Main materials of line pipe

The line pipe includes seamless steel pipe and welded steel pipe two type, the pipe ends have flat end, threaded end and socket end; coupled essentials for welding ends, coupling connection, socket connection and so on.

Materials mainly are: 10 #, 20 #, 35 #, 45 #, 16Mn (Q345), 27SiMn, 40Cr, 15CrMoG, 35CrMo, 12Cr1MoVG, 10CrMo910, T91 (Steel Institute 102), A335P11, A335P12, A335P22, A335P91, A213T11, A213T12, SA106B, SA106C, A333GR.1, A333GR.6, ST45.8-III, J55, K55, N80, L80, P110, X40-70, L245, L360, DZ40, DZ50, R80, YB235-70,12Cr2MoWVTiB etc. .

APISPEC5L-2000 line pipe steel is a pipeline specification prepared and published by the American Petroleum Institute, common used throughout the world. This kind of critical steel material: B, X42, X56, X65, X70 and other steel grade.