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SEW 470 Grade X12CrNi23-13 – Solution Annealed + AT for High‑Temperature Applications

The heat resistant steel X12CrNi23-13, mat. No 1.4833, is resistant in air up to 1000°C (highest application temp.). Low resistance to sulfureous gases (reducing as well as oxidizing). Mean resistance to nitrogenous, oxygen deficient gases and to carburization. The material is ideal for welding according to all welding methods and is applicated in industrial furnace construction.

Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.77 - 7.9 g/cm³

Mechanical

PropertyTemperatureValue

Elastic modulus

-100.0 °C

206 GPa

20.0 °C

196 GPa

24.0 °C

193.7 GPa

100.0 °C

190 GPa

200.0 °C

182 GPa

300.0 °C

174 GPa

400.0 °C

166 GPa

500.0 °C

158 GPa

600.0 °C

150 GPa

700.0 °C

142 GPa

800.0 °C

134 GPa

900.0 °C

127 GPa

1000.0 °C

120 GPa

Elongation

20.0 °C

35 %

Elongation A80

20.0 °C

33 %

Hardness, Brinell

20.0 °C

192 [-]

Poisson's ratio

24.0 °C

0.23 - 0.24 [-]

Shear modulus

24.0 °C

74.5 - 77.9 GPa

Tensile strength

20.0 °C

500 - 700 MPa

Yield strength Rp0.2

20.0 °C

210 MPa

Yield strength Rp1.0

20.0 °C

250 MPa

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

-100.0 °C

1.49E-5 1/K

20.0 °C

1.61E-5 1/K

100.0 °C

1.67E-5 1/K

200.0 °C

1.6E-5 - 1.72E-5 1/K

300.0 °C

1.77E-5 1/K

400.0 °C

1.75E-5 - 1.81E-5 1/K

500.0 °C

1.84E-5 1/K

600.0 °C

1.8E-5 - 1.88E-5 1/K

700.0 °C

1.91E-5 1/K

800.0 °C

1.85E-5 - 1.94E-5 1/K

900.0 °C

1.97E-5 1/K

1000.0 °C

1.95E-5 - 2E-5 1/K

Max service temperature, long

0 - 1000 °C

Melting point

1230 - 1480 °C

Typical for Austenitic Stainless Steel

Specific heat capacity

-100.0 °C

440 J/(kg·K)

20.0 °C

472 - 500 J/(kg·K)

100.0 °C

487 J/(kg·K)

200.0 °C

503 J/(kg·K)

300.0 °C

512 J/(kg·K)

400.0 °C

520 J/(kg·K)

500.0 °C

530 J/(kg·K)

600.0 °C

541 J/(kg·K)

700.0 °C

551 J/(kg·K)

800.0 °C

559 J/(kg·K)

900.0 °C

565 J/(kg·K)

1000.0 °C

571 J/(kg·K)

Thermal conductivity

20.0 °C

12.6 - 15 W/(m·K)

100.0 °C

14.1 W/(m·K)

200.0 °C

15.9 W/(m·K)

300.0 °C

17.4 W/(m·K)

400.0 °C

19 W/(m·K)

500.0 °C

19 - 20.5 W/(m·K)

600.0 °C

21.9 W/(m·K)

700.0 °C

23.3 W/(m·K)

800.0 °C

24.7 W/(m·K)

900.0 °C

26.1 W/(m·K)

1000.0 °C

27.5 W/(m·K)

Thermal diffusivity

20.0 °C

3.4 mm²/s

100.0 °C

3.6 mm²/s

200.0 °C

3.9 mm²/s

300.0 °C

4.3 mm²/s

400.0 °C

4.5 mm²/s

500.0 °C

4.7 mm²/s

600.0 °C

4.8 mm²/s

700.0 °C

5.1 mm²/s

800.0 °C

5.5 mm²/s

900.0 °C

5.8 mm²/s

1000.0 °C

5.9 mm²/s

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

7.8E-7 - 8.68E-7 Ω·m

100.0 °C

9.21E-7 Ω·m

200.0 °C

9.75E-7 Ω·m

300.0 °C

1.03E-6 Ω·m

400.0 °C

1.08E-6 Ω·m

500.0 °C

1.12E-6 Ω·m

600.0 °C

1.15E-6 Ω·m

700.0 °C

1.18E-6 Ω·m

800.0 °C

1.21E-6 Ω·m

900.0 °C

1.24E-6 Ω·m

1000.0 °C

1.26E-6 Ω·m

Chemical properties

PropertyValue

Carbon

0.15 %

Chromium

22 - 24 %

Manganese

2 %

Nickel

12 - 14 %

Nitrogen

0.11 %

Phosphorus

0.05 %

Silicon

1 %

Sulfur

0.015 %


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