ASTM-WC1 is a molybdenum alloy steel recommended for castings for pressure containing parts suitable for high temperature applications. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness and creep. It also includes information on high temperature performance as well as heat treating, machining, and joining. Filing Code: SA-19. Producer or source: Alloy steel mills and foundries.