ASTM A709 Grade QST 485 Heat-Treated

ASTM A709 Grade QST 485 Heat-Treated general

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

ASTM A709 Grade QST 485 Heat-Treated thermal

Property Temperature Value Comment
Coefficient of thermal expansion 23.0 °C Coefficient of thermal expansion of 1.32E-5 - 1.38E-5 1/K Typical for Low Carbon Steel
Max service temperature - Max service temperature of 500 °C Typical for Carbon Steel
Melting point - Melting point of 1480 - 1526 °C Typical for Low Carbon Steel
Specific heat capacity 23.0 °C Specific heat capacity of 465 J/(kg·K) Typical for Low Carbon Steel
Thermal conductivity 23.0 °C Thermal conductivity of 25 - 93 W/(m·K) Typical for Low Carbon Steel

ASTM A709 Grade QST 485 Heat-Treated chemical

Property Value
Carbon Carbon of 0.12 %
Chromium Chromium of 0.25 %
Copper Copper of 0.45 %
Manganese Manganese of 1.6 %
Molybdenum Molybdenum of 0.07 %
Nickel Nickel of 0.25 %
Niobium Niobium of 0.05 %
Phosphorus Phosphorus of 0.03 %
Silicon Silicon of 0.4 %
Sulfur Sulfur of 0.03 %
Vanadium Vanadium of 0.09 %

ASTM A709 Grade QST 485 Heat-Treated magnetic

Property Value Comment
Curie temperature Curie temperature of 770 °C Typical for Low Carbon Steel

ASTM A709 Grade QST 485 Heat-Treated electrical

Property Temperature Value Comment
Electrical resistivity 23.0 °C Electrical resistivity of 1.43E-7 - 1.74E-7 Ω·m Typical for Carbon Steel

ASTM A709 Grade QST 485 Heat-Treated mechanical

Property Temperature Value Comment
Elastic modulus 23.0 °C Elastic modulus of 200 - 215 GPa Typical for Low Carbon Steel
Poisson's ratio 23.0 °C Poisson's ratio of 0.29 [-] Typical for Low Carbon Steel
Shear modulus 23.0 °C Shear modulus of 82 GPa Typical for Low Carbon Steel
Tensile strength 23.0 °C Tensile strength of 620 MPa -
Yield strength Rp0.2 23.0 °C Yield strength Rp0.2 of 485 MPa -

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