This Standard Practice covers stainless steel, copper nickel and titanium, NPS 1/4 through 12, and aluminum NPS 1/2 through 12 belled end socket welding fittings, including dimensions, tolerances, materials, socket end details, heat treating and mark-ing requirements for use with the following pipe standards:a) ASTM A 312b) ASTM B 466 c) ASTM B 467 d) MIL-T-16420 e) ASTM B 861 or B 862 f) ASTM B 241
Design and manufacturing requirements are specified for factory-made, wrought, thin wall pipe fittings formed from either tubular sections or flat material. All fittings made to this Standard Practice are one of two thicknesses: Class 200, if copper-nickel, or Schedule 10 if made of any other material.