should be conversant in the various grades and classifications of OCTG piping and tubing so you can be confident you get the exact products your project requires.

Tubing and Casing

Formation Integrity Test (FIT)

Formation Integrity Test (FIT) is the method to test strength of formation and a casing shoe by increasing Bottom Hole Pressure (BHP) to designed pressure. FIT is normally conducted to ensure that formation below the casing show will not be broken while drilling the next section with higher bottom hole pressure. Normally, drilling engineers in town will design how much formation integrity test pressure required and a unit of FIT is normally in pound per gallon unit.

How to Calculate Pressure Required for Formation Integrity Test.

Before forming formation integrity test, you should know pressure required for Formation Integrity Test. The formula showed below demonstrates you how to calculate required FIT pressure.

Pressure required for FIT (psi) = (Required FIT in ppg - Current Mud Weight in ppg) x 0.052 x True Vertical Depth of shoe in feet

Example below demonstrates how to use the formula to calculate pressure required for the test:

Required FIT (ppg) = 14.5


Current mud weight (ppg) = 9.2

True Vertical Depth of shoe (ft) = 4000 TVD

Pressure required for FIT = (14.5-9.2) x 0.052 x 4000 = 1102 psi

Note: The acronyms are listed below;

psi = pound per square inch

ppg = pound per gallon

ft = feet

Formation Integrity Test (FIT) procedures are as follows;

1. Drill out new formation few feet, circulate bottom up and collect formation samples to confirm that new formation is drilled to and then pull a drill string into the casing shoe.

2. Close annular preventer or pipe rams, line up a cement pump, and circulate through an opened choke line to ensure that surface line is fully filled with drilling fluid.

3. Stop the pump and close a choke valve.

4. Gradually pump small amount of drilling fluid into a well with constant pump strokes and recommended pump strokes are 5 to 10 strokes per minute. Record total pump strokes, drill pipe pressure and casing pressure. Pump until casing pressure reaches the pressure required for formation integrity test. Stop pumping and hold pressure for few minutes to confirm pressure stability.

5. Bleed off pressure and open up the well. Then start drilling operation.

Drill Pipes

Steel Pipes manufacturing process

Steel pipes are long hollow tubes that are used for a variety of purposes. They are produced by two distinct methods, which result in either a welded or seamless pipe. In both methods, raw steel is first cast into a more workable starting form. It is then made into a pipe, by stretching the steel out into a seamless tube, or forcing the edges together & sealing them with a weld.

Welded pipes could be manufactured by one of the process, know as Electric Resistance Welding (ERW), where in a high frequency current is being used to fuse the steel together, resulting in welding at the seam of the pipe.

Worldwide, ERW pipes are manufactured & distributed, looking at the various applications, various people are into manufacturing of steel pipes & tubes, following various Indian & International standards.

In India many organization, are engaged into manufacturing & exporting of Quality ERW Pipes. They manufactures different types of ERW Pipes namely Black Pipes, Hot Dip Galvanized Pipes, Conduit Pipes, Casing Pipes, Scaffolding Pipes & General Engineering Purpose Pipes.

These companies have huge production capacities, & holds certification of various Indian as well as International standards.


Maintaining the quality of the ERW pipes is of utmost importance too. The product must pass through stringent quality tests, before they are finally supplied. Raw Material shall be tested for Chemical Composition, Tensile Strength, Elongation and Thickness & Tolerance. Pipes shall be hydraulically tested to ensure no leakage in the pipe. Galvanized pipes must be tested for uniformity of the zinc coating.

As the quality is the lifeline of any industry, so at Steel pipes manufacturing companies, Quality is not only checked, but is monitored & produced, with the help of proactive & professional approach.

Steel Pipes finds various applications in Commercial, Industrial, Residential & Agricultural areas. These pipes are used in Staircase Hand railings, Door Frames, Oil & Gas Industry, Structural & Scaffolding purposes, Green Houses, Shed for ware houses, Sanitary use of households, Sewage, Construction activities, Hand Pumps, Tube Wells, Boring, Water Distribution System & several other applications.

Diversified form of steel is yet to come, which will change the face of all economies, with easy applicability adaptability, affordability, viability & stability.

Product Description
1. Commodity Name: Carbon Seamless steel pipe
2. Standard: API,GB,ASTM,ASME,DIN
3. Quality grade:  10#, 20#, A106B, A53B, API 5L B, Q235, Q345, ST37-2, ST 45, ST52.etc.
4. Dimension:
OD: 1/2"-32"
WT: 2.5-52mm, SCH10~SCH40~XXL
length: 5.8m,6m,12m,SRL,DRL
5. Technique: Hot Rolled/Cold Rolled/ Cold Drawn
6. application
carbon seamless steel pipes are widely used in gas, water and oil, transpotation;constructions;Bridge,highway,windows of model steel door; building materials;fences;heating facilities Fluid Pipe;conduit pipe,scaffolding pipe.etc.

Seamless Steel Pipe

Earthing Pipes - Uses and Features

What is Earthing?

Earthing can be defined as a connection of " exposed conductive parts" of an electrical circuit to earth in order to protect a user from shock or electrocution. It is carried out by connecting the chassis of the electrical equipment with an earth pin on the main power outlet and then joining the wiring of the building to an electrically solid earth point. The earth point is generally a copper pipe or a stake which is buried deep into the ground.

Earthing, also known as Grounding, can be divided into two main categories that are Conventional Earthing and Maintenance Free Earthing. Conventional Earthing can be done using GI Plates, Copper Earthing Pipes, Copper Plates and Cast Iron Plates. Whereas Maintenance Free Earthing is ready made, standardized, scientifically developed, easy to install and has a longer life.

