... Maximum of 11.8m ProductStandardSteel GradeApplicationLine PipeAPI 5L, ASTM A53/A106, DIN1629, JIS G3454, JIS3466A, B, X42, X46, X52, X56, ... medium & high pressure boiler header, steam pipe, heating pipeStructure PipeASTM A53/A106, GB8162A, B, 20#, 45#, Q345, 20Mn2, 42CrMoUsed for ... steel is shaped into a hollow tube. The seamless pipe is then finished to dimensional and wall thickness specifications ...