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EN 10222-5 X6CrNiNb18-10 – Solution Annealed Steel with Superior Corrosion Resistance

Trademark X6CrNiNb18-10 is comparable to X 6 CrNiNb 18 10 acc. to DIN17440-85. Its corrosion properties are comparable to 1.4541. The steel is resistant to intercrystalline corrosion also in sensitized condition, but it shows under certain welding conditions a heat crack tendency. Applicable to a great extent for welded components in chemical apparatus engineering, in food and luxury food industry, in film and photo industry as well as for household appliances. Accredited for pressure vessel construction up to 300 °C., with certificate up to 550 °C. Unsuitable for mirror finishing due to the Nb-content.

Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.9 - 7.93 g/cm³

Mechanical

PropertyTemperatureValue

Elastic modulus

-100.0 °C

206 GPa

20.0 °C

196 - 200 GPa

95.0 °C

194.43 GPa

100.0 °C

190 - 194 GPa

150.0 °C

189.61 GPa

200.0 °C

182 - 186 GPa

205.0 °C

184.78 GPa

260.0 °C

179.95 GPa

300.0 °C

174 - 179 GPa

315.0 °C

175.13 GPa

370.0 °C

170.99 GPa

400.0 °C

166 - 172 GPa

425.0 °C

166.16 GPa

485.0 °C

161.34 GPa

500.0 °C

158 - 165 GPa

540.0 °C

157.2 GPa

595.0 °C

151.69 GPa

600.0 °C

150 GPa

650.0 °C

147.54 GPa

700.0 °C

142 GPa

705.0 °C

142.72 GPa

760.0 °C

137.9 GPa

800.0 °C

134 GPa

815.0 °C

133.76 GPa

870.0 °C

128.93 GPa

900.0 °C

127 GPa

1000.0 °C

120 GPa

Elongation

20.0 °C

30 - 40 %

Poisson's ratio

20.0 °C

0.27 [-]

95.0 °C

0.28 [-]

150.0 °C

0.29 [-]

205.0 °C

0.29 [-]

260.0 °C

0.29 [-]

315.0 °C

0.3 [-]

370.0 °C

0.31 [-]

425.0 °C

0.31 [-]

485.0 °C

0.32 [-]

540.0 °C

0.33 [-]

595.0 °C

0.33 [-]

650.0 °C

0.32 [-]

705.0 °C

0.33 [-]

760.0 °C

0.35 [-]

815.0 °C

0.35 [-]

870.0 °C

0.36 [-]

Shear modulus

20.0 °C

78.6 GPa

95.0 °C

75.84 GPa

150.0 °C

73.77 GPa

205.0 °C

71.71 GPa

260.0 °C

69.64 GPa

315.0 °C

67.57 GPa

370.0 °C

65.5 GPa

425.0 °C

63.43 GPa

485.0 °C

61.36 GPa

540.0 °C

59.3 GPa

595.0 °C

57.23 GPa

650.0 °C

55.85 GPa

705.0 °C

53.78 GPa

760.0 °C

51.11 GPa

815.0 °C

49.64 GPa

870.0 °C

47.57 GPa

Tensile strength

20.0 °C

510 - 710 MPa

Yield strength Rp0.2

20.0 °C

205 MPa

Yield strength Rp1.0

20.0 °C

240 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

1.6E-5 - 1.67E-5 1/K

200.0 °C

1.65E-5 - 1.72E-5 1/K

300.0 °C

1.7E-5 - 1.77E-5 1/K

400.0 °C

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

425.0 °C

1.76E-5 1/K

485.0 °C

1.78E-5 1/K

500.0 °C

1.8E-5 - 1.84E-5 1/K

540.0 °C

1.8E-5 1/K

595.0 °C

1.83E-5 1/K

600.0 °C

1.88E-5 1/K

650.0 °C

1.85E-5 1/K

700.0 °C

1.91E-5 1/K

705.0 °C

1.87E-5 1/K

800.0 °C

1.94E-5 1/K

900.0 °C

1.97E-5 1/K

1000.0 °C

2E-5 1/K

Max service temperature, long

0 - 550 °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

14.3 - 15 W/(m·K)

100.0 °C

15.8 W/(m·K)

200.0 °C

17.5 W/(m·K)

300.0 °C

19 W/(m·K)

400.0 °C

20.5 W/(m·K)

500.0 °C

21.9 W/(m·K)

600.0 °C

23.3 W/(m·K)

700.0 °C

24.6 W/(m·K)

800.0 °C

26 W/(m·K)

900.0 °C

27.4 W/(m·K)

1000.0 °C

28.8 W/(m·K)

Thermal diffusivity

20.0 °C

3.8 mm²/s

100.0 °C

4 mm²/s

200.0 °C

4.2 mm²/s

300.0 °C

4.6 mm²/s

400.0 °C

4.8 mm²/s

500.0 °C

4.9 mm²/s

600.0 °C

5 mm²/s

700.0 °C

5.3 mm²/s

800.0 °C

5.6 mm²/s

900.0 °C

5.9 mm²/s

1000.0 °C

6 mm²/s

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

7.1E-7 Ω·m

100.0 °C

7.76E-7 Ω·m

200.0 °C

8.49E-7 Ω·m

300.0 °C

9.14E-7 Ω·m

400.0 °C

9.71E-7 Ω·m

500.0 °C

1.02E-6 Ω·m

600.0 °C

1.07E-6 Ω·m

700.0 °C

1.1E-6 Ω·m

800.0 °C

1.14E-6 Ω·m

900.0 °C

1.17E-6 Ω·m

1000.0 °C

1.19E-6 Ω·m

Chemical properties

PropertyValue

Carbon

0.08 %

Chromium

17 - 19 %

Manganese

2 %

Nickel

9 - 12 %

Niobium

1 %

Phosphorus

0.05 %

Silicon

1 %

Sulfur

0.015 %


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