ASTM A290 Grade 5 Class M Quenched and Tempered

Equivalent material: ASTM Grade 5 Class P

ASTM A290 Grade 5 Class M Quenched and Tempered general

Property Temperature Value Comment
Density 23.0 °C Density of 7.8 - 7.9 g/cm³ Typical for Chromium Molybdenum Steel

ASTM A290 Grade 5 Class M Quenched and Tempered thermal

Property Temperature Value Comment
Coefficient of thermal expansion 23.0 °C Coefficient of thermal expansion of 1.1E-5 - 1.4E-5 1/K Typical for Chromium Molybdenum Steel
Melting point - Melting point of 1382 - 1529 °C Typical for Chromium Molybdenum Steel
Specific heat capacity 23.0 °C Specific heat capacity of 448 - 502 J/(kg·K) Typical for Chromium Molybdenum Steel
Thermal conductivity 23.0 °C Thermal conductivity of 36 - 43 W/(m·K) Typical for Chromium Molybdenum Steel

ASTM A290 Grade 5 Class M Quenched and Tempered chemical

Property Value
Aluminium Aluminium of 0.85 - 1.3 %
Carbon Carbon of 0.38 - 0.45 %
Chromium Chromium of 1.4 - 1.8 %
Copper Copper of 0.35 %
Manganese Manganese of 0.4 - 0.7 %
Molybdenum Molybdenum of 0.3 - 0.45 %
Nickel Nickel of 0.3 %
Phosphorus Phosphorus of 0.04 %
Silicon Silicon of 0.4 %
Sulfur Sulfur of 0.04 %
Vanadium Vanadium of 0.03 %

ASTM A290 Grade 5 Class M Quenched and Tempered mechanical

Property Temperature Value Comment
Charpy impact energy 23.0 °C Charpy impact energy of 11 J -
Elastic modulus 23.0 °C Elastic modulus of 200 - 215 GPa Typical for Chromium Molybdenum Steel
Elongation A50 23.0 °C Elongation A50 of 15 % -
Hardness, Brinell 23.0 °C Hardness, Brinell of 255 - 302 [-] -
Poisson's ratio 23.0 °C Poisson's ratio of 0.29 [-] Typical for Chromium Molybdenum Steel
Reduction of area 23.0 °C Reduction of area of 40 % -
Tensile strength 23.0 °C Tensile strength of 825 MPa -
Yield strength Rp0.2 23.0 °C Yield strength Rp0.2 of 585 MPa -

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