SEW 400 Grade X1NiCrMoCuN31-27-4 quenched (+Q)
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SEW 400 Grade X1NiCrMoCuN31-27-4 quenched (+Q)

SEW 400 Grade X1NiCrMoCuN31-27-4 quenched (+Q) introduction

Properties:
- due to the low C-content, very good resistant to intergranular corrosion also in the welded condition to 400 °C
- resistant to chloride containing media, oxidising and reducing acids (contaminated inclusively)
- by the copper content the application is very well possible in sulfur-sour media
- by the high Ni-content excellently resistant to chloride-induced crack corrosion
Application:
- for particularly critical applications in the chemical industry during that sulfur and phosphoric acid production
- in the marine engineering (seawater desalination) as well as tubing material for transport sour gases

Equivalent material: EN X1NiCrMoCu31-27-4, DIN 1.4563, AFNOR Z2NCDU31-27, EN 1.4563

SEW 400 Grade X1NiCrMoCuN31-27-4 quenched (+Q) general

Property Temperature Value
Density 20.0 °C Density of 8 - 8.08 g/cm³

SEW 400 Grade X1NiCrMoCuN31-27-4 quenched (+Q) thermal

Property Temperature Value Comment
Coefficient of thermal expansion 100.0 °C Coefficient of thermal expansion of 1.51E-5 - 1.58E-5 1/K -
- 200.0 °C Coefficient of thermal expansion of 1.55E-5 - 1.61E-5 1/K -
- 300.0 °C Coefficient of thermal expansion of 1.58E-5 - 1.65E-5 1/K -
- 400.0 °C Coefficient of thermal expansion of 1.62E-5 - 1.69E-5 1/K -
- 500.0 °C Coefficient of thermal expansion of 1.66E-5 - 1.73E-5 1/K -
Melting point - Melting point of 1230 - 1480 °C Typical for Austenitic Stainless Steel
Specific heat capacity 20.0 °C Specific heat capacity of 450 - 452 J/(kg·K) -
- 100.0 °C Specific heat capacity of 463 J/(kg·K) -
- 200.0 °C Specific heat capacity of 474 J/(kg·K) -
- 300.0 °C Specific heat capacity of 483 J/(kg·K) -
- 400.0 °C Specific heat capacity of 491 J/(kg·K) -
- 500.0 °C Specific heat capacity of 500 J/(kg·K) -
Thermal conductivity 20.0 °C Thermal conductivity of 11.7 - 12 W/(m·K) -
- 100.0 °C Thermal conductivity of 13.2 W/(m·K) -
- 200.0 °C Thermal conductivity of 15 W/(m·K) -
- 300.0 °C Thermal conductivity of 16.8 W/(m·K) -
- 400.0 °C Thermal conductivity of 18.5 W/(m·K) -
- 500.0 °C Thermal conductivity of 20.2 W/(m·K) -
Thermal diffusivity 20.0 °C Thermal diffusivity of 3.2 mm²/s -
- 100.0 °C Thermal diffusivity of 3.5 mm²/s -
- 200.0 °C Thermal diffusivity of 3.8 mm²/s -
- 300.0 °C Thermal diffusivity of 4.1 mm²/s -
- 400.0 °C Thermal diffusivity of 4.5 mm²/s -
- 500.0 °C Thermal diffusivity of 4.8 mm²/s -

SEW 400 Grade X1NiCrMoCuN31-27-4 quenched (+Q) chemical

Property Value
Carbon Carbon of 0.02 %
Chromium Chromium of 26 - 28 %
Copper Copper of 0.8 - 1.5 %
Manganese Manganese of 2 %
Molybdenum Molybdenum of 3 - 4 %
Nickel Nickel of 30 - 32 %
Nitrogen Nitrogen of 0.04 - 0.15 %
Phosphorus Phosphorus of 0.02 %
Silicon Silicon of 0.7 %
Sulfur Sulfur of 0.015 %

SEW 400 Grade X1NiCrMoCuN31-27-4 quenched (+Q) electrical

Property Temperature Value
Electrical resistivity 20.0 °C Electrical resistivity of 1E-6 - 1.04E-6 Ω·m
- 100.0 °C Electrical resistivity of 1.07E-6 Ω·m
- 200.0 °C Electrical resistivity of 1.1E-6 Ω·m
- 300.0 °C Electrical resistivity of 1.13E-6 Ω·m
- 400.0 °C Electrical resistivity of 1.16E-6 Ω·m
- 500.0 °C Electrical resistivity of 1.18E-6 Ω·m

SEW 400 Grade X1NiCrMoCuN31-27-4 quenched (+Q) mechanical

Property Temperature Value Comment
Elastic modulus 20.0 °C Elastic modulus of 191 - 198 GPa -
- 100.0 °C Elastic modulus of 186 - 193 GPa -
- 200.0 °C Elastic modulus of 179 - 183 GPa -
- 300.0 °C Elastic modulus of 172 - 175 GPa -
- 400.0 °C Elastic modulus of 166 - 172 GPa -
- 500.0 °C Elastic modulus of 159 GPa -
Elongation 20.0 °C Elongation of 40 % -
Elongation, transverse 20.0 °C Elongation, transverse of 35 % -
Poisson's ratio 23.0 °C Poisson's ratio of 0.3 [-] Typical for Austenitic Stainless Steel
Shear modulus 23.0 °C Shear modulus of 77 GPa Typical for Austenitic Stainless Steel
Tensile strength 20.0 °C Tensile strength of 500 - 700 MPa -
Tensile strength, transverse 20.0 °C Tensile strength, transverse of 500 - 700 MPa -
Yield strength Rp0.2 20.0 °C Yield strength Rp0.2 of 215 MPa -
- 50.0 °C Yield strength Rp0.2 of 200 MPa -
- 100.0 °C Yield strength Rp0.2 of 190 MPa -
- 150.0 °C Yield strength Rp0.2 of 175 MPa -
- 200.0 °C Yield strength Rp0.2 of 160 MPa -
- 250.0 °C Yield strength Rp0.2 of 155 MPa -
- 300.0 °C Yield strength Rp0.2 of 150 MPa -
- 350.0 °C Yield strength Rp0.2 of 145 MPa -
- 400.0 °C Yield strength Rp0.2 of 135 MPa -
- 450.0 °C Yield strength Rp0.2 of 125 MPa -
- 500.0 °C Yield strength Rp0.2 of 120 MPa -
- 550.0 °C Yield strength Rp0.2 of 115 MPa -
Yield strength Rp0.2, transverse 20.0 °C Yield strength Rp0.2, transverse of 215 MPa -
Yield strength Rp1.0 20.0 °C Yield strength Rp1.0 of 245 MPa -
- 50.0 °C Yield strength Rp1.0 of 230 MPa -
- 100.0 °C Yield strength Rp1.0 of 220 MPa -
- 150.0 °C Yield strength Rp1.0 of 205 MPa -
- 200.0 °C Yield strength Rp1.0 of 190 MPa -
- 250.0 °C Yield strength Rp1.0 of 185 MPa -
- 300.0 °C Yield strength Rp1.0 of 180 MPa -
- 350.0 °C Yield strength Rp1.0 of 175 MPa -
- 400.0 °C Yield strength Rp1.0 of 165 MPa -
- 450.0 °C Yield strength Rp1.0 of 155 MPa -
- 500.0 °C Yield strength Rp1.0 of 150 MPa -
- 550.0 °C Yield strength Rp1.0 of 145 MPa -
Yield strength Rp1.0, transverse 20.0 °C Yield strength Rp1.0, transverse of 245 MPa -

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