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EN 10216-5 Grade X1CrNi25‑21 Solution Annealed (+AT) – Superior Corrosion Resistance Steel

The steel is melted with restricted chemical analysis. It shows high corrosion resistance to oxidizing acids (esp. nitric acid). This material is resistant to intercrystalline corrosion also in sensitized condition. Application in urea synthesis, for components with nitric acid impact up to a concentration of 70 % and increased temperature, in fertilizer industry as well as for different chemical procedures. Further properties see 1.4335, X 1 CrNi 25 21, acc. VdTÜV Material Spec. 468 : 2001-06 (valid fpr sheet and strip).

Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.76 - 7.9 g/cm³

Mechanical

PropertyTemperatureValueComment

Elastic modulus

-100.0 °C

206 GPa

20.0 °C

195 - 196 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

45 %

Elongation, transverse

20.0 °C

40 %

Poisson's ratio

23.0 °C

0.3 [-]

Typical for Austenitic Stainless Steel

Shear modulus

23.0 °C

77 GPa

Typical for Austenitic Stainless Steel

Tensile strength

20.0 °C

470 - 670 MPa

Tensile strength, transverse

20.0 °C

470 - 670 MPa

Yield strength Rp0.2

20.0 °C

180 MPa

50.0 °C

170 MPa

100.0 °C

150 MPa

150.0 °C

140 MPa

200.0 °C

130 MPa

250.0 °C

120 MPa

300.0 °C

115 MPa

350.0 °C

110 MPa

400.0 °C

105 MPa

Yield strength Rp0.2, transverse

20.0 °C

180 MPa

Yield strength Rp1.0

20.0 °C

210 MPa

50.0 °C

200 MPa

100.0 °C

180 MPa

150.0 °C

170 MPa

200.0 °C

160 MPa

250.0 °C

150 MPa

300.0 °C

140 MPa

350.0 °C

135 MPa

400.0 °C

130 MPa

Yield strength Rp1.0, transverse

20.0 °C

210 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

1.58E-5 - 1.67E-5 1/K

200.0 °C

1.61E-5 - 1.72E-5 1/K

300.0 °C

1.65E-5 - 1.77E-5 1/K

400.0 °C

1.69E-5 - 1.81E-5 1/K

500.0 °C

1.73E-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

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

11.9 - 14 W/(m·K)

100.0 °C

13.3 W/(m·K)

200.0 °C

15.1 W/(m·K)

300.0 °C

16.7 W/(m·K)

400.0 °C

18.3 W/(m·K)

500.0 °C

19.8 W/(m·K)

600.0 °C

21.3 W/(m·K)

700.0 °C

22.8 W/(m·K)

800.0 °C

24.3 W/(m·K)

900.0 °C

25.7 W/(m·K)

1000.0 °C

27.1 W/(m·K)

Thermal diffusivity

20.0 °C

3.3 mm²/s

100.0 °C

3.4 mm²/s

200.0 °C

3.7 mm²/s

300.0 °C

4.1 mm²/s

400.0 °C

4.3 mm²/s

500.0 °C

4.5 mm²/s

600.0 °C

4.7 mm²/s

700.0 °C

5 mm²/s

800.0 °C

5.4 mm²/s

900.0 °C

5.7 mm²/s

1000.0 °C

5.8 mm²/s

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

8.5E-7 - 9.59E-7 Ω·m

100.0 °C

1.01E-6 Ω·m

200.0 °C

1.05E-6 Ω·m

300.0 °C

1.1E-6 Ω·m

400.0 °C

1.13E-6 Ω·m

500.0 °C

1.17E-6 Ω·m

600.0 °C

1.19E-6 Ω·m

700.0 °C

1.22E-6 Ω·m

800.0 °C

1.24E-6 Ω·m

900.0 °C

1.26E-6 Ω·m

1000.0 °C

1.28E-6 Ω·m

Chemical properties

PropertyValue

Carbon

0.02 %

Chromium

24 - 26 %

Manganese

2 %

Molybdenum

0.2 %

Nickel

20 - 22 %

Nitrogen

0.1 - 0.11 %

Phosphorus

0.03 %

Silicon

0.25 %

Sulfur

0.01 %


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