Lescalloy 17-4 Vac-Arc is special melt version of a well-known precipitation-hardening martensitic stainless steel. 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-1040. Producer or source: Latrobe Specialty Steel Company.

LESCALLOY 4330 + V VAC-ARC steel is a vanadium modified 4330 having improved hardenability and mechanical properties. It is produced by consumable electrode vacuum are remelting providing optimum cleanliness and preferred ingot structure. This datasheet provides information on composition, physical properties, hardness, and tensile properties as well as fracture toughness. It also includes information on forming, heat treating, machining, and joining. Filing Code: SA-314. Producer or source: Latrobe Steel Company. Originally published May 1975, revised March 1992.

LESCALLOY UT-19 VAC-ARC is a premium quality carburizing steel with high hardenability. It is produced by vacuum are remelting (VAR) to provide a preferred ingot solidification and superior microcleanliness. It is used for aircraft gears, pinions and other carburized parts that require a high minimum core hardness. 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: SA-394. Producer or source: Latrobe Steel Company.

LESCALLOY 15-5 VAC-ARC is a precipitation hardening martensitic stainless steel with minimal delta ferrite. Vacuum arc remelting in the production of the alloy provides a low gas content, clean steel with optimum transverse properties. 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-522. Producer or source: Latrobe Steel Company.

LESCALLOY 4340 VAC-ARC is a low-alloy steel that can be heat treated to high strength levels. It has a good combination of strength, ductility and toughness along with high hardenability. It is produced by the vacuum-consumable-electrode process to provide optimum cleanliness and preferred ingot structure. It is used for aircraft components including retainer rings for critical bearings and other heavy-duty applications. This datasheet provides information on composition, physical properties, and elasticity. It also includes information on forming, heat treating, machining, and joining. Filing Code: SA-361. Producer or source: Latrobe Steel Company.

LESCALLOY D6AC VAC ARC is a high-hardenability low-alloy steel for high-strength structural applications requiring tensile strengths up to 280,000 psi. It provides a high ratio of yield strength to tensile strength, good ductility and excellent notch toughness with a tough, fibrous fracture as low as 210 F in impact tests. It is produced by the vacuum consumable electrode melting process to provide optimum cleanliness and preferred ingot structure. Its uses include fasteners, shafting and aircraft components. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on high temperature performance as well as forming, heat treating, machining, and joining. Filing Code: SA-335. Producer or source: Latrobe Steel Company.