Black ERW steel pipe

Black ERW steel pipe Black ERW steel pipe ERW steel pipe with bevelled ends & plastic caps Hunan Great Steel Pipe Co.,Ltd can provide you with Electric Resistance Welded (ERW) Pipe suitable for your project needs. ERW pipe cold formed from a ribbon of steel pulled through a series of rollers and formed into a tube which is fused through a electric charge. Common sizes for ERW Steel Pipe range from 2 3/8 inch OD to 24 inch OD in a variety of lengths to over 100 feet. Surface finishes are available in bare and coated formats and ERW steel pipe processing can be handled on site to customer specifications. Black ERW Steel Pipe Factory Situation ​Black ERW steel pipe is hot-rolled coil through the molding machine, the use of high-frequency current skin effect and proximity effects, so that the edge of the tube heating and melting, in the role of squeeze roller pressure welding to achieve production. Black ERW steel pipe, compared with ordinary welding technology is not the same, the weld is made of the base material of the steel body melting, mechanical strength better than the general pipe. Smooth appearance, high precision, low cost welding seam height, favorable 3PE anti-corrosion coating. High-frequency welded steel pipe and submerged arc welded pipe welding methods are significantly different. As the welding is completed at high speed instantly, to ensure the quality of welding is much more difficult than submerged arc welding structural steel pipe. Black iron pipe As long as the surface does not make any deal with the ordinary iron pipe, it called black iron pipe. Post time: Sep-10-2019 Material carbon steel/alloy/stainless steel Standard ASTM A53/A106 Technical hot rolled Out diameter 20-1420mm Thickness 1 – 20 mm Section shape round Certification ISO Surface Surface Usage petroleum, chemical industry, electricity, boiler, and so on Packaging bundle ,bulk in containner or according to clients’ requirement