Difference Between Seamless And Erw Pipe

Check Price Difference Between Seamless And Welded Pipe

The Difference Between Seamless Pipe And Erw Pipe Cost and Production Wise

Seamless Pipe

Seamless Pipe

Welded Pipe

Welded Pipe

ERW Pipe

ERW Pipe

Most or all pipes in the piping industry are produced seamlessly or through the welding/Erw process. The main difference between seamless and erw pipe is that a seamless pipe is produced without the help of welds or seams, however, erw pipes are manufactured by welding pieces of steel longitudinally. What is erw pipe? An erw or electric resistance welded pipe is welded with the help of coils and strips of steel. These pipes can be availed in lengths up to 24 OD and are very durable. In the mix of seamless pipe and erw pipe, difference industries have forgotten that both these pipes can suffice in harsh conditions. Seamless pipes can last for a long periods in this conditions, but they are expensive compared to the erw pipes. All our products are produced under the strict guidance of our experienced workers. We are the leading suppliers and manufacturers of erw pipe and seamless pipe throughout the country. These products are available at reasonable prices for all.

The erw pipe meaning was always shadowed by the fact that experts in the past stated that they are weaker pipes in comparison to seamless pipes. They are cold rolled after the hot rolling procedures giving the erw pipe superior corrosion and oxidation resistance properties. These pipes are designed to suffice in high and low-pressure systems. They are available with plain, threaded, and bevelled tubing ends. These unique pipes can be easily customized in different shapes and sizes to suit all your requirements.

The usage of erw pipe means that the investors are looking at a low-cost option, which is highly reliable and can last for long periods without requiring major fixes. These pipes can be formed and machined easily. The erw and seamless pipe difference will continue to cause debates amongst experts and people in the piping world. If you want to get the best deal on these pipes, we are a one-stop destination for all your requirements. If you have any queries or, want to know more about, our pipe erw or our other products contact us or visit our factory.

Difference Between Seamless and Erw Pipe

All Carbon steel pipe such as Casing pipe and Tubing pipe made to API specifications uses seamless or electric-weld supplying processes. There are many Differences between Seamless & ERW Pipe. The main Difference is that the Seamless Piping is suppliers by hot-working steel or, if necessary, by subsequently cold-finishing the hot-worked product to produce the desired shape, dimensions, and properties. The welded seam of electric weld pipe is heat-treated after welding to a minimum temperature of 1,000°F or processed so that no untempered martensite remains.

Such differences of erw are usually eliminated if the electric-weld tubing is heat-treated by the quenched-and-tempered process, which is mandatory for API grades L80, C90, T95, and P110. Electric-welded pipe has one longitudinal seam formed by electric-induction or electric-resistance welding without the addition of filler metal. The edges to be weld seam are pressed together mechanically, and the heat for welding is generated by the resistance to flow of electric current.

In both methods seamless and erw, raw material is first cast into ingots. It is then made into a pipe by forcing the edges together and sealing them with a weld or stretching the steel out into a seamless tube. While it’s true that erw pipe does include a seam that makes it supplying techniques, theoretically weaker and quality assurance regimens each have improved to the extent that welded pipe will generally perform as desired when its tolerances aren’t exceeded.

While the apparent advantage is clear, a critique of seamless piping is that the stretching and rolling process produces an inconsistent wall thickness compared to the more precise thickness of steel sheets destined for welding.The pipe is formed by the seam of the tube and moving the cut coil through a series of rollers is then welded in a chemically neutral environment. In a welded pipe, the seam or the weld-joint is the weaker part of the pipe limiting the strength of the pipe to the strength of the weld-joint. Generally, the process of supplying weld pipe begins with the rolling of a steel coil to the desired gauge thickness to form a flat strip. To produced the flat strip is cut to the width that corresponds with the size of the pipe.

Difference in Seamless Pipe Production Processes Seamless pipes are suppliers using different procedures, depending on the diameter or the ratio of diameter to wall thickness.
Seamless Pipe Raw Material Difference billet
Seamless Pipe outside diameters Difference Up to NB 100 and a diameter / wall thickness ratio of 5 : 1 or smaller
(e. g. 50 : 10, 50 : 20 etc.), for sizes larger than NB 100 normally 8 : 1 or smaller (e. g. 200 : 25, 200 : 30 etc.).
Difference in Welded Pipe Production Processes Welded pipes or ERW Pipes are suppliers from individual steel plates or coils
Welded Pipe Raw Material Difference Sheets, Plates, coils, hot rolled coil
Tolerances Difference 12.5 %, hot rolled seamless pipes, ASTM A999 or EN ISO 1127 T2
Seamless pipe length Difference 13 m Pipe up to NB 100
4 m Pipe up to NB 200
Welded pipe length Difference up to 12 m or 18 m without circumferential welds
Difference between Seamless or ERW Pipe A53, Type S means seamless.
Type F is furnace but welded,
Type E is Electrical resist welded.
Difference between seamless and non seamless pipe supplying process
  • Seamless steel pipe can be produced one time in the rolling process.
  • Welded steel pipe is supplying with steel strip or steel plate, through bending and different welding processes
Cost & Price difference between seamless and welded (ERW) Pipe Welded pipes are always cheaper comare to Seamless Pipes. If you buy Seamless Steel Pipe from India you will get better Quality & Price.

Seamless and ERW Pipe Price difference

Seamless Pipe (Grade A53 B) ERW Pipe (Grade A53 B)
1" 14" 1" 14"
966 USD/ Ton 855 USD/ Ton 588 USD/ Ton 604 USD/ Ton

Contact us for complete price list of different manufacturers such as MSL, ISMT, Jindal, BAO, USL and many others.

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