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Identical with ASTM B363, ASME SB-363Ìýis the standard specification for seamless and weldedÌýunalloyed Titanium and Titanium alloy welding fittings. The fittings are intended for general corrosion-resisting and elevated-temperature services.

The Titanium fittings covered in this standard refers to butt welding parts like the 45° and 90° elbows, straight tees, concentric and eccentric reducers, stub ends, and others. These products must be manufactured in conformance with ASME B16.9, ASME B36.19, MSS-SP 25, MSS-SP 43, or ASME BPVC Sections VIII and IX. The weld fittings must be manufactured from Titanium and Titanium alloy pipe, tube, plate, bar and rod, billet, casting, or forgings. The manufacturing process includes forging, forming, shaping, pressing, piercing, extruding, upsetting, rolling, bending, fusion welding or a combination of two or more of these operations.

The standard specification also covers chemical composition, tensile properties, workmanship, finish, appearance, hydrostatic test, inspection and certification, product marking and packaging of the titanium welding fittings.