Standard API | ASTM | BS | DIN | DNV | GB | ISO | JIS | KS | LR | NF | Others
API
Standard Number
5CT (CASING AND TUBING )
Grade H-40 J-55 K-55 N-80 C-75-1 C-75-2 C-75-3 C-75-9Cr C-75-13Cr L-80-1
L-80-9Cr L-80-13Cr C-90-1 C-90-2 C-95 T-95-1 T-95-2 P-105 P-110
Q-125-1 Q-125-2 Q-125-3 Q-125-4 [ All grade ]