Standard API | ASTM | BS | DIN | DNV | GB | ISO | JIS | KS | LR | NF | Others
ASTM
Standard Number
A 335 (Seamless Ferritic Alloy Steel Pipe for High Temperature Service)
Grade P1 P2 P5 P5b P5c P7 P9 P11 P12 P15 P21 P22 P91 [ All grade ]