DIN 17200 Grade 38Cr2 treated for cold shearing (+S)
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DIN 17200 Grade 38Cr2 treated for cold shearing (+S)

DIN 17200 Grade 38Cr2 treated for cold shearing (+S) introduction

Steel 38 Cr 2 is suitable for a little higher strained parts of lower dimension in vehicle manufacturing, engine and machine engineering (e.g. transmission parts, axles, shafts). Lowest application temp. -25 °C.

Equivalent material: NBN 38Cr2, AFNOR 38C2, BS 128M36, UNI 38Cr2, DIN 1.7003, AFNOR 38Cr2, BS 38Cr2, AISI 5140, SAE 5140, EN 38Cr2, EN 1.7003, ISO 37Cr2E, UNS G51400

DIN 17200 Grade 38Cr2 treated for cold shearing (+S) general

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

DIN 17200 Grade 38Cr2 treated for cold shearing (+S) 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, long - Max service temperature, long of -25 - 0 °C -
Melting point - Melting point of 1382 - 1529 °C Typical for Chromium 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 44.9 - 50 W/(m·K) -
- 100.0 °C Thermal conductivity of 46.2 W/(m·K) -
- 200.0 °C Thermal conductivity of 45.5 W/(m·K) -
- 300.0 °C Thermal conductivity of 43.1 W/(m·K) -
- 400.0 °C Thermal conductivity of 40.4 W/(m·K) -
- 500.0 °C Thermal conductivity of 37.7 W/(m·K) -
- 600.0 °C Thermal conductivity of 34.9 W/(m·K) -
Thermal diffusivity 20.0 °C Thermal diffusivity of 12.5 mm²/s -
- 100.0 °C Thermal diffusivity of 12 mm²/s -
- 200.0 °C Thermal diffusivity of 11 mm²/s -
- 300.0 °C Thermal diffusivity of 9.8 mm²/s -
- 400.0 °C Thermal diffusivity of 8.6 mm²/s -
- 500.0 °C Thermal diffusivity of 7.3 mm²/s -
- 600.0 °C Thermal diffusivity of 5.9 mm²/s -

DIN 17200 Grade 38Cr2 treated for cold shearing (+S) chemical

Property Value
Carbon Carbon of 0.35 - 0.42 %
Chromium Chromium of 0.4 - 0.6 %
Manganese Manganese of 0.5 - 0.8 %
Phosphorus Phosphorus of 0.04 %
Silicon Silicon of 0.4 %
Sulfur Sulfur of 0.03 %

DIN 17200 Grade 38Cr2 treated for cold shearing (+S) electrical

Property Temperature Value
Electrical resistivity 20.0 °C Electrical resistivity of 1.9E-7 - 2.32E-7 Ω·m
- 100.0 °C Electrical resistivity of 2.77E-7 Ω·m
- 200.0 °C Electrical resistivity of 3.47E-7 Ω·m
- 300.0 °C Electrical resistivity of 4.35E-7 Ω·m
- 400.0 °C Electrical resistivity of 5.38E-7 Ω·m
- 500.0 °C Electrical resistivity of 6.56E-7 Ω·m
- 600.0 °C Electrical resistivity of 7.95E-7 Ω·m

DIN 17200 Grade 38Cr2 treated for cold shearing (+S) mechanical

Property Temperature Value
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, Brinell 20.0 °C Hardness, Brinell of 255 [-]
Poisson's ratio 20.0 °C Poisson's ratio of 0.28 [-]
Shear modulus 20.0 °C Shear modulus of 81 GPa

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