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"SNCM447" is a tough steel that is particularly excellent in hardness and strength among SNCM materials. The yield point is generally considered to be above 930, which is a value not seen in other alloy steels for machine structures, and it also has a high hardness compared to similar materials. It is used for large shafts, gears, and so on. 【Features】 ■ Particularly excellent in hardness and strength among SNCM materials ■ Yield point is generally above 930 ■ Used for large shafts, gears, etc. ■ Stock dimensions φ13 to φ400 (some sizes 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: 930 N/mm² or more - Tensile Strength: 1030 N/mm² or more - Elongation: 14% or more - Reduction of Area: 40% or more ■ Impact Test - Charpy Impact Value: 59 J/cm² or more ■ Hardness Test - Hardness: 302–368 HBW *For more details, please refer to the catalog or feel free to contact us.
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【Applications】 ■ 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.