EN 10277-5 Grade 34CrNiMo6 cold drawn or turned and soft annealed

EN 10277-5 Grade 34CrNiMo6 cold drawn or turned and soft annealed introduction

Steel 34 CrNiMo 6 is suitable for high loaded parts (also heavy forged parts) of high heat-treatment sections and favorable ductility qualities in aircraft and heavy-vehicle construction and in machine engineering (e.g. propeller shafts, connecting rods, transmission shafts). Lowest application temp. -40 °C.

Equivalent material: NBN 35CrNiMo, BS 817M40, GOST 38Ch2N2MA, ISO 36CrNiMo6, UNI 35NiCrMo6, JIS SNCM447, PN 34HNM, SS 2541, ASTM 4340, DIN 1.6582, DIN GS-34CrNiMo6, DIN 34CrNiMo6V, DIN 35CrNiMo6, AFNOR 35NCD6, AFNOR 34CrNiMo8, BS 816M40, BS EN24, UNI 35NiCrMo6(KB), UNE F.127, AISI 4340, SAE 4340, JIS SNCM431, EN 34CrNiMo6, EN 34CrNiMo6V, EN 1.6582, ASTM 4337, IS 40Ni2Cr1Mo28

EN 10277-5 Grade 34CrNiMo6 cold drawn or turned and soft annealed general

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

EN 10277-5 Grade 34CrNiMo6 cold drawn or turned and soft annealed 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 1.21E-5 1/K -
- 200.0 °C Coefficient of thermal expansion of 1.27E-5 1/K -
- 300.0 °C Coefficient of thermal expansion of 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 -40 - 0 °C -
Melting point - Melting point of 1382 - 1529 °C Typical for Nickel Chromium Molybdenum Steel
Specific heat capacity -100.0 °C Specific heat capacity of 423 J/(kg·K) -
- 20.0 °C Specific heat capacity of 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 33.7 W/(m·K) -
- 100.0 °C Thermal conductivity of 36.2 W/(m·K) -
- 200.0 °C Thermal conductivity of 37.8 W/(m·K) -
- 300.0 °C Thermal conductivity of 37.2 W/(m·K) -
- 400.0 °C Thermal conductivity of 35.7 W/(m·K) -
- 500.0 °C Thermal conductivity of 34 W/(m·K) -
- 600.0 °C Thermal conductivity of 32 W/(m·K) -
Thermal diffusivity 20.0 °C Thermal diffusivity of 9.4 mm²/s -
- 100.0 °C Thermal diffusivity of 9.4 mm²/s -
- 200.0 °C Thermal diffusivity of 9.2 mm²/s -
- 300.0 °C Thermal diffusivity of 8.5 mm²/s -
- 400.0 °C Thermal diffusivity of 7.6 mm²/s -
- 500.0 °C Thermal diffusivity of 6.6 mm²/s -
- 600.0 °C Thermal diffusivity of 5.4 mm²/s -

EN 10277-5 Grade 34CrNiMo6 cold drawn or turned and soft annealed chemical

Property Value
Carbon Carbon of 0.3 - 0.38 %
Chromium Chromium of 1.4 - 1.7 %
Manganese Manganese of 0.4 - 0.7 %
Molybdenum Molybdenum of 0.15 - 0.3 %
Nickel Nickel of 1.4 - 1.7 %
Phosphorus Phosphorus of 0.04 %
Silicon Silicon of 0.4 %
Sulfur Sulfur of 0.03 %

EN 10277-5 Grade 34CrNiMo6 cold drawn or turned and soft annealed electrical

Property Temperature Value
Electrical resistivity 20.0 °C Electrical resistivity of 3.09E-7 Ω·m
- 100.0 °C Electrical resistivity of 3.54E-7 Ω·m
- 200.0 °C Electrical resistivity of 4.18E-7 Ω·m
- 300.0 °C Electrical resistivity of 5.05E-7 Ω·m
- 400.0 °C Electrical resistivity of 6.09E-7 Ω·m
- 500.0 °C Electrical resistivity of 7.27E-7 Ω·m
- 600.0 °C Electrical resistivity of 8.67E-7 Ω·m

EN 10277-5 Grade 34CrNiMo6 cold drawn or turned and soft annealed mechanical

Property Temperature Value Comment
Elastic modulus -100.0 °C Elastic modulus of 217 GPa -
- 20.0 °C Elastic modulus of 212 GPa -
- 100.0 °C Elastic modulus of 207 GPa -
- 200.0 °C Elastic modulus of 199 GPa -
- 300.0 °C Elastic modulus of 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 -
Hardness, Brinell 20.0 °C Hardness, Brinell of 248 [-] -
Poisson's ratio 23.0 °C Poisson's ratio of 0.29 [-] Typical for Nickel Chromium Molybdenum Steel

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