Why are ASME flanges still referred to as ANSI flanges in some places?

Release time：2025-09-01    Click：58

　　To be clear, “ASME flange” is the correct and current designation for flanges that comply with ASME B16.5 standards (which ANSI continues to accredit).

　　And “ANSI flange” is simply an outdated term for what is now an ASME B16.5 flange.

　　Still, ASME flanges are still referred to as ANSI flanges in some instances simply out of habit. For years, ANSI was the main body in charge of developing these standards and professionals have become so familiar with the term that they default to calling them ANSI flanges.

　　It was in 1988 that the ANSI/ASME designation (as in ASME/ANSI B16.5) was used, and it wasn’t until 1996 that the ASME designation (as in ASME B16.5) became the norm

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