Earthing Pipes

Pipe earthing is the best form of earthing which is highly cost effective. In Pipe Earthing, a galvanized iron, copper or copper plated steel pipe (of approved length & diameter) is buried vertically in the earth to which all electrical equipments of an establishment, office or industry are connected by wires. To reduce the resistivity & moisture content of soil, the pit where the Earthing Pipe is placed is filled with salt & charcoal in appropriate proportion.

Earthing Pipes are generally used in places where bedrock is beyond a depth of 3 meters (10 feet). The main purposes of the Pipe Earthing System are over voltage protection, voltage stabilization and to facilitate the operation of over current devices. Pipe Earthing provides protection from electrical shock in case of insulation damage in an electrical equipment. These pipes are used in critical earthing operations in Domestic Sector, Commercial Complexes and in various power transmission, electrical and electronic applications. These pipes are resistant to environmental conditions and offer low electrical resistance which is required for a good earthing system.

Copper-clad steel pipes are most preferred for earthing as steel core provides strength to withstand the driving force and the copper provides resistance against corrosion. Innovative designed as per the latest domain standards & norms, these Earthing Pipes are available in different shapes, sizes and dimensions as per the application requirement.

Outstanding Features:

    Rugged construction
    Durable finish standards
    Precise dimensions
    Hassle free performance
    Rust proof
    Resistance against corrosion & wear
    Low maintenance

1. Standard
ASME SA-106, ASME SA-192M, ASME SA-209M, ASME SA-210M, ASME SA-213M, ASME SA-335M, ASME SA-179M
ASTM A 106M, ASTM A 192M, ASTM A 210M, ASTM A 213M
EN 10216-2
DIN 17175
JIS G3456, JIS G3461, GIS G 3462
2.Uses
For manufacture waill panel, economizer, reheater superheater and steam pipeline of boilers
3.Available Dimension Range:
Cold Finished Seamless Tube and Pipe: 8~114.3*1~20mm
Hot-rolled Steel Tube and Pipe: 114.3~720*5~120mm

Boiler Tube

Types Of Plastic Pipes And Their Uses

With the high price of plumbers it is understandable that so many people are now deciding that the do it yourself route is a far more affordable option. Plastic pipe is the perfect material for the job as even the lay man can manage to put together a piping system. Naturally plastic pipe is an umbrella term that covers a number of different plastics, usually of the thermo variety but still disparate enough to note the differences. Here are some of the most popular plastic pipe variants used.

PVC or polyvinyl chloride is an extremely popular plastic in the piping world; it is extremely rigid and is adept at resisting many chemicals. The main form of welding is though solvents and is predominantly used for applications such as sewers, drain pipes and cold water pressurised water piping. It comes in a variety of different colours.

ABS or acrylonitrile butadiene styrene is used for many of the same purposes as PVC although its chemical resistance is lower and it is normally produced with a black colouration.

CPVC or chlorinated polyvinyl chloride is like PVC but stands up to high temperatures more effectively and hence is used for hot and cold water supply applications.

The previous three plastic pipe variants are all rigid whereas PB (polybutylene) and PE (polyethylene) are flexible; the former being rigid and used for the same purposes as CPVC and the latter being low cost. Both of these types are not joined with solvents but are instead formed with mechanical and clamped couplings.

In terms of buying the pipe for your plumbing needs pipes normally come in sizes along two lines, these being pipe sizes and tubing sizes. Pipe sizes relate to the old steel pipes while tube sizes relate to copper tube. It is important to note that different plastic pipes should not be connected together, like for like connections are always advisable. Because the plastic pipe industry moves quickly it is important to recognise that building regulations should always be consulted before undertaking any work.

For instance regulations permit the use of CPVC and PB pipe for hot water applications. These two pipes are perfect for constructing in-home hot water systems as they are corrosion free and durable. It should be remembered however that this form of pipe should not be used for electrical grounding as it is non-conductive. PVC pressure pipes should predominantly be used for cold water movement in outdoor areas; such as water sprinkling systems in gardens. PE pipe is similar although it is flexible rather than rigid, and is perfectly suited to deep piping well purposes.

There are two major methods of fitting piping systems together; these are solvent welding and mechanical coupling. Solvent welding is simple enough although care should be taken to carry out the task effectively to prevent any leaks. The pipe must be cut squarely, cleaned thoroughly, coated with solvent and then joined with the fitting piece. It should be remembered however that cuts are final, there is no way back should you cut the pipe too short. Mechanical coupling however is used with plastic pipes that cannot be welded with solvents. Normally it requires a simple click into place as the fittings have barbs and clamps that prevent leaking.

Hopefully this information has given an idea on the types of plastic pipe out their and their uses. Additionally it is also hoped that the information on fitting will give DIY enthusiasts the knowledge that is needed to construct their own plumbing systems.

Spiral welded pipe is a strip coil as raw material, often warn extrusion molding, to automatically double-wire submerged arc welding process double-sided spiral welded pipe joints.

SAWH pipe are mainly used in water supply engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation and urban construction, and is one of 20 developing key products of our country.
Used for liquid delivery, such as water supply, drainage and oil.
Used for gas delivery, such as gas, vapour, liquefied petroleum gas and natural gas.
Used for structures, such as piling, birdge, wharf, road and tube for building structures, etc.

SSAW Carbon Steel Pipe

The wide spread uses and diverse application of Steel pipes

Steel as we all know is the most important factor of any industry. Whether it is construction company or a firm producing electrical equipment, without stainless pipes and tubes, the industry cannot thrive. The quality of the steel pipes is instrumental in enhancing the nature of construction and any product which is produced in the factory. Steel pipes find applications in most of the equipment and the machineries that are used in most of the manufacturing and construction industry. The quality of the steel which are used in making these pipes utilise the most advance technology and good quality raw materials so that the end products are of great quality.

