... GradeApplicationLine PipeAPI 5L, ASTM A53/A106, DIN1629, JIS G3454, JIS3466A, B, X42, X46, X52, X56, X60, X65, X70, St37,ST52Transmission ... ASME SA210, ASME SA213, ASME SA335, DIN 17175, GB3087, GB5310A, B, V, T11, T12, T22, T91, St35.8, St45.8, 20#, 20G ... boiler header, steam pipe, heating pipeStructure PipeASTM A53/A106, GB8162A, B, 20#, 45#, Q345, 20Mn2, 42CrMoUsed for producing mechanical parts ...