EN 10217-7 Grade X1NiCrMoCu31-27-4 solution annealed (+AT)

EN 10217-7 Grade X1NiCrMoCu31-27-4 solution annealed (+AT) introduction

The austenitic steel X1NiCrMoCu31-27-4 is available in the solution annealed condition. Welded circular tubes of this steel are used for compression load and for corrosive load at room temperature, low temperatures and elevated temperatures. The material is resistant to intercrystalline corrosion (up to 400 °C) also in the welded condition.

Equivalent material: UNS N08028, DIN X1NiCrMoCuN31-27-4, DIN 1.4563, AFNOR Z2NCDU31-27, EN 1.4563

EN 10217-7 Grade X1NiCrMoCu31-27-4 solution annealed (+AT) general

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

EN 10217-7 Grade X1NiCrMoCu31-27-4 solution annealed (+AT) 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 -

EN 10217-7 Grade X1NiCrMoCu31-27-4 solution annealed (+AT) chemical

Property Value
Carbon Carbon of 0.02 %
Chromium Chromium of 26 - 28 %
Copper Copper of 0.7 - 1.5 %
Manganese Manganese of 2 %
Molybdenum Molybdenum of 3 - 4 %
Nickel Nickel of 30 - 32 %
Nitrogen Nitrogen of 0.11 %
Phosphorus Phosphorus of 0.03 %
Silicon Silicon of 0.7 %
Sulfur Sulfur of 0.01 %

EN 10217-7 Grade X1NiCrMoCu31-27-4 solution annealed (+AT) 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

EN 10217-7 Grade X1NiCrMoCu31-27-4 solution annealed (+AT) mechanical

Property Temperature Value Comment
Elastic modulus 20.0 °C Elastic modulus of 191 - 195 GPa -
- 100.0 °C Elastic modulus of 186 - 190 GPa -
- 200.0 °C Elastic modulus of 179 - 182 GPa -
- 300.0 °C Elastic modulus of 172 - 174 GPa -
- 400.0 °C Elastic modulus of 166 GPa -
- 500.0 °C Elastic modulus of 158 - 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 - 750 MPa -
Tensile strength, transverse 20.0 °C Tensile strength, transverse of 500 - 750 MPa -
Yield strength Rp0.2 20.0 °C Yield strength Rp0.2 of 215 MPa -
- 50.0 °C Yield strength Rp0.2 of 210 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 240 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 146 MPa -

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