EN 10222-2 Grade 14MoV6-3 normalized and tempered (+NT)

EN 10222-2 Grade 14MoV6-3 normalized and tempered (+NT) introduction

The high temperature material 14MoV6-3, material number 1.7715, is used in pressure vessel construction. It is owing to its good high-temperature strength properties favorable at high pressures in a temperature range from 500 to 560 °C. Application for welded collars and flanges.

Equivalent material: IS 14Cr2Mo6V3, IS 4(IS9683), IS 4, DIN 1.7715, DIN 14MoV6-3, AFNOR 14 DCV 6, BS 1503-660-440, UNE 13MoCrV6, EN 1.7715, ASTM Grade P24

EN 10222-2 Grade 14MoV6-3 normalized and tempered (+NT) general

Property Temperature Value
Density 20.0 °C Density of 7.84 g/cm³
- 50.0 °C Density of 7.84 g/cm³
- 100.0 °C Density of 7.82 g/cm³
- 150.0 °C Density of 7.81 g/cm³
- 200.0 °C Density of 7.79 g/cm³
- 250.0 °C Density of 7.78 g/cm³
- 300.0 °C Density of 7.76 g/cm³
- 350.0 °C Density of 7.74 g/cm³
- 400.0 °C Density of 7.72 g/cm³
- 450.0 °C Density of 7.71 g/cm³
- 500.0 °C Density of 7.69 g/cm³
- 550.0 °C Density of 7.67 g/cm³
- 600.0 °C Density of 7.65 g/cm³

EN 10222-2 Grade 14MoV6-3 normalized and tempered (+NT) 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 400 - 550 °C -
Melting point - Melting point of 1382 - 1529 °C Typical for 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 46.3 W/(m·K) -
- 100.0 °C Thermal conductivity of 47.1 W/(m·K) -
- 200.0 °C Thermal conductivity of 46.2 W/(m·K) -
- 300.0 °C Thermal conductivity of 44.1 W/(m·K) -
- 400.0 °C Thermal conductivity of 41.3 W/(m·K) -
- 500.0 °C Thermal conductivity of 38.6 W/(m·K) -
- 600.0 °C Thermal conductivity of 35.9 W/(m·K) -
Thermal diffusivity 20.0 °C Thermal diffusivity of 12.8 mm²/s -
- 100.0 °C Thermal diffusivity of 12.1 mm²/s -
- 200.0 °C Thermal diffusivity of 11.1 mm²/s -
- 300.0 °C Thermal diffusivity of 10 mm²/s -
- 400.0 °C Thermal diffusivity of 8.8 mm²/s -
- 500.0 °C Thermal diffusivity of 7.4 mm²/s -
- 600.0 °C Thermal diffusivity of 4.7 mm²/s -

EN 10222-2 Grade 14MoV6-3 normalized and tempered (+NT) chemical

Property Value
Aluminium Aluminium of 0.02 %
Carbon Carbon of 0.1 - 0.18 %
Chromium Chromium of 0.3 - 0.6 %
Manganese Manganese of 0.4 - 0.7 %
Molybdenum Molybdenum of 0.5 - 0.7 %
Phosphorus Phosphorus of 0.03 %
Silicon Silicon of 0.4 %
Sulfur Sulfur of 0.01 - 0.015 %
Tin Tin of 0.03 %
Vanadium Vanadium of 0.22 - 0.28 %

EN 10222-2 Grade 14MoV6-3 normalized and tempered (+NT) electrical

Property Temperature Value
Electrical resistivity 20.0 °C Electrical resistivity of 2.25E-7 Ω·m
- 50.0 °C Electrical resistivity of 2.41E-7 Ω·m
- 100.0 °C Electrical resistivity of 2.72E-7 Ω·m
- 150.0 °C Electrical resistivity of 3.04E-7 Ω·m
- 200.0 °C Electrical resistivity of 3.42E-7 Ω·m
- 250.0 °C Electrical resistivity of 3.83E-7 Ω·m
- 300.0 °C Electrical resistivity of 4.26E-7 Ω·m
- 350.0 °C Electrical resistivity of 4.74E-7 Ω·m
- 400.0 °C Electrical resistivity of 5.26E-7 Ω·m
- 450.0 °C Electrical resistivity of 5.83E-7 Ω·m
- 500.0 °C Electrical resistivity of 6.4E-7 Ω·m
- 550.0 °C Electrical resistivity of 7.04E-7 Ω·m
- 600.0 °C Electrical resistivity of 7.73E-7 Ω·m

EN 10222-2 Grade 14MoV6-3 normalized and tempered (+NT) mechanical

Property Temperature Value
Elastic modulus -100.0 °C Elastic modulus of 217 GPa
- 20.0 °C Elastic modulus of 212 - 212.78 GPa
- 50.0 °C Elastic modulus of 211.5 GPa
- 100.0 °C Elastic modulus of 207 - 208.66 GPa
- 150.0 °C Elastic modulus of 205.23 GPa
- 200.0 °C Elastic modulus of 199 - 201.6 GPa
- 250.0 °C Elastic modulus of 197.77 GPa
- 300.0 °C Elastic modulus of 192 - 193.94 GPa
- 350.0 °C Elastic modulus of 189.92 GPa
- 400.0 °C Elastic modulus of 184 - 186.1 GPa
- 450.0 °C Elastic modulus of 181.98 GPa
- 500.0 °C Elastic modulus of 175 - 177.86 GPa
- 550.0 °C Elastic modulus of 173.74 GPa
- 600.0 °C Elastic modulus of 164 - 169.42 GPa
Elongation 20.0 °C Elongation of 18 - 20 %
Poisson's ratio 20.0 °C Poisson's ratio of 0.29 [-]
- 50.0 °C Poisson's ratio of 0.29 [-]
- 100.0 °C Poisson's ratio of 0.28 [-]
- 150.0 °C Poisson's ratio of 0.29 [-]
- 200.0 °C Poisson's ratio of 0.29 [-]
- 250.0 °C Poisson's ratio of 0.29 [-]
- 300.0 °C Poisson's ratio of 0.3 [-]
- 350.0 °C Poisson's ratio of 0.3 [-]
- 400.0 °C Poisson's ratio of 0.3 [-]
- 450.0 °C Poisson's ratio of 0.31 [-]
- 500.0 °C Poisson's ratio of 0.31 [-]
- 550.0 °C Poisson's ratio of 0.32 [-]
- 600.0 °C Poisson's ratio of 0.32 [-]
Shear modulus 20.0 °C Shear modulus of 82.8 GPa
- 50.0 °C Shear modulus of 82.31 GPa
- 100.0 °C Shear modulus of 81.23 GPa
- 150.0 °C Shear modulus of 79.76 GPa
- 200.0 °C Shear modulus of 78.28 GPa
- 250.0 °C Shear modulus of 76.62 GPa
- 300.0 °C Shear modulus of 74.85 GPa
- 350.0 °C Shear modulus of 73.18 GPa
- 400.0 °C Shear modulus of 71.42 GPa
- 450.0 °C Shear modulus of 69.65 GPa
- 500.0 °C Shear modulus of 67.79 GPa
- 550.0 °C Shear modulus of 66.02 GPa
- 600.0 °C Shear modulus of 64.16 GPa
Tensile strength 20.0 °C Tensile strength of 460 - 610 MPa
Yield strength 20.0 °C Yield strength of 300 MPa
Yield strength Rp0.2 20.0 °C Yield strength Rp0.2 of 290 MPa

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