HASTELLOY ALLOY B-2 is a nickel-base alloy with excellent resistance to hydrochloric acid at all concentrations and temperatures. Base metal data is available in Alloy Digest Ni-249, September 1977 This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness. It also includes information on joining. Filing Code: Ni-425. Producer or source: Haynes International Inc.