Quality of the stainless steel pipes and its importance

There are many factors which need to be considered when it comes to ensuring the quality of the steel pipes. Steel comes in many variants and slight changes in the composition of the steel renders a different quality of the steel. For instance, duplex steel is a variant of steel which has special qualities and is less heavy than steel. Steel pipes quality is an important factor, especially in the construction industry, which largely relies on the steel reinforcement. It is therefore important that the steel that is used in this industry must be of high quality and is manufactured using the most advance technology and best quality raw materials. The users who buy steel pipes must be cautious about the quality of the steel and must procure it from the manufacturers of good repute. There are many trusted steel pipe manufacturers in the country who deal in good quality steel pipes and cater to the requirements of all types of customers. There are many new variants of steel which have been produced in recent times. Some of these steel has added properties which make them even stronger than the steel. The steel pipes made of this material are lighter in weight and less expensive than normal steel. Their degree of tolerance of heat, pressure and other adverse effects of weather. The features of this type of steel pipes are more strength, resistance to stress corrosion, lower and more stable price in the market as compared to the steel. Hence, if you are interested in buying steel pipes and tubes, make sure that you are choosing the one with the guarantee of the best quality which comes with years of expertise and ability to innovate the process of steel pipe manufacturing.

Specifications
1 . API ERW steel pipe
2.  API PSL1 /PSL2
3.  Outer diameter : 21.3-610mm
4.  wall thickness : 1.8-22mm

ERW Steel Pipes

Preventing Frozen Pipes and Burst Lines

Ice formation can occur any place within a length of pipe. Experts say that what causes potential bursting problems is that after the ice blockage, the pipe continues to freeze and expand and cause the downstream water pressure between the ice blockage and the closed faucet to increase.

When and where are your Pipes at Risk?

How vulnerable your pipes are to freezing depends on where they are located in your home.

In northern climates, pipes are located inside insulated walls to prevent freezing in cold weather, but if there are holes in the building or the temperatures are extremely cold, pipes are still at risk.
In southern climates, pipes are located outside and may freeze once or twice a year in cold temperatures.
Pipes located in attics,  crawlspaces, and outside walls are more subject to freezing.
Even small breaks in the wall, such as where TV or telephone lines enter the home, can provide enough of an entryway for cold air to gain access to pipes.
For pipes that have no insulation, frozen pipes are a threat when the outside temperature falls below 32°F.

How can you Prevent Frozen Pipes?

What can you do to prevent freezing? Plumbers offer several suggestions, with the caveat that pipes may still freeze even if you take precautions.

Install insulation and electric heat tape on the pipes prior to winter. Even if the pipes freeze in extreme temperatures, the heat will gradually thaw the pipe.
Seal gaps around the home around dryer vents, windows, cable entry points, etc.
When the temperatures are expected to dip, leave a small trickle of hot and cold water running to relieve pressure. If the dripping stops, still keep the faucets open.
Keep your house warm.
What to do if your Pipes Freeze

If pipes do freeze, it is important to thaw them out and prevent bursting. Make sure that your faucets are open and try these remedies:

Shut off the water supply to the whole house or at least in the section of the home near the frozen pipe.
Wrap the pipe in burlap or towels and pour hot water over the fabric several times until the pipe thaws.
Direct a heat lamp, hairdryer, or space heater toward the frozen area and move. Make sure to plug the appliance into a Ground Fault Circuit Interrupter (GFCI) outlet and aim it toward the pipe from at least a foot away.
When to Call a Licensed Plumber

When your pipes freeze, you can call a plumber to unthaw them, but this is a more costly solution. While a plumber will come out and do the job, your dollars are best spent on engaging a professional plumber before cold weather sets in to insulate your pipes, check for places where cold air can come in, and install heat tape. In some cases, he or she may even relocate the pipes to reduce freezing chances.

If your pipes burst, you will need a plumber to repair damaged lines, but the best cure for frozen pipes and burst lines is prevention.

Various steel pipe external coating projects are currently implemented by our company including single-layer/ double layer FEB, 2PE, 3PE, 3PP and other anti-corrosion coatings with the performed standards such as DIN 30670, DIN 30671, DIN 30678, CAN/CSA-Z245.21-M92, SY-/T4013-2002,SY/T0315-97 etc.

Anti-corrosion Pipes

Firetube Boilers and Watertube Boilers

Firetube Boilers: Firetube boilers are also know as shell boilers. These boilers are the most commonly used boilers in the market. In the firetube or shell boilers the water is surrounded by the water. The water which surrounds the shell or firetube is heated by sending the hot gases or fire which is produced by the burner through the shell or firetube. The hot gases or fires are allowed four times through the tubes in the boiler before letting the out of the boilers. These tubes are generally set at the banks of the boilers. The firetube boiler systems can release up to 25,000lbs or 750hp of steam per hour. About 80% of the boilers that are in use today belong to this particular category.

Watertube Boilers: In the Watertube Boilers the tubes are arranged vertically in the shell. Then the water is filled in the shell which is heated by sending the hot fuel or hot gases through the tubes. Generally Watertube boilers are built in rectangular shape with two or three drums. The drums are arranged at the top and bottom, where top drum is used to separate water and steam and the bottom drum is used to collect he sludge. Watertube boilers are usually utilized when more than 750hp of steam per hour is required.

The temperature generally rises up to 212 degree Fahrenheit when the fuels or hot gases released into the boiler from the burner which heats up the water. At this temperature the water converted to the steam. The steam generated is then circulated throughout the building or home using radiators, vents and pipes, specifically created for heat transferring.

