ASTM A372 Grade G Class 55, Normalized, Normalized and Tempered, Liquid Quenched and Tempered, or Normalized followed by Liquid Quench and Temper

Equivalent material: ASTM Grade G

ASTM A372 Grade G Class 55, Normalized, Normalized and Tempered, Liquid Quenched and Tempered, or Normalized followed by Liquid Quench and Temper general

Property Temperature Value Comment
Density 20.0 °C Density of 7.8 - 7.9 g/cm³ Typical for Medium Carbon Steel

ASTM A372 Grade G Class 55, Normalized, Normalized and Tempered, Liquid Quenched and Tempered, or Normalized followed by Liquid Quench and Temper thermal

Property Temperature Value Comment
Coefficient of thermal expansion 20.0 °C Coefficient of thermal expansion of 1.32E-5 1/K Typical for Medium Carbon Steel
Max service temperature - Max service temperature of 500 °C Typical for Carbon Steel
Melting point - Melting point of 1380 - 1514 °C Typical for Medium Carbon Steel

ASTM A372 Grade G Class 55, Normalized, Normalized and Tempered, Liquid Quenched and Tempered, or Normalized followed by Liquid Quench and Temper chemical

Property Value
Carbon Carbon of 0.25 - 0.35 %
Chromium Chromium of 0.4 - 0.65 %
Manganese Manganese of 0.7 - 1 %
Molybdenum Molybdenum of 0.15 - 0.25 %
Phosphorus Phosphorus of 0.02 %
Silicon Silicon of 0.15 - 0.35 %
Sulfur Sulfur of 0.01 %

ASTM A372 Grade G Class 55, Normalized, Normalized and Tempered, Liquid Quenched and Tempered, or Normalized followed by Liquid Quench and Temper electrical

Property Temperature Value Comment
Electrical resistivity 20.0 °C Electrical resistivity of 1.43E-7 - 1.74E-7 Ω·m Typical for Carbon Steel

ASTM A372 Grade G Class 55, Normalized, Normalized and Tempered, Liquid Quenched and Tempered, or Normalized followed by Liquid Quench and Temper mechanical

Property Temperature Value Comment
Elastic modulus 20.0 °C Elastic modulus of 200 - 215 GPa Typical for Medium Carbon Steel
Elongation A50 20.0 °C Elongation A50 of 20 % -
Hardness, Brinell 20.0 °C Hardness, Brinell of 179 [-] -
Poisson's ratio 20.0 °C Poisson's ratio of 0.29 [-] Typical for Medium Carbon Steel
Shear modulus 20.0 °C Shear modulus of 75 - 80 GPa Typical for Carbon Steel
Tensile strength 20.0 °C Tensile strength of 545 - 760 MPa -
Yield Strength Rp0.2, short transverse 20.0 °C Yield Strength Rp0.2, short transverse of 380 MPa -

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