ERW Steel Pipes

ERW pipes are formed by forming a hot-rolled coil through a forming machine. The skin effect and proximity effect of high-frequency current are used to heat and melt the edge of the pipe blank. Pressure welding is carried out under the action of a squeeze roller. Welded steel pipes have a simple production process, high production efficiency, many varieties and specifications, and less equipment, but their general strength is lower than seamless steel pipes.

Additional information

Process Technique

Electric Resistance Welded, Welded


1/2" – 26", 21.3MM-660MM, DN 15- DN 650


1mm – 20mm


11.8m, 12m, 5.8m, 6m, others




A523, API 5L, ASTM A53

Product Details:

Pipe Ends: beveled, straight cut, saw cut, and torch cut

Surface: Lightly oiled, Hot dip galvanized, Electro galvanized, Black Coating, Bare, Varnish coating/Anti rust oil, Protective Coatings (Coal Tar Epoxy,  Fusion Bond Epoxy, 3-layers PE)

Packing: Plastic plugs in both ends, Hexagonal bundles of max. 2,000kg with several steel strips, Two tags on each bundle, Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips, Plastic caps.

Test: Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Technical Properties (Flattening Test, Bending Test,  Hardness Test, Impact Test), Exterior Size Inspection, Hydrostatic Test, NDT TEST ( ET TEST, RT TEST, UT TEST)

Certificates: API 5L-0640, GB/T 28001-2011 idt OHSAS 18001:2007, GB/T 19001-2016/ISO 9001:2015,  gb/t 24001-2016/iso 14001:2015

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common size of steel pipes are in stock more than 800 tons, CIF orders will book stand-on vessel first.

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