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.

Seamless Steel Pipe

Comparison between Stainless Steel 310 and stainless steel 202 pipe

Different industrial processes require different kinds of industrial environments and hence the equipment used in them also differs in qualities. We here discuss the two commonly used stainless steel alloys viz. 310 and 202 and the usage of pipes made from them.
The stainless steel alloy 310 offers extreme resistance to oxidation and its scaling. It also has high strength even at higher and elevated temperatures. It is also extremely ductile and various shapes can be made out of it. The stainless steel 310 pipe offers continuous service that can withstand temperatures up-to 1140 degree Celsius. Their service quality decreases in the presence of sulfur gas. It has high amounts of chromium and hence provides for versatile properties of corrosion resistance. It can resist pittance, crevice, and general corrosions with ease and can also resist marine corrosion caused by high chloride content of sea water.
Stainless steel 202 pipe offers adequate corrosion resistance and strength but is more prone to cracking because of its higher carbon content. The stainless steel 200 series alloy has lower nickel content than the 300 series and is hence is less costly. It has a high carbon content that can result in cracking. In other aspects like fabricability, corrosion resistance, etc. they are similar to 300 series. Still 300 series stainless and 310 stainless steel pipes provide more corrosion resistance than their 202 counterparts.
Hence, it can be concluded that the 310 pipes provide for high corrosion resistance while 202 pipes have better strength. They are used in specific industrial climates that have different wants. While the stainless steel 310 pipe can provide for better corrosion resist in marine environments, the 202 pipes have the better strength that is much required in many other industrial processes.

 ERW Steel 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.

Seamless Steel Pipe

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.
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.
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

Drill Pipes