To overcome the problems like overheat of the boilers, some of the heat is retained in the boiler to keeping the building or home warm needs. Since more steam is produced as the temperature increases, it is essential to check the boiler and ensure that excess pressure is not built. To check the pressure build up, run your boiler for short durations of time. Furthermore, they have to be maintained regularly to keep them in optimum working condition.

1. Standard
ASME SA-106, ASME SA-192M, ASME SA-209M, ASME SA-210M, ASME SA-213M, ASME SA-335M, ASME SA-179M
ASTM A 106M, ASTM A 192M, ASTM A 210M, ASTM A 213M
EN 10216-2
DIN 17175
JIS G3456, JIS G3461, GIS G 3462
2.Uses
For manufacture waill panel, economizer, reheater superheater and steam pipeline of boilers
3.Available Dimension Range:
Cold Finished Seamless Tube and Pipe: 8~114.3*1~20mm
Hot-rolled Steel Tube and Pipe: 114.3~720*5~120mm

Boiler Tube

Roughneck Jobs - What They Are, And What They Pay

Roughnecks made it to fame when the film Armageddon came out starring Bruce Willis and Ben Afleck. Basically the story is about how a handful of skilled oil and gas workers save the world from a falling asteroid. Roughnecks is a generic term for someone who works in the oil industry. There are different kinds of jobs in the industry and these are referred to as roughneck jobs.

Definitely the first question that pops into the mind is how much do roughnecks and oil workers make in a year in terms of salaries? As with any industry there are different levels of salaries depending on job function and the like. Different levels of difficulty will have different corresponding salary adjustments and pay scales. We can discuss the oil industry jobs and see the different kinds of jobs and earnings they have.

The least paid in the oil industry are galley hands and cooks. Cooks have the function of making sure everyone is fed on the many shifts that rotate in a day. They make around 35,000 to 42,000 dollars per year. The trainees, or galley hands as they are called, do a lot of general jobs and assisting workers. They too get around the same salary as the cook at 35,000 to 42,000 dollars per year.

More specialized than the galley hands are the roustabouts, who make around 45,000 dollars per year. They are in charge of assembling and repairing oil field equipment using power and hand tools. They also do other tasks as needed.

Earning 55,000 dollars a year, roughnecks are the ones who mostly operate drilling equipment with the drillers. They have a whole lot of other functions too when required, like driving a truck of heavy equipment for example. Roughnecks also serve long shifts on the field.

The second most important person in the drill crew is the derrickman who literally hangs out at the top of the derrick servicing the drill pipes and works closely with the driller. He makes around 62,000 dollars a year. The one in charge of the entire drill crew is the driller who makes sure working conditions are optimal and safe. The driller takes home around 85,000 dollars a year and is one of the most important people on the field.

The onsite supervisor of the location or an oil contractor supervisor is called the toolpusher. Mainly an administrative job that makes sure that logistic requirements are all met. The job nets around 115,000 dollars a year. Its his job to make sure that if something is needed by say the drill team, then it is his job to get whatever they have requested.

The one who is almost in complete control of the field and all its operations is the supervisor. Its his job to make sure production quotas are met and that everything flows smoothly from extraction to delivery. This hard job gives the supervisor around 200,000 to 300,000 per year. A lot of other jobs also exist in the oil industry, but judging from the numbers they should also be well paying.

Standard and technical conditions for supply

API SPEC 5DP

Uses:

For well drilling

Note:

1.EU-External Upset IEU-Internal-External Upset IU-Internal Upset

2.Threads of tool joins are left-hand or right-hand

3.Threads are cooper-plated or phosphated

Grade:

E75, X95, G105, S135

The wear-resistant belt of tool joint:

Arnco 100XT, 200XT, 300XT, 400XT

Internal Coating:

TK34, DPC, TC2000, TC3000

Drill Pipes

Working principle of a Boiler

Every household in the United Kingdom has a central heating boiler in their houses. But anyone of you has ever thought how does a central heating boiler work. Today I am going to explain how exactly the central heating system (boiler) works.

The water stored in the vessel when heated to a desired temperature level by burning natural gases, coal and wood pellets can be defined as a boiler. The steam produced by the boiler when heated is piped to a spot which can be is utilized for different purposes such has running the production units, sanitizing some area, sterilizing equipments, to warm up the surroundings, to heat up the water, and many more.

Burner is a heart of the boiler which converters water to steam. This burner is heated by supplying fuels into it. Generally the steam needed to heat your houses, buildings, hospital, office and other places where heat is required is created by the fuel that is burned and supplied to the boiler from the burner. The burner can be heated by using different fuels like natural gas, coal or wood pellets. If you’re using natural gases, then the natural gases are released into the burner through a special pipe which heats the burners. If you’re using any oil to heat the burner the then the oil is supplied to them which pressurizes and heats the burners. When it comes to wood pellets, the woods are burned using some fuel which helps to heat the burners.

After the burners are heated up using the required fuels, then the gases or the fire from the burners are directly released on the boiler to heat up the water. The water can be boiled in the boiler depending on the two types of boilers used in the market.

There are generally two types of boilers which use their own principles to produce heat.

