American Standard tube into American Standard seamless pipe and welded steel pipe American Standard two according to its manufacturing method. American standard seamless steel tube, also known as American standard seamless tube, common American standard seamless steel pipe for American standard API seamless steel tube, American Standard ASME seamless steel pipe, ASTM seamless steel pipe. Common American standard steel pipe material standard, API (American Petroleum Institute), ASME ASTM (American Society for testing materials) (American Standard Mechanical Engineering Association)

API American Standard pipe: API is the American Petroleum Institute, referred to as the standard, the name is API SPEC 5L. API American Standard steel rank is divided into PSL1 and PSL2. According to the API American Standard steel pipe wall thickness grade is divided into SCH10,20,30,40,60,80100120160, STD, XS, XXS. Among them, the standard weight tube, STD, said the thickened tube to XS said, extra thick tube, XXS said. American Standard pipe wall thickness grade standard commonly used for ANSI/ASME B36.10M, B36.19M.

ASTM: ASTM is the United States American Standard steel materials and experimental standards association. Common standard A106, A53, A179, A192, A210, A213, A252, A500, A519. common material A106B, SA106B, T22, SA210C, T22,, T91, etc.

ASME: ASME American Standard pipe is the mechanical engineering standards association. The difference between American Standard ASTM steel pipe and ASME steel pipe: Steel Pipe ASTM material in front of the no s, ASME steel material in front of the S; ASTM material pipe starts with T, ASME steel pipe material starts with P.