WALLEX No. 40 is a self-fluxing, cobalt-base hard-surfacing alloy with excellent resistance to a combination of corrosion and abrasion and relatively good impact properties. It has excellent red hardness and weldability. It is supplied only as atomized powder for application with Wall Colmonoy's SPRAYWELD and FUSEWELD processes. This datasheet provides information on composition, physical properties, hardness, elasticity, and compressive strength as well as fracture toughness. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, and powder metal forms. Filing Code: Co-74. Producer or source: Wall Colmonoy Corporation.