ASTM ANSI ASME Three U.S. Standard Difference Is What?

Do pipe fittings trade staff will always encounter in the work of ASTM ANSI ASME three pipe fittings standard, many people see this standard is always silly to distinguish, today to tell you what the difference between the three in the pipeline?

ASME is the American Society of Mechanical Engineers standards

ASTM is the American Society for Testing and Materials

ANSI is the American National Standard

But literally we can understand in fact the three just different institutions, as if we have the Ministry of Chemical Industry HG, GB, petrochemical SH, etc., specifically to the ASTM is the U.S. material standards, equivalent to the domestic standard GB713, ANSI is a flange standard, similar to the domestic HG20615. and ASME is the design specification, but because ASME is a complete system, so the ASTM is the American Society of Mechanical Engineers standard. Complete system, so the ASTM and ANSI were included in the ASME system inside, three different standardization organizations, each standard is a self-contained system, is the American Standard system with the greatest impact and application. Which ASME standards and ANSI standards cover the vast majority of industrial areas, including materials, processing, technology, experiments and so on, ASEME cited many ANSI and ASTM standards, for piping, piping accessories, these three are basically unified, commonly known as the American Standard piping, pipe fittings, piping accessories, the most widely used is the ASME/ANSI standards.

ASME does not do specific work, experiments and development work is almost all done by ANSI and ASME, ASME only recognized which specification for their own use, so often see the duplication of the standard number, actually the same content.