ERW Steel Pipe
- Carbon Steel Pipe
- Country of origin
ERW steel pipes means Electric Resistance Welded Pipes.
ASTM: ASTM A53 B, ASTM A178, ASTM A252 GR.2, A500, ASTM A513
API: API 5L X42/46/52/56/60/70
EN: EN 10204/10217 S235JR,S275JR,S355,S355JR,S355J2H
Carbon steel: ASTM A671,ASTM A672
Alloy steel: ASTM A691
Sizes of ERW steel pipe:
Out diameter: 1/2" -24" (21.3mm-610mm)
Wall thickness: 1.65mm-20mm
Manufacturing Process of ERW steel pipe:
Electric Resistance Welded (ERW) pipe is manufactured by cold forming a flat steel strip into a rounded tube and passing it through a series of forming rollers to obtain a longitudinal seam. The two edges are then simultaneously heated with a high frequency current and squeezed together to form a bond. The longitudinal ERW seam does not require filler metal.