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EN 10028-7 Grade X8CrNiNb16-13 – Solution‑Annealed Steel for 800 °C Applications

The austenitic steel X8CrNiNb16-13 is available in solution annealed condition as hot rolled sheet. It is a high temperature resistant special steel for application up to 800 °C. No scaling up to 800 °C. The material is resistant to embrittlement and resistant to intercrystalline corrosion, also in the sensitized condition. Application: in turbine and steam-boiler construction (combuster lining, after heater cover, front pipes), for hot-work tools as well as for high-pressure hydrogenation quality in hydrogenation facilities at higher temperatures

Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.9 - 7.98 g/cm³

50.0 °C

7.96 g/cm³

100.0 °C

7.94 g/cm³

150.0 °C

7.92 g/cm³

200.0 °C

7.9 g/cm³

250.0 °C

7.88 g/cm³

300.0 °C

7.86 g/cm³

350.0 °C

7.83 g/cm³

400.0 °C

7.81 g/cm³

450.0 °C

7.79 g/cm³

500.0 °C

7.76 g/cm³

550.0 °C

7.74 g/cm³

600.0 °C

7.71 g/cm³

650.0 °C

7.68 g/cm³

700.0 °C

7.66 g/cm³

750.0 °C

7.63 g/cm³

800.0 °C

7.61 g/cm³

Mechanical

PropertyTemperatureValue

Elastic modulus

-100.0 °C

206 GPa

20.0 °C

196 - 200 GPa

50.0 °C

197.57 GPa

100.0 °C

190 - 193.65 GPa

150.0 °C

189.43 GPa

200.0 °C

182 - 185 GPa

250.0 °C

180.11 GPa

300.0 °C

174 - 175.5 GPa

350.0 °C

170.89 GPa

400.0 °C

166 - 170 GPa

450.0 °C

162.26 GPa

500.0 °C

158 - 160 GPa

550.0 °C

154.02 GPa

600.0 °C

149.99 - 155 GPa

650.0 °C

146.07 GPa

700.0 °C

142 - 145 GPa

750.0 °C

138.32 GPa

800.0 °C

134 - 140 GPa

900.0 °C

127 - 135 GPa

1000.0 °C

120 - 125 GPa

Elongation A80, transverse

20.0 °C

35 %

Elongation, transverse

20.0 °C

35 %

Poisson's ratio

20.0 °C

0.28 [-]

50.0 °C

0.28 [-]

100.0 °C

0.28 [-]

150.0 °C

0.28 [-]

200.0 °C

0.29 [-]

250.0 °C

0.29 [-]

300.0 °C

0.29 [-]

350.0 °C

0.3 [-]

400.0 °C

0.3 [-]

450.0 °C

0.31 [-]

500.0 °C

0.31 [-]

550.0 °C

0.32 [-]

600.0 °C

0.32 [-]

650.0 °C

0.32 [-]

700.0 °C

0.32 [-]

750.0 °C

0.32 [-]

800.0 °C

0.33 [-]

