ASTM B653/B653M-11(2020)

Anotácia textu normy ASTM B653/B653M-11(2020) :

This specification covers fittings, factory made from three grades of zirconium and zirconium alloys. The term welding fittings applies to butt-welding parts such as 45 and 90? elbows, 180? returns, caps, tees, reducers, lap-joint stub ends, and other types. The fittings are furnished in three grades as follows: Grade R60702 or PZ 2 which is unalloyed zirconium, Grade R60704 or PZ4 which is zirconium-tin, and Grade R60705 or PZ5 which is zirconium-niobium. Forging, forming, or shaping operations may be performed by hammering, pressing, piercing, extruding, upsetting, rolling, bending, fusion welding, machining, or by a combination of these operations. The forming procedure shall be so applied that it will not produce injurious defects in the fittings. Filler metal, when used, shall be the same grade as the base metal. The material shall conform to the requirements as to chemical composition and tensile properties specified.


Keywords:
fitting, pipe, zirconium, zirconium alloy,, ICS Number Code 77.150.99 (Other products of non-ferrous metals)