UGIMA 4021 and UGIMA 420A are identical grades that are differently named for the European and North American markets, respectively. The grade is similar to UNS S42000 and is a hardenable martensitic stainless steel with a higher carbon content than type 410. UGIMA 4021/420A contain an addition of calcium by the UGIMA process. This steelmaking technique produces malleable oxide inclusions with a low melting point. The inclusions then lubricate the metal-tool interface in machining and improve productivity. This datasheet provides information on composition. It also includes information on corrosion resistance as well as heat treating and machining. Filing Code: SS-760. Producer or source: Ugine-Savoie.

Remanit 4034 is a cutlery grade with very high carbon content that provides both hardness and wear resistance. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on heat treating and joining. Filing Code: SS-669. Producer or source: Thyssen Stahl AG.

CarTech 420 is a hardenable, 13% chromium, martensitic stainless steel with higher strength and hardness, and better wear resistance than Type 410 stainless steel. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-1321. Producer or source: Carpenter Technology Corporation.

AK 420 martensitic stainless steel has good corrosion resistance with increased strength over other 400 martensitic stainless steels. The alloy is magnetic. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: SS-1212. Producer or source: AK Steel Corporation.

Armco 420 is an iron-chromium stainless steel with added carbon content (0.3% nominal) for higher hardness. The alloy is ferritic in the annealed condition and martensitic after rapid cooling in air or a liquid medium from above the critical temperature. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: SS-781. Producer or source: Armco International Sales.

Assab 2083 is a 13.5% chromium corrosion resistant mold steel that is characterized by high wear resistance and good polishability. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as heat treating and machining. Filing Code: TS-822. Producer or source: Assab Group.

Zapp Ergste 1.4034YK is a medium-carbon, 13.5% Cr, martensitic stainless steel that is designed for applications requiring high strength and hardness, along with good corrosion resistance in moderately corrosive environments. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, machining, and joining. Filing Code: SS-1320. Producer or source: Zapp AG.

Nirosta 4031 (Type 420) is a martensitic grade of stainless steel that is heat treatable and has wear and corrosion resistance. It is predominately used in the quenched-and-tempered condition. Typical applications are blades and shears for all types of cutting. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as heat treating, machining, and joining. Filing Code: SS-925. Producer or source: ThyssenKrupp Nirosta GmbH.

Zapp Ergste 1.4028YN is a medium-carbon, 13% Cr, martensitic stainless steel that is designed for medical applications requiring high strength and hardness along with good corrosion resistance in moderately corrosive environments. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-1326. Producer or Source: Zapp AG.

CRUCIBLE 420 is a hardenable chromium steel designed particularly for cutlery applications. It is the general-purpose cutlery grade of stainless steel. It is magnetic at all times. Among its many applications are bushings, cutlery, valve trim and dental and surgical instruments. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-394. Producer or source: Crucible Specialty Metals Division, Colt Industries.

Carpenter Stainless No. 2 Mold Steel is a 13% chromium steel ideally suited for long-run molding jobs. It is specifically used for protection against the following corrosive conditions: (1) Rusting of cavities when machines are shut down or molds are stored, (2) Rusting of mold cavities when using corrosive plastics, and (3) Corrosion problems when molds are used in hot, humid climates. In addition to resisting the above corrosive conditions, users have found that this steel has many other cost-reducing advantages for applications where corrosion is not involved. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, and machining. Filing Code: SS-367. Producer or source: Carpenter.