Thickness:Din(1),Din(2),Sch40,Sch80,Std,Sch160,Xs,Etc. We stock & supply seamless ASTM A53 GR.B,ASTM A106 GR.B, API 5L GR.B carbon steel pipe,helping you get the materials you need to complete your project on time and on budget. Simply put, we have the right grade and size to meet your special requirements and quality standards.