Shear modulus

20.0 °C

77.01 - 78.09 GPa

50.0 °C

77.3 GPa

100.0 °C

75.73 GPa

150.0 °C

73.87 GPa

200.0 °C

71.91 GPa

250.0 °C

69.95 GPa

300.0 °C

67.89 GPa

350.0 °C

65.83 GPa

400.0 °C

63.96 GPa

450.0 °C

62.1 GPa

500.0 °C

60.33 GPa

550.0 °C

58.57 GPa

600.0 °C

56.9 GPa

650.0 °C

55.33 GPa

700.0 °C

53.86 GPa

750.0 °C

52.29 GPa

800.0 °C

50.82 GPa

Tensile strength

20.0 °C

510 - 690 MPa

50.0 °C

493 MPa

100.0 °C

465 MPa

150.0 °C

440 MPa

200.0 °C

420 MPa

250.0 °C

400 MPa

300.0 °C

385 MPa

350.0 °C

375 MPa

400.0 °C

370 MPa

450.0 °C

360 MPa

500.0 °C

350 MPa

550.0 °C

340 MPa

600.0 °C

320 MPa

Tensile strength, transverse

20.0 °C

510 - 690 MPa

Yield strength Rp0.2

50.0 °C

191 MPa

100.0 °C

175 MPa

150.0 °C

166 MPa

200.0 °C

157 MPa

250.0 °C

147 MPa

300.0 °C

137 MPa

350.0 °C

132 MPa

400.0 °C

128 MPa

450.0 °C

123 MPa

500.0 °C

118 MPa

550.0 °C

118 MPa

600.0 °C

113 MPa

Yield strength Rp0.2, transverse

20.0 °C

200 MPa

Yield strength Rp1.0

50.0 °C

227 MPa

100.0 °C

205 MPa

150.0 °C

195 MPa

200.0 °C

186 MPa

250.0 °C

176 MPa

300.0 °C

167 MPa

350.0 °C

162 MPa

400.0 °C

157 MPa

450.0 °C

152 MPa

500.0 °C

147 MPa

550.0 °C

147 MPa

600.0 °C

142 MPa

Yield strength Rp1.0, transverse

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

1.63E-5 - 1.67E-5 1/K

200.0 °C

1.69E-5 - 1.72E-5 1/K

300.0 °C

1.73E-5 - 1.77E-5 1/K

400.0 °C

1.78E-5 - 1.81E-5 1/K

500.0 °C

1.82E-5 - 1.84E-5 1/K

600.0 °C

1.85E-5 - 1.88E-5 1/K

700.0 °C

1.87E-5 - 1.91E-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 - 800 °C

Melting point

1230 - 1480 °C

Typical for Austenitic Stainless Steel

Specific heat capacity

-100.0 °C

440 J/(kg·K)

20.0 °C

450 - 472 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

13.3 - 17 W/(m·K)

100.0 °C

14.9 W/(m·K)

200.0 °C

16.5 W/(m·K)

300.0 °C

18.1 W/(m·K)

400.0 °C

19.5 W/(m·K)

500.0 °C

21 W/(m·K)

600.0 °C

22.4 W/(m·K)

700.0 °C

23.8 W/(m·K)

800.0 °C

25.2 W/(m·K)

Thermal diffusivity

20.0 °C

3.5 mm²/s

100.0 °C

3.8 mm²/s

200.0 °C

4 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

5.4 mm²/s

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

7.1E-7 - 7.91E-7 Ω·m

50.0 °C

7.61E-7 Ω·m

100.0 °C

7.99E-7 - 8.45E-7 Ω·m

150.0 °C

8.38E-7 Ω·m

200.0 °C

8.72E-7 - 9.19E-7 Ω·m

250.0 °C

9.04E-7 Ω·m

300.0 °C

9.34E-7 - 9.77E-7 Ω·m

350.0 °C

9.63E-7 Ω·m

400.0 °C

9.91E-7 - 1.03E-6 Ω·m

450.0 °C

1.02E-6 Ω·m

500.0 °C

1.04E-6 - 1.08E-6 Ω·m

550.0 °C

1.06E-6 Ω·m

600.0 °C

1.08E-6 - 1.12E-6 Ω·m

650.0 °C

1.1E-6 Ω·m

700.0 °C

1.12E-6 - 1.15E-6 Ω·m

750.0 °C

1.14E-6 Ω·m

800.0 °C

1.15E-6 - 1.18E-6 Ω·m

Chemical properties

PropertyValue

Carbon

0.04 - 0.1 %

Chromium

15 - 17 %

Manganese

1.5 %

Nickel

12 - 14 %

Niobium

1.2 %

Phosphorus

0.04 %

Silicon

0.3 - 0.6 %

Sulfur

0.015 %

Titanium

1.2 %


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