1. Standard
ASME SA-106, ASME SA-192M, ASME SA-209M, ASME SA-210M, ASME SA-213M, ASME SA-335M, ASME SA-179M
ASTM A 106M, ASTM A 192M, ASTM A 210M, ASTM A 213M
EN 10216-2
DIN 17175
JIS G3456, JIS G3461, GIS G 3462
2.Uses
For manufacture waill panel, economizer, reheater superheater and steam pipeline of boilers
3.Available Dimension Range:
Cold Finished Seamless Tube and Pipe: 8~114.3*1~20mm
Hot-rolled Steel Tube and Pipe: 114.3~720*5~120mm

Boiler Tube

ERW Steel Pipes

Specifications

1 . API ERW steel pipe
2.  API PSL1 /PSL2
3.  Outer diameter : 21.3-610mm
4.  wall thickness : 1.8-22mm

Steel Grade:
BS:1387, EN10217:S185, S235,S235JR, S235 G2H, S275, S275JR, S355JRH, S355J2H, St12, St13, St14, St33, St37, St44, ST52
ASTM A 53: Gr. A, Gr B, Gr C, Gr.D
API 5L: A, B, X42, X46, X52, X56, X60, X65 X70
GB/T9711: L175, L210, L245, L290, L320, L360, L290, L320, L360, L390, L415, L450, L485, L555
GB/T3091, SY/T5037, SY/T 5040,CJ/T 3022:Q195, Q215, Q235, Q275, Q295, Q345, 08F, 08, 08AL, 08F, 10F, 10, HG5, DF08 SPHC, M8

ERW Steel Pipes

Seamless Steel Pipe

Seamless Pipe (API 5L /ASTM A106 )
Steel Grade :GRB, X42, X52, X56, X60, X70
Size : 1/2"-32"

Product Description
1. Commodity Name: Carbon Seamless steel pipe
2. Standard: API,GB,ASTM,ASME,DIN
3. Quality grade:  10#, 20#, A106B, A53B, API 5L B, Q235, Q345, ST37-2, ST 45, ST52.etc.
4. Dimension:
OD: 1/2"-32"
WT: 2.5-52mm, SCH10~SCH40~XXL
length: 5.8m,6m,12m,SRL,DRL
5. Technique: Hot Rolled/Cold Rolled/ Cold Drawn
6. application
carbon seamless steel pipes are widely used in gas, water and oil, transpotation;constructions;Bridge,highway,windows of model steel door; building materials;fences;heating facilities Fluid Pipe;conduit pipe,scaffolding pipe.etc.

Seamless Steel Pipe

Roughneck Jobs - The Timid Need Not Apply

The 1990s movie Armageddon starring Ben Afleck and Bruce Willis introduced the roughneck to the world on the big screen. The roughneck is someone who works or is employed in an oil field. Whether at land or sea in rigs, there are many kinds of roughneck jobs. Most of these jobs are lucrative and an attractive option for some. This is a short discussion on what kinds of jobs are available in the industry.

How much then can I make as a roughneck or you for that matter? In a year how much does an oil industry worker make? Of course this all depends on the position that one is entering in the industry as different levels and duties have different pay scales. This short discussion will look at some of the most common jobs in the oil industry and their respective remunerations.

Starting with the cooks who makes sure everyone is well nourished and fed throughout the entire 24 hours and the respective shifts, this position roughly pays 35,000 to 42,000 a year. This is roughly the same level as what galley hands make. Galle hands are basically the starters or trainees in the oil industry who will do more important jobs later on.

More skilled than the galley hand, roustabouts make about 45,000 dollars a year. Their job functions include repair of oil field equipment with both hand and power tools. They likewise are involved in the assembly of oil field equipment as well as doing other tasks assigned to them.

Mostly operating in and around the drill equipment, roughnecks earn around 55,000 dollars a year. Their functions do not stop there however as sometimes they do a bit of driving with the heavy equipment and other tasks that are needed in the operation. This job has one of the longer work shifts in the industry.

In charge of servicing the drill pipes while attached to an overhead derrick, the derrickman is the second most important person in a drill crew next to the driller. This position gives around 62,000 dollars a year. The driller is in charge of the whole drill crew and makes around 85,000 dollars a year. He makes sure that working conditions are safe and the drill crew works efficiently and smoothly.

Representing the oil contractor is a supervisor who is called a toolpusher. Sometimes the toolpusher is the local site supervisor for the company if there is no oil contractor. This is an administrative task that ensures that all equipment and necessities are provided in a timely and orderly fashion to the drill crews. This position brings in around 115,000 per year.

The supervisor is the one in charge of the entire field of operations. It is the responsibility of the supervisor that production quotas are met and there is no downtime. This very challenging job brings in around 200,000 to 300,000 per year for the field operations are critical. A variety of other jobs and functions exist within the oil industry, mostly paying handsomely just like the jobs and functions illustrated here.

Drill Pipes

Standard and technical conditions for supply

API SPEC 5DP

Uses:

For well drilling

Note:

1.EU-External Upset IEU-Internal-External Upset IU-Internal Upset

2.Threads of tool joins are left-hand or right-hand

3.Threads are cooper-plated or phosphated

Grade:

E75, X95, G105, S135

The wear-resistant belt of tool joint:

Arnco 100XT, 200XT, 300XT, 400XT

Internal Coating:

TK34, DPC, TC2000, TC3000

What Is The Difference Between 304 And 316 Stainless Steel Pipe

The main difference between 304 and 316 stainless steel pipe is that 316 contains 2%-3% molybdenum and 304 has no molybdenum. The "moly" is added to improve the corrosion resistance to chlorides (like sea water). So, while 316 stainless steel pipe is generally considered more corrosion resistant than 304, depending on the nature of the corrosive media the corrosion rates of 304 and 316 could be similar.

Generally, SS 304/304L is assumed to be corrosion-resistant material. But when we come to Piping Specs with SS 304/304L MOC, its value is taken as 0.063 inches -- same for SS316/316L . Please explain.

