AISI 440A Hardened

Equivalent material: DIN 1.4109, DIN X 65 CrMo 14, DIN X70CrMo15, SAE 440A, EN X70CrMo15, EN 1.4109, ISO S, ASTM MT440A, ASTM 440A, UNS S44002

AISI 440A Hardened general

Property Temperature Value
Density 23.0 °C Density of 7.7 g/cm³

AISI 440A Hardened thermal

Property Temperature Value
Coefficient of thermal expansion 23.0 °C Coefficient of thermal expansion of 1E-5 1/K
Melting point - Melting point of 1370 °C
Specific heat capacity 23.0 °C Specific heat capacity of 460 J/(kg·K)
Thermal conductivity 23.0 °C Thermal conductivity of 30 W/(m·K)

AISI 440A Hardened chemical

Property Value
Carbon Carbon of 0.6 - 0.75 %
Chromium Chromium of 14 - 18 %
Iron Iron of 78.4 - 85 %
Manganese Manganese of 0 - 1 %
Molybdenum Molybdenum of 0 - 0.8 %
Phosphorus Phosphorus of 0 - 0.04 %
Silicon Silicon of 0 - 1 %
Sulfur Sulfur of 0 - 0.015 %

AISI 440A Hardened electrical

Property Temperature Value Comment
Electrical resistivity 23.0 °C Electrical resistivity of 6E-7 Ω·m Typical for Martensitic Stainless Steel

AISI 440A Hardened mechanical

Property Temperature Value Comment
Elastic modulus 23.0 °C Elastic modulus of 210 GPa -
Elongation 23.0 °C Elongation of 5 % -
Poisson's ratio 23.0 °C Poisson's ratio of 0.3 [-] Typical for Martensitic Stainless Steel
Shear modulus 23.0 °C Shear modulus of 77 GPa Typical for Martensitic Stainless Steel
Tensile strength 23.0 °C Tensile strength of 1790 MPa -
Yield strength 23.0 °C Yield strength of 1650 MPa -

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