HASTELLOY Alloy G-3 is a nickel-base alloy with outstanding corrosion resistance in the as-welded condition. It is an improved wrought version of HASTELLOY Alloy G. Alloy G-3 has the same excellent general corrosion resistance as Alloy G, along with improved resistance to heat-affected zone (HAZ) attack and excellent weldability. Alloy G-3 is a logical choice for many chemical applications, particularly those involving sulfuric and phosphoric acids, as well as applications where Alloy G has been used successfully. This datasheet provides information on composition, physical properties, hardness, tensile properties, and bend strength. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Ni-277. Producer or source: Cabot Corporation.