We have a plant that produces fertilizer. In one section we mix 40% phosphoric acid and 98% sulfuric acid together in a ratio of 75-80 : 25-20 phosphoric acid:sulfuric acid. After that the mixture is cooled to a temperature of 80 degrees C. What is the best material of construction for transfer piping? The existing material, 304 stainless steel pipe, shows problems at the welds.

From a materials of construction perspective, this is a tricky mixture to deal with, especially at 80 degrees C and higher. Phosphoric acid is less corrosive than sulfuric acid. Pure phosphoric acid has no oxidizing power but commercial phosphoric acid contains impurities such as fluorides and chlorides that can significantly increase its corrosivity. The corrosivity of sulfuric acid depends on many factors including temperature, concentration, the presence of oxidizing or reducing impurities, velocity effects, and solids in suspension.

It is usually not wise to select materials of construction for sulfuric acid handling equipment based only on published corrosion data since corrosion by sulfuric acid is a complex phenomenon. Small differences in impurities, velocity, or concentration can significantly impact the corrosion rate. Halides generally increase corrosion while aeration or the presence of oxidizing agents usually increases the corrosion rate of non-ferrous materials  and reduces the corrosion rates of stainless steel pipe alloys. I strongly recommend laboratory corrosion studies be run on your specific stream as a part of your material of construction selection process.


I have a large storage tank of 93% sulfuric acid. I am having excessive corrosion of the top of the 4-inch carbon steel outlet pipe. I am thinking of replacing the outlet pipe with Schedule 120 carbon steel pipe. Is there any more resistant material, insert, or coating you could recommend for increased life?

Carbon steels are only acceptable for 93% sulfuric acid when fluid velocity is low (< 3 ft/sec). For 4-inch diameter piping or less with velocities up to 5.9 ft/sec, 316L stainless steel pipe is a good choice. For velocities higher than 5.9 ft/sec, Alloy 20Cb-3 (UNS N08020) has been used successfully. For additional information, consult NACE Recommended Practice RP-0391 "Materials for the Handling and Storage of Commercial Concentrated (90 to 100%) Sulfuric Acid at Ambient Temperatures."

In your question, you said you are experiencing problems with 304 stainless steel pipe at the welds. If this is the case, you might consider moving to 304L stainless steel pipe. Low carbon versions of austenitic Stainless steel seamless pipe like 304L are designed to eliminate problems associated with carbide precipitation and chromium depletion at welds. If 304L doesn't work, try gradually moving up to a higher alloy. Possible candidate materials in order of generally increasing corrosion resistance are: 316L stainless steel pipe, 20-type alloys like 20Cb-3, higher chromium Fe-Ni-Mo alloys like Alloy 31, and nickel-base molybdenum-chromium alloys like C-276.

Various steel pipe external coating projects are currently implemented by our company including single-layer/ double layer FEB, 2PE, 3PE, 3PP and other anti-corrosion coatings with the performed standards such as DIN 30670, DIN 30671, DIN 30678, CAN/CSA-Z245.21-M92, SY-/T4013-2002,SY/T0315-97 etc.

Anti-corrosion Pipes

General Knowledge of Seamless Steel Pipe

1.Seamless steel pipe is a long steel with hollow sections and has no joints surrounding the steel bar. It is mainly used as a pipeline to transfer the fluid, such as oil,natural gas,water and some solid materials,etc. As compared to the flexural torsional strength in the same light, it is an economic cross-section steel. The seamless steel pipes are widely used in the manufactures  and mechniacal parts,such as the oil pipe, automotive transmission shaft,bicycles aircraft,as well as buliding construction. With steel pipe manufacturing, annular parts can improve the material utilization, simplify the manufacturing process, save material and machining time. For example, the roller bearing rings and the jack sets and so on have been widely made of steel pipes. Cylindrical rube can delivery more fluid since the circle has the largest areas under the same circumference. In addition, the ring cross-section bears internal or external pressure, the force more evenly, so that vast majority of tubular steel pipes are cylindrical rubes . However, the tube also has some limitations, such as in-plane bending conditions, the pipe on the better side, rectangular tube bending strength, and a number of sets of frames, steel-wood furniture on the commonly used square, rectangular tube.

2.The pressure of seamless steel pipe



Pressure pipelines are generally composed of pieces of standard parts, so the pressure pipe design component is the selection of its standard parts. the pressure level of pipelines is determined to the pressure level of its standard parts.

Pipeline pressure level consists of two parts:

one is nominal pressure rating which is expressed in the nominal pressure of the standard parts. The other is wall thickness rating which is expressed in the wall thickness of the stand parts.

The pressure grade of the pipes:

The parameters of channels characteristics which are determined by the nominal pressure level and wall thickness are called the pressure grade of the pipes.
the determine of the pressure  grades is not only the basis for pipeline design, but also the core of design. It is the basis of the arrangement of pressure pipe, and pressure pipe stress precondition for checking the design. and it is also an important factor which will affect investment and reliability.

Spiral welded pipe is a strip coil as raw material, often warn extrusion molding, to automatically double-wire submerged arc welding process double-sided spiral welded pipe joints.

Grade: Q235A, Q235B, Q345, L245(B), L290(X42), L320(X46), L360(X52), L390(X56), L415(X60), L450(X60), L485(X70), L555(X80), L290M(X42M), L360M(X52M), L390M(X56M), L415M(X60M), L450M(X65M), L485(X70M), L555(X80M)

SAWH pipe are mainly used in water supply engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation and urban construction, and is one of 20 developing key products of our country.
Used for liquid delivery, such as water supply, drainage and oil.
Used for gas delivery, such as gas, vapour, liquefied petroleum gas and natural gas.
Used for structures, such as piling, birdge, wharf, road and tube for building structures, etc.

