Professional production of large-caliber double-sided submerged arc welding straight seam steel pipe (JCOE process)
Production caliber: φ406mm-φ1422mm
Production thickness: 7mm-50mm
Production standards and materials
GB/T9711/API5L:
L245/GR.B to L485/X70 PSL1/2
ASTM A671/2:
GR.60/65/70 CL10-CL33
en10217-5: p235gh
EN10219-1/2: S355J0H/J2H
ASTM A691:
1-1/4Cr 2-1/4Cr CL10-CL33
Acid-resistant, low-temperature, heat-treated steel tubing
