SEW 400 Grade X4CrNiMo16-5 quenched and tempered (+QT1)
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SEW 400 Grade X4CrNiMo16-5 quenched and tempered (+QT1)

SEW 400 Grade X4CrNiMo16-5 quenched and tempered (+QT1) introduction

Properties:
- martensitic stainless steel
- good corrosion resistance and very low-temperature toughness to -200 °C
- possesses a high corrosion resistance, in particular to water, weak acids and brine, oxidising acids (nitric acid) and weakly chloride containing media
Application:
- for mechanical engineering for pumps, armatures, compressors, in shipbuilding

Equivalent material: EN X4CrNiMo16-5-1, DIN 1.4418, DIN X4CrNiMo16-5-1, AFNOR Z6CND16-05-01, SS 2387, EN 1.4418

SEW 400 Grade X4CrNiMo16-5 quenched and tempered (+QT1) general

Property Temperature Value
Density 20.0 °C Density of 7.56 - 7.7 g/cm³

SEW 400 Grade X4CrNiMo16-5 quenched and tempered (+QT1) thermal

Property Temperature Value Comment
Coefficient of thermal expansion 20.0 °C Coefficient of thermal expansion of 9.9E-6 1/K -
- 100.0 °C Coefficient of thermal expansion of 1.03E-5 1/K -
- 200.0 °C Coefficient of thermal expansion of 1.08E-5 1/K -
- 300.0 °C Coefficient of thermal expansion of 1.12E-5 1/K -
- 400.0 °C Coefficient of thermal expansion of 1.16E-5 1/K -
- 500.0 °C Coefficient of thermal expansion of 1.19E-5 1/K -
- 600.0 °C Coefficient of thermal expansion of 1.21E-5 1/K -
- 700.0 °C Coefficient of thermal expansion of 1.24E-5 1/K -
- 800.0 °C Coefficient of thermal expansion of 1.29E-5 1/K -
Max service temperature, long - Max service temperature, long of -200 - 0 °C -
Melting point - Melting point of 1370 - 1530 °C Typical for Martensitic Stainless Steel
Specific heat capacity 20.0 °C Specific heat capacity of 430 - 450 J/(kg·K) -
- 100.0 °C Specific heat capacity of 482 J/(kg·K) -
- 200.0 °C Specific heat capacity of 506 J/(kg·K) -
- 300.0 °C Specific heat capacity of 525 J/(kg·K) -
- 400.0 °C Specific heat capacity of 547 J/(kg·K) -
- 500.0 °C Specific heat capacity of 576 J/(kg·K) -
- 600.0 °C Specific heat capacity of 616 J/(kg·K) -
Thermal conductivity 20.0 °C Thermal conductivity of 15 - 16 W/(m·K) -
- 100.0 °C Thermal conductivity of 17.2 W/(m·K) -
- 200.0 °C Thermal conductivity of 18.6 W/(m·K) -
- 300.0 °C Thermal conductivity of 20 W/(m·K) -
- 400.0 °C Thermal conductivity of 21.2 W/(m·K) -
- 500.0 °C Thermal conductivity of 22.3 W/(m·K) -
- 600.0 °C Thermal conductivity of 23.3 W/(m·K) -
- 700.0 °C Thermal conductivity of 24.1 W/(m·K) -
- 800.0 °C Thermal conductivity of 25.5 W/(m·K) -
- 900.0 °C Thermal conductivity of 26.9 W/(m·K) -
- 1000.0 °C Thermal conductivity of 28.3 W/(m·K) -
Thermal diffusivity 20.0 °C Thermal diffusivity of 4.7 mm²/s -
- 100.0 °C Thermal diffusivity of 4.5 mm²/s -
- 200.0 °C Thermal diffusivity of 4.5 mm²/s -
- 300.0 °C Thermal diffusivity of 4.6 mm²/s -
- 400.0 °C Thermal diffusivity of 4.4 mm²/s -
- 500.0 °C Thermal diffusivity of 4.1 mm²/s -
- 600.0 °C Thermal diffusivity of 3.6 mm²/s -

SEW 400 Grade X4CrNiMo16-5 quenched and tempered (+QT1) chemical

Property Value
Carbon Carbon of 0.05 %
Chromium Chromium of 15 - 16.5 %
Manganese Manganese of 1.5 %
Molybdenum Molybdenum of 0.8 - 1.5 %
Nickel Nickel of 5 - 6 %
Nitrogen Nitrogen of 0.02 %
Phosphorus Phosphorus of 0.04 %
Silicon Silicon of 1 %
Sulfur Sulfur of 0.015 %

SEW 400 Grade X4CrNiMo16-5 quenched and tempered (+QT1) electrical

Property Temperature Value
Electrical resistivity 20.0 °C Electrical resistivity of 8E-7 - 9.06E-7 Ω·m
- 100.0 °C Electrical resistivity of 9.42E-7 Ω·m
- 200.0 °C Electrical resistivity of 9.87E-7 Ω·m
- 300.0 °C Electrical resistivity of 1.03E-6 Ω·m
- 400.0 °C Electrical resistivity of 1.08E-6 Ω·m
- 500.0 °C Electrical resistivity of 1.12E-6 Ω·m
- 600.0 °C Electrical resistivity of 1.18E-6 Ω·m
- 700.0 °C Electrical resistivity of 1.22E-6 Ω·m
- 800.0 °C Electrical resistivity of 1.24E-6 Ω·m
- 900.0 °C Electrical resistivity of 1.26E-6 Ω·m
- 1000.0 °C Electrical resistivity of 1.27E-6 Ω·m

SEW 400 Grade X4CrNiMo16-5 quenched and tempered (+QT1) mechanical

Property Temperature Value Comment
Elastic modulus 20.0 °C Elastic modulus of 198 - 218 GPa -
- 100.0 °C Elastic modulus of 193 - 213 GPa -
- 200.0 °C Elastic modulus of 183 - 206 GPa -
- 300.0 °C Elastic modulus of 175 - 198 GPa -
- 400.0 °C Elastic modulus of 172 - 190 GPa -
- 500.0 °C Elastic modulus of 159 - 180 GPa -
- 600.0 °C Elastic modulus of 167 GPa -
- 700.0 °C Elastic modulus of 150 GPa -
Elongation 20.0 °C Elongation of 16 % -
Elongation, transverse 20.0 °C Elongation, transverse of 14 % -
Hardness, Brinell 20.0 °C Hardness, Brinell of 260 - 325 [-] -
Poisson's ratio 23.0 °C Poisson's ratio of 0.3 [-] Typical for Martensitic Stainless Steel
Shear modulus 23.0 °C Shear modulus of 77 GPa Typical for Martensitic Stainless Steel
Tensile strength 20.0 °C Tensile strength of 830 - 1030 MPa -
Tensile strength, transverse 20.0 °C Tensile strength, transverse of 830 - 1030 MPa -
Yield strength Rp0.2 20.0 °C Yield strength Rp0.2 of 550 MPa -
- 50.0 °C Yield strength Rp0.2 of 540 MPa -
- 100.0 °C Yield strength Rp0.2 of 530 MPa -
- 150.0 °C Yield strength Rp0.2 of 515 MPa -
- 200.0 °C Yield strength Rp0.2 of 500 MPa -
- 250.0 °C Yield strength Rp0.2 of 490 MPa -
- 300.0 °C Yield strength Rp0.2 of 475 MPa -
Yield strength Rp0.2, transverse 20.0 °C Yield strength Rp0.2, transverse of 550 MPa -

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