DIN 17210 Grade 20Cr4 soft annealed (+A)

DIN 17210 Grade 20Cr4 soft annealed (+A)

DIN 17210 Grade 20Cr4 soft annealed (+A) introduction

The steel 20 Cr 4 is used for high wear loaded parts in the vehicle and mechanical engineering (e.g. camshafts, piston pins, cylinder).
The lowest application amounts to -25 °C, the best application up to 25 mm nominal size.

Equivalent material: GB 20Cr, GB 20CrH, ISO 20Cr4, DIN 1.7027, JIS SCr420M, JIS SCr420TK, JIS SCr420HRCH, JIS SCr420RCH, JIS SCr420WCH, JIS SCr22H, JIS SCr420H, JIS SCr420, JIS 20Cr4, EN 20Cr4, EN 1.7027

DIN 17210 Grade 20Cr4 soft annealed (+A) general

Property Temperature Value
Density 20.0 °C Density of 7.83 - 7.85 g/cm³

DIN 17210 Grade 20Cr4 soft annealed (+A) thermal

Property Temperature Value Comment
Coefficient of thermal expansion -100.0 °C Coefficient of thermal expansion of 1.05E-5 1/K -
- 20.0 °C Coefficient of thermal expansion of 1.15E-5 1/K -
- 100.0 °C Coefficient of thermal expansion of 1.1E-5 - 1.21E-5 1/K -
- 200.0 °C Coefficient of thermal expansion of 1.12E-5 - 1.27E-5 1/K -
- 300.0 °C Coefficient of thermal expansion of 1.25E-5 - 1.32E-5 1/K -
- 400.0 °C Coefficient of thermal expansion of 1.36E-5 1/K -
- 500.0 °C Coefficient of thermal expansion of 1.4E-5 1/K -
- 600.0 °C Coefficient of thermal expansion of 1.44E-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 - 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 44 - 45.1 W/(m·K) -
- 100.0 °C Thermal conductivity of 41.9 - 45.1 W/(m·K) -
- 200.0 °C Thermal conductivity of 39.8 - 44.1 W/(m·K) -
- 300.0 °C Thermal conductivity of 41.9 W/(m·K) -
- 400.0 °C Thermal conductivity of 39.4 W/(m·K) -
- 500.0 °C Thermal conductivity of 36.9 W/(m·K) -
- 600.0 °C Thermal conductivity of 34.4 W/(m·K) -
Thermal diffusivity 20.0 °C Thermal diffusivity of 12.5 mm²/s -
- 100.0 °C Thermal diffusivity of 11.6 mm²/s -
- 200.0 °C Thermal diffusivity of 10.6 mm²/s -
- 300.0 °C Thermal diffusivity of 9.5 mm²/s -
- 400.0 °C Thermal diffusivity of 8.4 mm²/s -
- 500.0 °C Thermal diffusivity of 7.1 mm²/s -
- 600.0 °C Thermal diffusivity of 5.8 mm²/s -

DIN 17210 Grade 20Cr4 soft annealed (+A) chemical

Property Value
Carbon Carbon of 0.17 - 0.23 %
Chromium Chromium of 0.9 - 1.2 %
Manganese Manganese of 0.6 - 0.9 %
Phosphorus Phosphorus of 0.04 %
Silicon Silicon of 0.4 %
Sulfur Sulfur of 0.035 %

DIN 17210 Grade 20Cr4 soft annealed (+A) electrical

Property Temperature Value
Electrical resistivity 20.0 °C Electrical resistivity of 1.6E-7 - 2.31E-7 Ω·m
- 100.0 °C Electrical resistivity of 2.84E-7 Ω·m
- 200.0 °C Electrical resistivity of 3.58E-7 Ω·m
- 300.0 °C Electrical resistivity of 4.48E-7 Ω·m
- 400.0 °C Electrical resistivity of 5.52E-7 Ω·m
- 500.0 °C Electrical resistivity of 6.71E-7 Ω·m
- 600.0 °C Electrical resistivity of 8.06E-7 Ω·m

DIN 17210 Grade 20Cr4 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 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 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

Trust our expertise to deliver precision-engineered steel solutions that meet the highest industry standards.

-- Our promise

Similar or equivalent steel materials

Get a quote

Post Categories