Spiral steel pipe itself has no life limit, and the service life is mainly related to the operating environment and production process. Spiral steel pipe operating environment is relatively poor In order to extend the service life, the oute.
ASTM A210-C,JIS G3201,DIN17200,ASTM A266
hot finished pipe
1.ASTM A106gr b/ A178-c/ A210-A,JISG3454/3455/3461/3456,DIN7175/1626/1629;
2.JIS G345,ASTM A210-C,DIN1629/17155;
3.JIS G3201/G4051,DIN17200,ASTM A266
Specification range: a)OD:25-325mm b)WT:4-70mm