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"SNC631" is a nickel-chromium steel equivalent to tough steel, containing 2.50 to 3.00% nickel. The addition of nickel increases strength while maintaining ductility, making it suitable for large forged steel materials. It is commonly used for crankshafts and gears. 【Features】 ■ Nickel-chromium steel equivalent to tough steel ■ Maintains ductility ■ Suitable for large forged steel materials ■ Contains 2.50 to 3.00% nickel ■ Used for crankshafts and gears ■ Stock dimensions φ13 to φ400 (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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basic information
【Mechanical Properties (Reference Values)】 ■ Heat Treatment - Quenching: 820–880 Oil Cooling - Tempering: 550–650 Rapid Cooling ■ Tensile Test (Type 4 Specimen) - Yield Point: 685 N/mm² or more - Tensile Strength: 830 N/mm² or more - Elongation: 18% or more - Reduction of Area: 50% or more ■ Impact Test - Charpy Impact Value: 118 J/cm² or more ■ Hardness Test - Hardness: 248–302 HBW *For more details, please refer to the catalog or feel free to contact us.
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Applications/Examples of results
【Applications】 ■Crankshafts ■Gears, etc. *For more details, please refer to the catalog or feel free to contact us.
catalog（1）
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Company information
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.
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