ASME B16.9 Standard covers overall dimensions, tolerances,ratings, testing, and markings for factory-made wrought butt welding fittings in sizes NPS 1⁄2 through NPS 48 (DN 15 through DN 1200). Butt-Weld Fittings are available in variety of kinds such as tees, caps, elbows, reducers and outlets.All butt weld fittings have beveled ends as per ASME B16.25 standard. This helps create full penetration weld without any extra preparation needed for the butt weld fitting.Butt weld pipe fittings are most commonly available in carbon steel, stainless steel, nickel alloy, aluminum and high yield material. High yield butt weld carbon steel pipe fittings are available in A234-WPB, A234-WPC, A420-WPL6, Y-52, Y-60, Y-65, Y-70.
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