Views: 4 Author: Site Editor Publish Time: 2023-10-07 Origin: Site
ERW steel pipes are manufactured by low-frequency or high-frequency resistance "resistance".
These are spherical pipes with longitudinal welds made from steel plates. Oil, natural gas, and other vapor-liquid materials are transported with it, and it can accommodate a range of high and low pressure needs. It currently has a crucial place in the global transportation pipe industry.
Heat is produced as current passes over the welding area's contact surface during ERW pipe welding. The steel is heated on both edges until a connection can be formed between them. The tube blank's edges melt and push together simultaneously due to the combined pressure. We produce various types of welded pipes, such as ERW pipe, LSAW pipe, SSAW pipe, etc.
Short Description of ERW Steel Pipe:
Size:OD: 21.3mm ~ 660mm;WT: 1mm ~ 17.5mm; LENGTH: 0.5mtr ~ 22mtr (5.8/6/11.8/12 meters, SRL, DRL)
Standard & Grade:ASTM A53, Grade A/B/C,API 5L,PSL1,PSL2,GR.B/X42-X80,ASTM A795,ASTM A135
Ends :Square Ends/Plain Ends (straight cut, saw cut, torch cut), Beveled/Threaded Ends,Gooved Ends
Delivery:Within 10-30 days and depends on your order quantity
Payment:TT, LC , OA , D/P
Packing:Bundled/In Bulk, Plastic Caps Plugged, Waterproof Paper Wrapped
Usage:For Low Pressure Fluid Transmission, Machinery Manufacturing,Equipment Fabrication,Fire Prevention Pipe
Tolerances of Outside Diameter - ERW Steel Pipe
Tolerances of Wall Thickness - ERW Steel Pipe
What kind of pipes (standards) could be made in ERW processes？
There are a lot of pipes could be manufactured by ERW process. Here below we list for the most common standards in pipelines.
Carbon steel pipe in ERW
ASTM A53 Grade A and B (and Galvanized)
ASTM A252 pile pipe
ASTM A500 structural tubing
ASTM A134 and ASTM A135 pipe
EN 10219 S275, S355 pipe
Stainless steel ERW pipe/Pipe standards and specifications
ASTM A269 stainless pipe
ASTM A270 sanitary tubing
ASTM A312 Stainless pipe
ASTM A790 ferritic/austenitic/duplex stainless pipe
API ERW Line pipe
API 5L B to X70 PSL1 (PSL2 shall be in HFW process)
API 5CT J55/K55, N80 casing and tubing
ERW steel pipe application and usage:
ERW steel pipe used for transporting gas and liquid objects such as oil and gas, could meet the low and high pressure requirement. In recent years, with the development of ERW technology, more and more ERW steel pipe used in the oil and gas fields, automobile industry and so on.
Advantages of ERW pipe:
High efficiency, low cost, material saving, easy automation.