JIS G4401 Grade SK7

Equivalent material: DIN C60W, NF C65E4U, NF C55E4U, DIN 1.1520, DIN C70W1, DIN C70U, AFNOR C70U, AFNOR C70E2U, AFNOR Y170, BS C70U, JIS SK70, JIS TC70, JIS SK65, EN C70U, EN 1.1520, ISO C70U, GOST U7A-1, GOST U7A-2, GB/T T00073, GB/T T7A

JIS G4401 Grade SK7 general

Property Temperature Value Comment
Density 23.0 °C Density of 7.72 - 8 g/cm³ Typical for Tool And Machining Steel

JIS G4401 Grade SK7 thermal

Property Temperature Value Comment
Coefficient of thermal expansion 23.0 °C Coefficient of thermal expansion of 1E-5 - 1.3E-5 1/K Typical for Tool And Machining Steel
Melting point - Melting point of 1370 - 1425 °C Typical for Tool And Machining Steel
Specific heat capacity 23.0 °C Specific heat capacity of 420 - 460 J/(kg·K) Typical for Tool And Machining Steel
Thermal conductivity 23.0 °C Thermal conductivity of 17 - 42 W/(m·K) Typical for Tool And Machining Steel

JIS G4401 Grade SK7 electrical

Property Value
Carbon Carbon of 0.6 - 0.7 %
Iron Iron of 98.39 - 99.4 %
Manganese Manganese of 0.5 %
Phosphorus Phosphorus of 0.03 %
Silicon Silicon of 0.35 %
Sulfur Sulfur of 0.03 %

JIS G4401 Grade SK7 mechanical

Property Temperature Value Comment
Elastic modulus 23.0 °C Elastic modulus of 203 - 211 GPa Typical for Tool And Machining Steel
Poisson's ratio 23.0 °C Poisson's ratio of 0.3 [-] Typical for Tool And Machining Steel
Shear modulus 23.0 °C Shear modulus of 79 GPa Typical for Tool And Machining Steel

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Henan Bebon Iron&Steel Co., Ltd.

Xicheng Science & Technology Building High-tech Development Zone, Zhengzhou, China

Tel: +86-371-86151827

E-Mail: [email protected]

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