DIN 17440 Grade X2CrNiMoN17-11-2 quenched (+Q)
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DIN 17440 Grade X2CrNiMoN17-11-2 quenched (+Q)

DIN 17440 Grade X2CrNiMoN17-11-2 quenched (+Q) introduction

The full austenitic steel X2CrNiNoN17-11-2, mat. no. 1.4406, has an higher yield strength and structure stability also at higher temperatures and a better resistance to oxidising media because of the added N. The steel is resistant to intercrystalline and selective corrosion, both in the delivery condition and in the welded condition. According DIN 17440 : 1996-09 the material is used for flat products and rods (for pressure vessels), forgings and wires, acc. DIN 17441 : 1997-02 for cold rolled sheet and slit strip for pressure vessels. The limiting temperature (operating time up to 100000 h
no intercrystalline corrosion) amounts to 400 degrees C.
According to DIN 17440 : 1985-07 (X 2 CrNiMoN 17 12 2) resp. DIN EN 10088-1,-2,-3 : 1995-08 (X2CrNiMoN17-11-2) applies: application in the chemical apparatus construction for pressure vessels, in the cellulose industry, colour industry, cosmetic industry and textile industry, brewerys and milk plants. The material is high polishable.

Equivalent material: SFS X2CrNiMoN17-11-3, ISO 19N, JIS SUS316LN, ÖNORM X2CrNiMoN17-12-2KKW, ASTM 316LN, DIN 1.4406, AFNOR Z3CND17-11Az, BS 316S61, BS 316S13, UNE F.3542, AISI 316LN, SAE 316LN, EN X2CrNiMoN17-11-2, EN 1.4406, UNS S31653

DIN 17440 Grade X2CrNiMoN17-11-2 quenched (+Q) general

Property Temperature Value
Density 20.0 °C Density of 7.96 - 7.98 g/cm³

DIN 17440 Grade X2CrNiMoN17-11-2 quenched (+Q) thermal

Property Temperature Value Comment
Coefficient of thermal expansion -100.0 °C Coefficient of thermal expansion of 1.49E-5 1/K -
- 20.0 °C Coefficient of thermal expansion of 1.61E-5 1/K -
- 100.0 °C Coefficient of thermal expansion of 1.65E-5 - 1.67E-5 1/K -
- 200.0 °C Coefficient of thermal expansion of 1.72E-5 - 1.75E-5 1/K -
- 300.0 °C Coefficient of thermal expansion of 1.75E-5 - 1.77E-5 1/K -
- 400.0 °C Coefficient of thermal expansion of 1.81E-5 - 1.85E-5 1/K -
- 500.0 °C Coefficient of thermal expansion of 1.84E-5 - 1.85E-5 1/K -
- 600.0 °C Coefficient of thermal expansion of 1.88E-5 1/K -
- 700.0 °C Coefficient of thermal expansion of 1.91E-5 1/K -
- 800.0 °C Coefficient of thermal expansion of 1.94E-5 1/K -
- 900.0 °C Coefficient of thermal expansion of 1.97E-5 1/K -
- 1000.0 °C Coefficient of thermal expansion of 2E-5 1/K -
Melting point - Melting point of 1230 - 1480 °C Typical for Austenitic Stainless Steel
Specific heat capacity -100.0 °C Specific heat capacity of 440 J/(kg·K) -
- 20.0 °C Specific heat capacity of 472 - 500 J/(kg·K) -
- 100.0 °C Specific heat capacity of 487 J/(kg·K) -
- 200.0 °C Specific heat capacity of 503 J/(kg·K) -
- 300.0 °C Specific heat capacity of 512 J/(kg·K) -
- 400.0 °C Specific heat capacity of 520 J/(kg·K) -
- 500.0 °C Specific heat capacity of 530 J/(kg·K) -
- 600.0 °C Specific heat capacity of 541 J/(kg·K) -
- 700.0 °C Specific heat capacity of 551 J/(kg·K) -
- 800.0 °C Specific heat capacity of 559 J/(kg·K) -
- 900.0 °C Specific heat capacity of 565 J/(kg·K) -
- 1000.0 °C Specific heat capacity of 571 J/(kg·K) -
Thermal conductivity 20.0 °C Thermal conductivity of 13.3 - 15 W/(m·K) -
- 100.0 °C Thermal conductivity of 14.9 W/(m·K) -
- 200.0 °C Thermal conductivity of 16.5 W/(m·K) -
- 300.0 °C Thermal conductivity of 18.1 W/(m·K) -
- 400.0 °C Thermal conductivity of 19.5 W/(m·K) -
- 500.0 °C Thermal conductivity of 21 W/(m·K) -
- 600.0 °C Thermal conductivity of 22.4 W/(m·K) -
- 700.0 °C Thermal conductivity of 23.8 W/(m·K) -
- 800.0 °C Thermal conductivity of 25.2 W/(m·K) -
Thermal diffusivity 20.0 °C Thermal diffusivity of 3.5 mm²/s -
- 100.0 °C Thermal diffusivity of 3.8 mm²/s -
- 200.0 °C Thermal diffusivity of 4 mm²/s -
- 300.0 °C Thermal diffusivity of 4.3 mm²/s -
- 400.0 °C Thermal diffusivity of 4.5 mm²/s -
- 500.0 °C Thermal diffusivity of 4.7 mm²/s -
- 600.0 °C Thermal diffusivity of 4.8 mm²/s -
- 700.0 °C Thermal diffusivity of 5.1 mm²/s -
- 800.0 °C Thermal diffusivity of 5.4 mm²/s -

