ISO 683-1 Grade C50E quenched (+Q)

ISO 683-1 Grade C50E quenched (+Q) introduction

Steel C50E is suitable for larger parts (heavy forged parts) in vehicle manufacturing, engine and machine engineering (e.g. transmission parts, shafts, wheel hubs).
As a bright steel product it is used in the form of bars, bright, straight, in different conditions (see DIN EN 10277).

Equivalent material: GB 50, GB U20502, IS 50C8, ISO C50E, JIS S53C, KS SM53C, GOST 50, ASTM A29 Grade 1049, ASTM A29 Grade 1050, ASTM A510 Grade 1049, ASTM A510 Grade 1050, ASTM A576 Grade 1049, ASTM A576 Grade 1050, ASTM A827 Grade 1050, UNS G10490, UNS G10500, SAE 1050, DIN Ck50, BS 080M50, ISO C50E4, UNI C50, JIS S50C, SS 1674, ASTM 1049, ASTM 1050, DIN 1.1206, DIN C50E, AFNOR C50E, AFNOR XC50, BS En43A, BS C50E, BS 50CS, BS 50HS, BS CS50, AISI 1049, AISI 1050, SAE 1049, EN 1.1206, GB SM50, GB T10500, GB/T 50, GB/T U20502, GB/T SM50, GB/T T10500, ASTM Grade 1050

ISO 683-1 Grade C50E quenched (+Q) general

Property Temperature Value
Density 20.0 °C Density of 7.8 - 7.85 g/cm³

ISO 683-1 Grade C50E quenched (+Q) 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 J/(kg·K) -
- 200.0 °C Specific heat capacity of 499 J/(kg·K) -
- 300.0 °C Specific heat capacity of 517 J/(kg·K) -
- 400.0 °C Specific heat capacity of 536 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 41.7 - 52 W/(m·K) -
- 100.0 °C Thermal conductivity of 43.4 - 50.6 W/(m·K) -
- 200.0 °C Thermal conductivity of 43.2 - 48.1 W/(m·K) -
- 300.0 °C Thermal conductivity of 41.4 - 45.7 W/(m·K) -
- 400.0 °C Thermal conductivity of 39.1 W/(m·K) -
- 500.0 °C Thermal conductivity of 36.7 W/(m·K) -
- 600.0 °C Thermal conductivity of 34.1 W/(m·K) -
Thermal diffusivity 20.0 °C Thermal diffusivity of 11.6 mm²/s -
- 100.0 °C Thermal diffusivity of 11.3 mm²/s -
- 200.0 °C Thermal diffusivity of 10.5 mm²/s -
- 300.0 °C Thermal diffusivity of 9.5 mm²/s -
- 400.0 °C Thermal diffusivity of 8.3 mm²/s -
- 500.0 °C Thermal diffusivity of 7.1 mm²/s -
- 600.0 °C Thermal diffusivity of 5.8 mm²/s -

ISO 683-1 Grade C50E quenched (+Q) chemical

Property Value
Carbon Carbon of 0.47 - 0.55 %
Chromium Chromium of 0.4 %
Manganese Manganese of 0.6 - 0.9 %
Molybdenum Molybdenum of 0.1 %
Nickel Nickel of 0.4 %
Phosphorus Phosphorus of 0.03 %
Silicon Silicon of 0.4 %
Sulfur Sulfur of 0.035 %

ISO 683-1 Grade C50E quenched (+Q) electrical

Property Temperature Value
Electrical resistivity 20.0 °C Electrical resistivity of 1.2E-7 - 2.5E-7 Ω·m
- 100.0 °C Electrical resistivity of 2.95E-7 Ω·m
- 200.0 °C Electrical resistivity of 3.65E-7 Ω·m
- 300.0 °C Electrical resistivity of 4.53E-7 Ω·m
- 400.0 °C Electrical resistivity of 5.56E-7 Ω·m
- 500.0 °C Electrical resistivity of 6.74E-7 Ω·m
- 600.0 °C Electrical resistivity of 8.13E-7 Ω·m

ISO 683-1 Grade C50E quenched (+Q) 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 -
Hardness, Vickers 20.0 °C Hardness, Vickers of 600 [-] -
Poisson's ratio 23.0 °C Poisson's ratio of 0.29 [-] Typical for Medium Carbon Steel
Shear modulus 20.0 °C Shear modulus of 81 GPa -

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