DIN 17210 Grade Cm15 soft annealed (+A)

DIN 17210 Grade Cm15 soft annealed (+A)

DIN 17210 Grade Cm15 soft annealed (+A) introduction

The steel Cm 15 is used for wear loaded parts with higher core strength in the vehicle and mechanical engineering (e.g. levers, joints, gears). Because of the S-content the steel has a better machinability.
The lowest application amounts to -25 °C, the best application from 5 to 10 mm nominal size.

Equivalent material: NBN C16-3, ISO C15M2, DIN C15R, DIN 1.1140, AFNOR C15R, AISI 1015, SAE 1015, EN C15R, EN 1.1140, ISO C15R, ASTM M1015, ASTM Grade 1015, UNS G10150

DIN 17210 Grade Cm15 soft annealed (+A) general

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

DIN 17210 Grade Cm15 soft annealed (+A) 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 1.1E-5 - 1.25E-5 1/K -
- 200.0 °C Coefficient of thermal expansion of 1.18E-5 - 1.3E-5 1/K -
- 300.0 °C Coefficient of thermal expansion of 1.36E-5 1/K -
- 400.0 °C Coefficient of thermal expansion of 1.32E-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 1480 - 1526 °C Typical for Low 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 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 57.5 - 58.7 W/(m·K) -
- 100.0 °C Thermal conductivity of 54.4 - 55.7 W/(m·K) -
- 200.0 °C Thermal conductivity of 50.2 - 51.9 W/(m·K) -
- 300.0 °C Thermal conductivity of 47.6 W/(m·K) -
- 400.0 °C Thermal conductivity of 43.4 - 44 W/(m·K) -
- 500.0 °C Thermal conductivity of 39.6 W/(m·K) -
- 600.0 °C Thermal conductivity of 36 W/(m·K) -
Thermal diffusivity 20.0 °C Thermal diffusivity of 15.9 mm²/s -
- 100.0 °C Thermal diffusivity of 14.3 mm²/s -
- 200.0 °C Thermal diffusivity of 12.5 mm²/s -
- 300.0 °C Thermal diffusivity of 10.8 mm²/s -
- 400.0 °C Thermal diffusivity of 9.2 mm²/s -
- 500.0 °C Thermal diffusivity of 7.6 mm²/s -
- 600.0 °C Thermal diffusivity of 6.1 mm²/s -

DIN 17210 Grade Cm15 soft annealed (+A) chemical

Property Value
Carbon Carbon of 0.12 - 0.18 %
Manganese Manganese of 0.3 - 0.6 %
Phosphorus Phosphorus of 0.04 %
Silicon Silicon of 0.4 %
Sulfur Sulfur of 0.02 - 0.035 %

DIN 17210 Grade Cm15 soft annealed (+A) magnetic

Property Value Comment
Curie temperature Curie temperature of 770 °C Typical for Low Carbon Steel

DIN 17210 Grade Cm15 soft annealed (+A) electrical

Property Temperature Value
Electrical resistivity 20.0 °C Electrical resistivity of 1.1E-7 Ω·m
- 100.0 °C Electrical resistivity of 2.3E-7 Ω·m
- 200.0 °C Electrical resistivity of 3.04E-7 Ω·m
- 300.0 °C Electrical resistivity of 3.94E-7 Ω·m
- 400.0 °C Electrical resistivity of 5.01E-7 Ω·m
- 500.0 °C Electrical resistivity of 6.25E-7 Ω·m
- 600.0 °C Electrical resistivity of 7.7E-7 Ω·m

DIN 17210 Grade Cm15 soft annealed (+A) 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 193 - 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
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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