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"SNCM439" is a material with relatively high yield strength and tensile strength among nickel-chromium-molybdenum steels. Its main applications are for large shafts and gears. It is a tough steel with excellent hardenability, commonly used in machine structural components that require toughness. Some stock items also meet the composition of "SNB23," so please consult us. 【Features】 ■ Material with relatively high yield strength and tensile strength ■ Tough steel with excellent hardenability ■ Active in machine structural components such as large shafts and gears ■ Stock dimensions φ13 to φ480 (some dimensions may not be in stock) *For more details, please refer to the catalog or feel free to contact us.
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【Mechanical Properties (Reference Values)】 ■ Heat Treatment - Quenching: 820–870 Oil Cooling - Tempering: 580–680 Rapid Cooling ■ Tensile Test (Type 4 Specimen) - Yield Point: 885 N/mm² or higher - Tensile Strength: 980 N/mm² or higher - Elongation: 16% or higher - Reduction of Area: 45% or higher ■ Impact Test - Charpy Impact Value: 69 J/cm² or higher ■ Hardness Test - Hardness: 293–352 HBW *For more details, please refer to the catalog or feel free to contact us.
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【Applications】 ■ Components for machine structures ■ Large shafts ■ Gears, etc. *For more details, please refer to the catalog or feel free to contact us.
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Hotta Hagane Co., Ltd. is a company that sells and processes special steel and stainless steel in general. We collaborate with processing factories that have skilled techniques in forging, heat treatment, drawing, and peeling of special steel, and we propose and respond to our customers' advanced requests. Please feel free to contact us.