Inco-Weld 725NDUR filler metal is a corrosion-resistant alloy similar to Inconel Filler Metal 625 (see Alloy Digest Ni-327, December 1985) but with higher strength and hardness. Applications include the oil exploration down-hole equipment market. This datasheet provides information on composition, hardness, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as heat treating and joining. Filing Code: Ni-540. Producer or source: Inco Alloys International Inc.