Standard API | ASTM | BS | DIN | DNV | GB | ISO | JIS | KS | LR | NF | Others
ASTM
Standard Number
A 381 (Metal Arc Welded Steel Pipe for USE with High Pressure Transmission Systems)
Grade Class Y35 Class Y42 Class Y46 Class Y48 Class Y50 Class Y52 Class Y56 Class Y60 Class Y65 [ All grade ]