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EN 10217-7 Grade X5CrNiMo17-12-2 Solution-Annealed Steel – Corrosion‑Resistant Circular Tubes

The austenitic steel X5CrNiMo17-12-2 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 300 °C) also in the welded condition.

Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.96 - 8 g/cm³

22.0 °C

7.96 g/cm³

Mechanical

PropertyTemperatureValue

Elastic modulus

-100.0 °C

206 GPa

20.0 °C

196 - 200 GPa

22.0 °C

196.2 GPa

24.0 °C

193.1 - 197.9 GPa

100.0 °C

190 - 194 GPa

149.0 °C

184.8 - 190.3 GPa

200.0 °C

182 - 186 GPa

260.0 °C

182 - 182.7 GPa

300.0 °C

174 - 179 GPa

371.0 °C

174.4 - 179.3 GPa

400.0 °C

166 - 172 GPa

483.0 °C

163.4 - 165.5 GPa

500.0 °C

158 - 165 GPa

593.0 °C

153.4 - 157.9 GPa

600.0 °C

150 GPa

700.0 °C

142 GPa

704.0 °C

143.4 - 146.2 GPa

800.0 °C

134 GPa

816.0 °C

124.1 - 133.1 GPa

900.0 °C

127 GPa

1000.0 °C

120 GPa

Elongation

20.0 °C

40 %

Elongation, transverse

20.0 °C

30 %

Poisson's ratio

22.0 °C

0.29 [-]

24.0 °C

0.23 - 0.28 [-]

149.0 °C

0.24 - 0.28 [-]

260.0 °C

0.28 - 0.31 [-]

371.0 °C

0.33 - 0.36 [-]

483.0 °C

0.29 - 0.32 [-]

593.0 °C

0.32 [-]

704.0 °C

0.28 - 0.34 [-]

816.0 °C

0.22 - 0.27 [-]

Shear modulus

22.0 °C

75.8 GPa

24.0 °C

77.2 - 78.6 GPa

149.0 °C

74.5 GPa

260.0 °C

69.6 - 71 GPa

371.0 °C

64.1 - 67.6 GPa

483.0 °C

62.1 - 64.1 GPa

593.0 °C

57.9 - 60 GPa

704.0 °C

54.5 - 55.9 GPa

816.0 °C

51 - 52.4 GPa

Tensile strength

20.0 °C

510 - 710 MPa

Tensile strength, transverse

20.0 °C

510 - 710 MPa

Yield strength Rp0.2

20.0 °C

205 MPa

50.0 °C

196 MPa

100.0 °C

175 MPa

150.0 °C

158 MPa

200.0 °C

145 MPa

250.0 °C

135 MPa

300.0 °C

127 MPa

350.0 °C

120 MPa

400.0 °C

115 MPa

450.0 °C

112 MPa

500.0 °C

110 MPa

550.0 °C

108 MPa

Yield strength Rp0.2, transverse

20.0 °C

205 MPa

Yield strength Rp1.0

20.0 °C

240 MPa

50.0 °C

230 MPa

100.0 °C

210 MPa

150.0 °C

190 MPa

200.0 °C

175 MPa

250.0 °C

165 MPa

300.0 °C

155 MPa

350.0 °C

150 MPa

400.0 °C

145 MPa

450.0 °C

141 MPa

500.0 °C

139 MPa

550.0 °C

137 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

500.0 °C

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

600.0 °C

1.88E-5 1/K

700.0 °C

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

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

13.3 - 15 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

7.5E-7 - 7.91E-7 Ω·m

100.0 °C

8.45E-7 Ω·m

200.0 °C

9.19E-7 Ω·m

300.0 °C

9.77E-7 Ω·m

400.0 °C

1.03E-6 Ω·m

500.0 °C

1.08E-6 Ω·m

600.0 °C

1.12E-6 Ω·m

700.0 °C

1.15E-6 Ω·m

800.0 °C

1.18E-6 Ω·m

Chemical properties

PropertyValue

Carbon

0.07 %

Chromium

16.5 - 18.5 %

Manganese

2 %

Molybdenum

2 - 2.5 %

Nickel

10 - 13 %

Nitrogen

0.11 %

Phosphorus

0.05 %

Silicon

1 %

Sulfur

0.015 %


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