ASTM A355 Class A Quenched and Tempered; Hardness Range 1

Equivalent material: ASTM A, UNS K04000

ASTM A355 Class A Quenched and Tempered; Hardness Range 1 general

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

ASTM A355 Class A Quenched and Tempered; Hardness Range 1 thermal

Property Temperature Value Comment
Coefficient of thermal expansion 23.0 °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
Specific heat capacity 23.0 °C Specific heat capacity of 470 - 520 J/(kg·K) Typical for Medium Carbon Steel
Thermal conductivity 23.0 °C Thermal conductivity of 21 - 52 W/(m·K) Typical for Medium Carbon Steel

ASTM A355 Class A Quenched and Tempered; Hardness Range 1 chemical

Property Value
Aluminium Aluminium of 0.95 - 1.3 %
Carbon Carbon of 0.38 - 0.43 %
Chromium Chromium of 1.4 - 1.8 %
Manganese Manganese of 0.5 - 0.7 %
Molybdenum Molybdenum of 0.3 - 0.4 %
Phosphorus Phosphorus of 0.04 %
Silicon Silicon of 0.15 - 0.35 %
Sulfur Sulfur of 0.04 %

ASTM A355 Class A Quenched and Tempered; Hardness Range 1 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 A355 Class A Quenched and Tempered; Hardness Range 1 mechanical

Property Temperature Value Comment
Elastic modulus 23.0 °C Elastic modulus of 200 - 215 GPa Typical for Medium Carbon Steel
Hardness, Brinell 23.0 °C Hardness, Brinell of 223 - 269 [-] -
Hardness, Rockwell B 23.0 °C Hardness, Rockwell B of 98 - 104 [-] -
Hardness, Rockwell C 23.0 °C Hardness, Rockwell C of 19 - 28 [-] -
Poisson's ratio 23.0 °C Poisson's ratio of 0.29 [-] Typical for Medium Carbon Steel
Shear modulus 23.0 °C Shear modulus of 75 - 80 GPa Typical for Carbon Steel

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