Carpenter CTS BD1 alloy is a high-carbon chromium steel that provides stainless properties with high hardness and excellent wear resistance. In terms of hardness and wear resistance, this alloy behaves very similarly to tool steels. This alloy attains a hardness of 58–60 HRC when heat treated and has been used for cutlery, ball bearings, and small machinery parts subjected to high wear conditions. This datasheet provides information on composition and physical properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-1160. Producer or source: Carpenter Specialty Alloys.

STROLOY 503-A is a hypereutectoid steel of bearing quality. It has through-hardening characteristics similar to those of AISI 52100 steel. Stroloy 503-A is made in accordance with ASTM A 295-84. It is used principally in ball bearing applications. This datasheet provides information on composition and hardness. It also includes information on forming, heat treating, and machining. Filing Code: SA-406. Producer or source: Babcock & Wilcox Company. See also Alloy Digest SA-281, October 1972.

AISI 1095 is a high-carbon, water-hardening tool and spring steel of low hardenability. Depending on the properties required, it may be used in the astrolled, annealed, normalized or liquid-quenched-and-tempered condition. It is hardened by austenitizing and quenching in water (preferably) but it may be quenched in oil if a less drastic quench meets requirements. Its many uses include springs, bushings, drills, hay-rake teeth, pins and ball bearings. 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, and joining. Filing Code: CS-99. Producer or source: Carbon steel mills.

AISI Type 440B is a hardenable high-carbon high-chromium steel recommended stainless for cutlery, valve parts, ball bearings, pivot pins, etc. This datasheet provides information on composition, physical properties, microstructure, 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-223. Producer or source: Stainless steel mills.