CARPENTER PH 13-8 Mo is a martensitic precipitation-hardening stainless steel. It has high strength and hardness combined with good ductility and toughness in large sections. Compared to other ferrous alloys this material offers a high level of useful mechanical properties under severe environmental conditions. It is highly resistant to general corrosion and to stress-corrosion cracking. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SS-477. Producer or source: Carpenter.