... Steel Oil Pipe OD: 21.3 -762mm Certificate : API 5L , API 5CT, ISO Usage: Applicable to transport liquid, gas, oil ... Specification for Seamless and Welded Steel Pipe for Low-Temperature ServiceASTM A335: Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High- ... 17Mn4, 19Mn5, 15Mo3, 13CrMo910, 10CrMo910, 14MoV63, X20CrMoV121API 5L: A B X42,X46, X52, X60, X65, X70, X80SizeOuter Diameter: ...