SSAW Carbon Steel Pipe

Importance and Advantages of a Stainless Steel Seamless Pipe

Steel pipes are extremely popular amongst various industries. However, you will find wide application of stainless steel pipes in maximum industries because of its durability, look and most importantly because of its high resistance and anti-corrosive power. These rods or tubes are available in various types and forms depending on the welding and manufacturing process, the shape, length and so on. The tubes can come in hollow round structured, short and long forms, square and longitudinal shapes, and solid tubes and so on.

About seamless pipes

The word seamless means smooth with respect to structures. The stainless steel seamless pipe forms are highly popular in the market. The main difference between a seamless and welded pipe is that the joint is a part of welded products, while you will see no joints or welding in a seamless steel pipe. The seamless product is achieved by drawing together a solid quarter of steel against a piercing rod and form a hollow round shell. The seamless pipes are also known as the SMLS pipes.

Advantages of this product

Almost all of the industries prefer stainless steel seamless pipe products over the welded ones. There are various reasons for this popularity. The seamless look is definitely better than the welded look. However, more than the look, the smooth structure is known to offer better durability and resistance against pressure. No liquid is likely to sip in or sip out during the passage of the same. For this reason, a seamless steel pipe is considered to be a better product than the welded ones. It is also easy to keep the seamless pipes clean as compared to the ones with a welding.

Usage of these pipes

Since seamless pipes are highly durable, these are not only used in chemical and food industries, but also in various other constructions. These can be the likes of high rise formations, bridges and different types of structures or buildings. The stainless steel seamless pipe structures are known to be able to carry immense weight upon them. Thus, these are also used in various factories, heavy duty pipeline facilities and also to design pressure vehicles. Anti-corrosiveness along with high durability makes these products an ideal choice for most of the industries.

Seamless Steel Pipe

Product Description

1. Commodity Name: Carbon Seamless steel pipe

2. Standard: API,GB,ASTM,ASME,DIN

3. Quality grade:  10#, 20#, A106B, A53B, API 5L B, Q235, Q345, ST37-2, ST 45, ST52.etc.

4. Dimension: 

OD: 1/2"-32"

WT: 2.5-52mm, SCH10~SCH40~XXL

length: 5.8m,6m,12m,SRL,DRL

5. Technique: Hot Rolled/Cold Rolled/ Cold Drawn

6. application

carbon seamless steel pipes are widely used in gas, water and oil, transpotation;constructions;Bridge,highway,windows of model steel door; building materials;fences;heating facilities Fluid Pipe;conduit pipe,scaffolding pipe.etc.

Some of the diverse applications of Stainless steel seamless pipe

Stainless steel seamless pipes have become very common these days and are offered by almost all steel pipes manufacturers. The benefits such as higher corrosion resistance than carbon steel and conventional stainless steel and light –weightiness make the design and construction compact and light. Stainless steel is composed of copper, chromium, nickel, tungsten, manganese, etc. and is therefore rust resistant. Stainless steel seamless pipes can prove to be a cheaper alternative to the nickel alloys, which are very costly. Steel has higher strength which leads to reduced thicknesses of section and therefore has reduced weight. It also exhibits good weld ability in thick sections and the ability to be welded is more in stainless steel. Resistance to stress corrosion cracking: Austenitic steel is prone to such corrosions. The resistance posed by stainless steel to stress corrosion cracking makes this material fit for purposes like Hot water boilers, brewing tanks and desalination, structure of swimming pools, etc.

Some of the advantages of using steel seamless pipes in the industry

Increased strength leading to saving of weight.
It has  better stress corrosion resistance
Price is lower as compared to other alloys
These pipes can handle a lot of pressure and adverse weather condition.

Reasons for Wide spread applications of steel pipes

Steel was invented around 100 years ago. The importance of steel has risen by leaps and bounds due to various reasons and attributes of steel. Steel does not get rusted easily and is light-weight as compared to Iron. It is durable, ductile, malleable, corrosion resistant and fire-resistant among scores of other benefits. All these features of Steel have made it the king of raw materials used in almost every industry. Steel is mostly used as structural steel which is the most preferred framework material for residential as well as non-residential construction. The steel beams and columns are the skeleton of the building and support the entire construction just like the bones in a body do. Angle bars, I-Beams, H beams, IPE etc. are some of the other structural elements requited in the construction. It is therefore clear that steel is indispensable in industries. The specially processed steel like galvanised steel has made steel more versatile and fit for various purposes. Some of the commonly used steel products are steel sections, steel pipe, steel tube, steel coil, steel sheet and steel plate. The process of galvanisation increases the strength and durability of steel. Steel has several grades and steel prices vary accordingly. Other types of steel are:

Galvanised steel
Galvalume Steel
Prepainted Steel
Hot rolled steel
Cold rolled steel
Stainless steel pipe and tubes are some of the most common application of steel which are used in most industries as well as household. Steel pipes are used as curtain and drapery rods, plumbing pipes, parts of the mechanical equipments and various other uses.

LSAW Carbon Steel Pipe

1. Line Pipe

Grade: A, B, X4-X80, L210-L255

Outside Diameter: 406mm-1626mm(16"-64")

Wall Thickness:6.4mm-32mm

Length: 3.0-12.3m

Standard: API 5L, GB/T9711, EN10208, ISO3183 etc

2.Structural pipes and Low pressure liquid delivery pipes

Grade: Q215-345, Grade A-E, Grade 1-3 STK290-540, S275JRH, S275JOH, S275J2H, S355JRH, S355JOH, S355J2H

Outside Diameter: 350mm-2400mm

Wall Thickness: 6mm-80mm

Length: 2.0-12m

Standard: ASTM A139, ASTM A53, ASTM A500, ASTM 672, ASTM A252, EN10219, JIS G3444 etc.

