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 A53/BS 6323 carbon steel seamless pipe
OD: HRS 2"-30", CDS 0.875"-18"
WT: HRS 0.250"-4" CDS 0.035"-0.875"
ASTM A 53 Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless
GB/T8162 Seamless Steel Tubes for Structural Purposes
JIS G3444 Carbon steel tubes for general structural purposes
JIS G3445 Carbon steel tubes for machine structural purposes
DIN 2448 SEAMLESS STEEL PIPES AND TUBES
BS 6323 SEAMLESS AND WELDED STEEL TUBES FOR AUTOMOBILE MECHANICAL AND GENERAL ENGINEER PURPOSE
EN 10210 Seamless structural steel pipes
EN 10297 Seamless circular steel tubes for mechanical and general engineering purposes