FERRALIUM alloy SD40 is a modification of FERRALIUM alloy 255 (Alloy Digest SS-481, January 1987) with higher nominal molybdenum and nitrogen. It meets the empirical PREN formula to a minimum 40. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on low and high temperature performance, and corrosion resistance as well as machining and joining. Filing Code: SS-611. Producer or source: Langley Alloys Ltd.

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