Support for standard steel grades of structural alloy steel!
"SCM440H" is used for parts that require strength and toughness, similar to "SCM435H," and is referred to as high-strength steel. By adding an appropriate amount of manganese, chromium, and molybdenum to steel with a carbon content of 0.25% to 0.5%, it hardens through quenching. Furthermore, it is used for gears, shafts, and other components that require greater strength than "SCM435H" through appropriate tempering. 【Features】 ■ High-strength steel ■ Used for parts requiring strength and toughness ■ Hardens through quenching ■ Used for gears, shafts, etc. ■ Stock dimensions φ13 to φ380 (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: 830–880 Oil Cooling - Tempering: 530–630 Rapid Cooling ■ Tensile Test (Type 4 Specimen) - Yield Point: 835 N/mm² or more - Tensile Strength: 980 N/mm² or more - Elongation: 12% or more - Reduction of Area: 45% or more ■ Impact Test - Charpy Impact Value: 59 J/cm² or more ■ Hardness Test - Hardness: 285–352 HBW *For more details, please refer to the catalog or feel free to contact us.
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Applications/Examples of results
【Usage】 ■ Gears ■ Shafts, 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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