Pipe End Cap Production Range: Standards ANSI – B 16.9 ASTM A403 – ASME SA403 – Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings API 590-605 ASME B16.9 – Factory-Made Wrought Buttwelding Fittings ASME B16.25 – Buttwelding Ends' ASME B16.28 – Wrought Steel Buttw...