Uses: Used as low pressure liquid delivery pipes, variety of structral parts by the force and pressure as well as other purpose

Convection Tubing

Overview

Convection tubing has been proven as an easy and inexpensive means of distributing heat or circulating air. The tubing helps create a better, healthier air mix, eliminates stale air pockets, cold and dry spots, and reduces humidity. In winter months the tubing can be used to direct heat to the area where it is most needed. The heat is dispersed evenly for a more comfortable environment. In hot weather, tubing reduces the temperature by continuous distribution of fresh air.

For greenhouse use, it is recommended you use tubing with an ulta violet inhibitor. Ultra violet tubing should be used where the sun is most intense, or wherever a longer lasting tube is desired.

Convection tubing can be used for ventilation of poultry barns, stock farm buildings, mushroom farms and industrial applications.

Versatility

Poly duct tubing is generally available in either a 4 or 6 mil thickness.

Single Line Punching

This is the most widely used system for heating and ventilation. Tubing can be punched to specialized needs to suit all known fan systems. There are many available hole sizes. Hole positioning can also be customized to direct the air flow where it is most needed.


Multi-Vent Punching

Multi-vent hole patterns create greater turbulence that increases air flow. There are no more vent holes than single-line punching but they are positiont to permit greater velocity and turbulence of air mix.  This type of punching results in a better air mix by distributing the air in several directions at one time. Results are a more exact temperature, humidity control and better growth.

Installation

Installation of poly tubing is relatively simple. It is recommended that you use sus-hoops for quick and easy hanging of poly duct tubing to an overhead wire. Sus-hoops are made of an extremely strong, tear resistant woven reinforced polyethylene. These hangars do not penetrate the plastic. They often outlast the tubing and are reusable. When installing these hangars, the first should be at least 10 feet away. Each sus-hoop thereafter should be placed not closer than 8 feet apart. The sus-hoop is merely brought around the tubing and fastened to the wire above with a sus-strap.

Tubing and Casing

Standard and technical conditions for supply
API SPEC 5CT
ISO 13680

Uses:
Tubing is used for extracting oil and gas from wells, while casing for sidewall. Casing serves as walls of a well.

Dimension:
Dimension of Tubing: OD 48.26-114.3mm WT 3.18-16mm Length R1 R2 R3
Dimension of Casing: OD 114.3-508mm WT 5.21-16.13mm Length R1 R2 R3

Grade:
H40, J55, K55, M65, N80, L80, C90, T95, C95, P110, Q125

Coupling:
1.Standard Coupling
2.Special Clearance Coupling
3.Special Bevel Coupling
4.API Modified Seal-Ring Coupling(sr13)
5.Combination Coupling or Reducing Coupling

Pup Joint or Connector:
All kind of sizes, thread or other combination of tubing and casing are supplied.

Industries require DTH Drill Pipe for their Complex Drilling Works

To meet the drilling requirements of various industrial sectors, the need for drill pipes has become inevitable. Most of the industries like construction, mining, oil &gas require DTH drill pipes to accomplish their drilling activities. The specially designed drill pipes enable a core to be easily extracted out of earth's surface or rock. The entire length of the pipe seamlessly enters beneath the earth's surface and digs out the mass to obtain even drilled holes. The profitability of these industries depends upon the drilling efficiency of the drill pipes. Hence, it is very important for the industries to choose best designed drilling tools from reputable manufacturers.

The oil and gas industries utilize such drilling pipes, to effortlessly reach down to extreme surface of the ground surface. The oilfield drill pipe is drilled into the earth vertically by using the drilling rig and the oil is obtained effectively. Construction industries also make use of DTH drill pipe to bore tunnels under waterways or major roadways of a highly populated town. The resultant bore is thereby used for a variety of utility pipelines such as, fiber optic, water, electricity, oil and gas.

Get accustomed with the DTH drill pipe

DTH drill pipe is industrial tubular drilling equipment used to bore the ground surface. The most frequent application of this kind of tubular drilling tool is in the oil and gas industry. The DTH drilling pipe is provided with an external steel tube fabrication for greater longevity and higher working efficiency.

The effective features of best-designed DTH drill pipe are:

Strong and durable - The highly durable drill pipe is manufactured using high quality steel, which is composed of alloy containing chromium and molybdenum. A strong pipe can have higher longevity and can be used for extended period of time.

Cost-effectiveness - DTH drill pipes are cost-effective drilling equipment that enhances the productivity of various industries. The drilling tools can be used for various industrial applications.

Why professionals use DTH drill pipes for their extensive drilling tasks?

DTH drill pipes are manufactured and designed in such a manner that it can effectively reduce the hardships of the drilling worker. These drilling tools do come with effective features and specifications to fulfill the different requirements of the professionals. Plumbers may require drilling pipes, to dig large holes in studs and joists. This can ease out their job of installing drains and waste pipes, beneath the surface of the Earth. Also because the plumber is drilling large holes, up to 4 inches, the right angle drill pipe will accomplish his drilling needs efficiently.

Drill Pipes

Standard and technical conditions for supply

API SPEC 5DP

Uses:

For well drilling

Note:

1.EU-External Upset IEU-Internal-External Upset IU-Internal Upset

2.Threads of tool joins are left-hand or right-hand

3.Threads are cooper-plated or phosphated

Grade:

E75, X95, G105, S135

The wear-resistant belt of tool joint:

Arnco 100XT, 200XT, 300XT, 400XT

Internal Coating:

TK34, DPC, TC2000, TC3000