DIN 17440 Grade X2CrNiMoN17-11-2 quenched (+Q) chemical

Property Value
Carbon Carbon of 0.03 %
Chromium Chromium of 16.5 - 18.5 %
Manganese Manganese of 2 %
Molybdenum Molybdenum of 2 - 2.5 %
Nickel Nickel of 10 - 12 %
Nitrogen Nitrogen of 0.12 - 0.22 %
Phosphorus Phosphorus of 0.05 %
Silicon Silicon of 1 %
Sulfur Sulfur of 0.015 %

DIN 17440 Grade X2CrNiMoN17-11-2 quenched (+Q) electrical

Property Temperature Value
Electrical resistivity 20.0 °C Electrical resistivity of 7.5E-7 - 7.91E-7 Ω·m
- 100.0 °C Electrical resistivity of 8.45E-7 Ω·m
- 200.0 °C Electrical resistivity of 9.19E-7 Ω·m
- 300.0 °C Electrical resistivity of 9.77E-7 Ω·m
- 400.0 °C Electrical resistivity of 1.03E-6 Ω·m
- 500.0 °C Electrical resistivity of 1.08E-6 Ω·m
- 600.0 °C Electrical resistivity of 1.12E-6 Ω·m
- 700.0 °C Electrical resistivity of 1.15E-6 Ω·m
- 800.0 °C Electrical resistivity of 1.18E-6 Ω·m

DIN 17440 Grade X2CrNiMoN17-11-2 quenched (+Q) mechanical

Property Temperature Value Comment
Elastic modulus -100.0 °C Elastic modulus of 206 GPa -
- 20.0 °C Elastic modulus of 196 - 200 GPa -
- 100.0 °C Elastic modulus of 190 - 194 GPa -
- 200.0 °C Elastic modulus of 182 - 186 GPa -
- 300.0 °C Elastic modulus of 174 - 179 GPa -
- 400.0 °C Elastic modulus of 166 - 172 GPa -
- 500.0 °C Elastic modulus of 158 - 165 GPa -
- 600.0 °C Elastic modulus of 150 GPa -
- 700.0 °C Elastic modulus of 142 GPa -
- 800.0 °C Elastic modulus of 134 GPa -
- 900.0 °C Elastic modulus of 127 GPa -
- 1000.0 °C Elastic modulus of 120 GPa -
Elongation 20.0 °C Elongation of 35 - 40 % -
Elongation A80 20.0 °C Elongation A80 of 35 % -
Elongation A80, transverse 20.0 °C Elongation A80, transverse of 40 % -
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 580 - 800 MPa -
Tensile strength, transverse 20.0 °C Tensile strength, transverse of 580 - 800 MPa -
Yield strength Rp0.2 20.0 °C Yield strength Rp0.2 of 280 MPa -
- 50.0 °C Yield strength Rp0.2 of 250 MPa -
- 100.0 °C Yield strength Rp0.2 of 211 MPa -
- 150.0 °C Yield strength Rp0.2 of 185 MPa -
- 200.0 °C Yield strength Rp0.2 of 167 MPa -
- 250.0 °C Yield strength Rp0.2 of 155 MPa -
- 300.0 °C Yield strength Rp0.2 of 145 MPa -
- 350.0 °C Yield strength Rp0.2 of 140 MPa -
- 400.0 °C Yield strength Rp0.2 of 135 MPa -
- 450.0 °C Yield strength Rp0.2 of 131 MPa -
- 500.0 °C Yield strength Rp0.2 of 129 MPa -
- 550.0 °C Yield strength Rp0.2 of 127 MPa -
Yield strength Rp0.2, transverse 20.0 °C Yield strength Rp0.2, transverse of 280 MPa -
Yield strength Rp1.0 20.0 °C Yield strength Rp1.0 of 315 MPa -
- 50.0 °C Yield strength Rp1.0 of 284 MPa -
- 100.0 °C Yield strength Rp1.0 of 246 MPa -
- 150.0 °C Yield strength Rp1.0 of 218 MPa -
- 200.0 °C Yield strength Rp1.0 of 198 MPa -
- 250.0 °C Yield strength Rp1.0 of 183 MPa -
- 300.0 °C Yield strength Rp1.0 of 175 MPa -
- 350.0 °C Yield strength Rp1.0 of 169 MPa -
- 400.0 °C Yield strength Rp1.0 of 164 MPa -
- 450.0 °C Yield strength Rp1.0 of 160 MPa -
- 500.0 °C Yield strength Rp1.0 of 158 MPa -
- 550.0 °C Yield strength Rp1.0 of 157 MPa -
Yield strength Rp1.0, transverse 20.0 °C Yield strength Rp1.0, transverse of 315 MPa -

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