EN 10083-1 Grade C30R quenched and tempered (+QT)

EN 10083-1 Grade C30R quenched and tempered (+QT) introduction

Steel C30R is suitable for components without higher ductility requirements and enhanced workability while maintaining mechanical properties in vehicle manufacturing, engine and machine engeneering (transmission parts, crankshafts, cylinder). Lowest working temperature -25 °C.

Equivalent material: AFNOR XC32u, BS 080M30, ISO C35M2, ASTM 1030, DIN Cm30, EN 1.1179, ISO C30R, ASTM A29 Grade 1030, ASTM A510 Grade 1030, ASTM A576 Grade 1030, ASTM A827 Grade 1030, ASTM A830 Grade 1030, UNS G10300, SAE 1030, DIN 1.1179, DIN C30R, AISI 1030, ISO C30M2

EN 10083-1 Grade C30R quenched and tempered (+QT) general

Property Temperature Value
Density 20.0 °C Density of 7.82 - 7.85 g/cm³

EN 10083-1 Grade C30R quenched and tempered (+QT) thermal

Property Temperature Value Comment
Coefficient of thermal expansion -100.0 °C Coefficient of thermal expansion of 1.08E-5 1/K -
- 20.0 °C Coefficient of thermal expansion of 1.19E-5 1/K -
- 100.0 °C Coefficient of thermal expansion of 1.11E-5 - 1.25E-5 1/K -
- 200.0 °C Coefficient of thermal expansion of 1.21E-5 - 1.3E-5 1/K -
- 300.0 °C Coefficient of thermal expansion of 1.29E-5 - 1.36E-5 1/K -
- 400.0 °C Coefficient of thermal expansion of 1.35E-5 - 1.41E-5 1/K -
- 500.0 °C Coefficient of thermal expansion of 1.45E-5 1/K -
- 600.0 °C Coefficient of thermal expansion of 1.49E-5 1/K -
Max service temperature - Max service temperature of 500 °C Typical for Carbon Steel
Max service temperature, long - Max service temperature, long of -25 - 0 °C -
Melting point - Melting point of 1380 - 1514 °C Typical for Medium Carbon Steel
Specific heat capacity -100.0 °C Specific heat capacity of 423 J/(kg·K) -
- 20.0 °C Specific heat capacity of 460 - 461 J/(kg·K) -
- 100.0 °C Specific heat capacity of 479 - 480 J/(kg·K) -
- 200.0 °C Specific heat capacity of 499 - 520 J/(kg·K) -
- 300.0 °C Specific heat capacity of 517 J/(kg·K) -
- 400.0 °C Specific heat capacity of 536 - 610 J/(kg·K) -
- 500.0 °C Specific heat capacity of 558 J/(kg·K) -
- 600.0 °C Specific heat capacity of 587 J/(kg·K) -
Thermal conductivity 20.0 °C Thermal conductivity of 48 - 50 W/(m·K) -
- 100.0 °C Thermal conductivity of 48.9 - 51 W/(m·K) -
- 200.0 °C Thermal conductivity of 47.5 - 48.2 W/(m·K) -
- 300.0 °C Thermal conductivity of 44.7 - 45.6 W/(m·K) -
- 400.0 °C Thermal conductivity of 41.6 W/(m·K) -
- 500.0 °C Thermal conductivity of 38.6 W/(m·K) -
- 600.0 °C Thermal conductivity of 35.5 W/(m·K) -
Thermal diffusivity 20.0 °C Thermal diffusivity of 13.3 mm²/s -
- 100.0 °C Thermal diffusivity of 12.6 mm²/s -
- 200.0 °C Thermal diffusivity of 11.5 mm²/s -
- 300.0 °C Thermal diffusivity of 10.2 mm²/s -
- 400.0 °C Thermal diffusivity of 8.9 mm²/s -
- 500.0 °C Thermal diffusivity of 7.5 mm²/s -
- 600.0 °C Thermal diffusivity of 6 mm²/s -

EN 10083-1 Grade C30R quenched and tempered (+QT) chemical

Property Value
Carbon Carbon of 0.27 - 0.34 %
Chromium Chromium of 0.4 %
Copper Copper of 0.3 %
Manganese Manganese of 0.5 - 0.8 %
Molybdenum Molybdenum of 0.1 %
Nickel Nickel of 0.4 %
Phosphorus Phosphorus of 0.03 - 0.04 %
Silicon Silicon of 0.1 - 0.4 %
Sulfur Sulfur of 0.02 - 0.04 %

EN 10083-1 Grade C30R quenched and tempered (+QT) electrical

Property Temperature Value
Electrical resistivity 20.0 °C Electrical resistivity of 1.2E-7 - 2.17E-7 Ω·m
- 100.0 °C Electrical resistivity of 2.62E-7 Ω·m
- 200.0 °C Electrical resistivity of 3.32E-7 Ω·m
- 300.0 °C Electrical resistivity of 4.2E-7 Ω·m
- 400.0 °C Electrical resistivity of 5.23E-7 Ω·m
- 500.0 °C Electrical resistivity of 6.41E-7 Ω·m
- 600.0 °C Electrical resistivity of 7.8E-7 Ω·m

EN 10083-1 Grade C30R quenched and tempered (+QT) mechanical

Property Temperature Value Comment
Elastic modulus -100.0 °C Elastic modulus of 217 GPa -
- 20.0 °C Elastic modulus of 210 - 212 GPa -
- 100.0 °C Elastic modulus of 205 - 207 GPa -
- 200.0 °C Elastic modulus of 195 - 199 GPa -
- 300.0 °C Elastic modulus of 185 - 192 GPa -
- 400.0 °C Elastic modulus of 175 - 184 GPa -
- 500.0 °C Elastic modulus of 175 GPa -
- 600.0 °C Elastic modulus of 164 GPa -
Elongation 20.0 °C Elongation of 18 - 21 % -
Poisson's ratio 23.0 °C Poisson's ratio of 0.29 [-] Typical for Medium Carbon Steel
Reduction of area 20.0 °C Reduction of area of 40 - 50 % -
Shear modulus 20.0 °C Shear modulus of 81 GPa -
Tensile strength 20.0 °C Tensile strength of 500 - 750 MPa -
Yield strength 20.0 °C Yield strength of 300 - 400 MPa -

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