EN 10089 Grade 51CrV4 quenched and tempered (+QT)

EN 10089 Grade 51CrV4 quenched and tempered (+QT) introduction

The steel 51CrV4 is used for hot formed springs, like high-stress vehicle leaf springs, spiral springs, torsion springs, coil springs as well as conical springs.
High-temperature strength up to 300 °C (valve springs). Installation strength 1370 to 1720 MPa.

Equivalent material: GB 50CrVA, GB A23503, IS 50Cr4V2, IS 6, ISO 51CrV4, JIS SUP10, KS SPS10, GOST 50ChFA, GOST 50ХФA, GOST 50ChGFA, GOST 50ХГФA, ASTM A689, SAE 6150, UNS G61500, DIN 50CrV4, DIN 1.8159, DIN GS-50CrV4, DIN G51CrV4, DIN 51CrV4, AFNOR 50CrV4, BS 735A50, BS 50CrV4, UNI 50CrV4, SS 2230, AISI 6150, AISI 6150H, SAE 6150H, JIS SUP10M, EN 50CrV4, EN 1.8159, GOST 50HFA, GOST 50HGFA, GB 50CrV4

EN 10089 Grade 51CrV4 quenched and tempered (+QT) general

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

EN 10089 Grade 51CrV4 quenched and tempered (+QT) 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 1.11E-5 - 1.21E-5 1/K -
- 200.0 °C Coefficient of thermal expansion of 1.21E-5 - 1.27E-5 1/K -
- 300.0 °C Coefficient of thermal expansion of 1.29E-5 - 1.32E-5 1/K -
- 400.0 °C Coefficient of thermal expansion of 1.35E-5 - 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 -
Melting point - Melting point of 1382 - 1529 °C Typical for Chromium Vanadium 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 42 - 45.1 W/(m·K) -
- 100.0 °C Thermal conductivity of 45.1 W/(m·K) -
- 200.0 °C Thermal conductivity of 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 -

EN 10089 Grade 51CrV4 quenched and tempered (+QT) chemical

Property Value
Carbon Carbon of 0.47 - 0.55 %
Chromium Chromium of 0.9 - 1.2 %
Manganese Manganese of 0.7 - 1.1 %
Phosphorus Phosphorus of 0.03 %
Silicon Silicon of 0.4 %
Sulfur Sulfur of 0.025 %
Vanadium Vanadium of 0.1 - 0.25 %

EN 10089 Grade 51CrV4 quenched and tempered (+QT) electrical

Property Temperature Value
Electrical resistivity 20.0 °C Electrical resistivity of 1.9E-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

EN 10089 Grade 51CrV4 quenched and tempered (+QT) mechanical

Property Temperature Value
Elastic modulus -100.0 °C Elastic modulus of 217 GPa
- 20.0 °C Elastic modulus of 210 - 212.6 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 184 GPa
- 500.0 °C Elastic modulus of 175 GPa
- 600.0 °C Elastic modulus of 164 GPa
Elongation 20.0 °C Elongation of 6 %
Poisson's ratio 20.0 °C Poisson's ratio of 0.29 [-]
Reduction of area 20.0 °C Reduction of area of 30 %
Shear modulus 20.0 °C Shear modulus of 81 GPa
Tensile strength 20.0 °C Tensile strength of 1350 - 1650 MPa
Yield strength Rp0.2 20.0 °C Yield strength Rp0.2 of 1200 MPa

Join our long list of satisfied customers who trust our legacy of delivering quality steel.

-- Our promise

Similar or equivalent steel materials

Get a quote