ISO 4957 Grade C85W quenched (+Q)

ISO 4957 Grade C85W quenched (+Q) introduction

Full-harden diameter: approx. 7 mm
Application: frame, circular and band saws for wood-working, handsaws for forestry, mowing-machine knifes

Equivalent material: GB T8Mn, GOST U8GA-2, STAS OSC8M, UNE F.510.A, DIN 1.1830, EN 1.1830

ISO 4957 Grade C85W quenched (+Q) general

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

ISO 4957 Grade C85W quenched (+Q) 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

ISO 4957 Grade C85W quenched (+Q) chemical

Property Value
Carbon Carbon of 0.8 - 0.9 %
Manganese Manganese of 0.5 - 0.7 %
Phosphorus Phosphorus of 0.03 %
Silicon Silicon of 0.25 - 0.4 %
Sulfur Sulfur of 0.02 %

ISO 4957 Grade C85W quenched (+Q) 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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