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EN 10088-1 X6CrAl13 Soft Annealed Grade (+A) – Premium Alloy for High‑Temperature Applications

Material X6CrAl13 is comparable to X 6 CrAl 13 acc. to DIN 17440 : 1985-07. Application predominantly in apparatus engineering for petroleum industry, e.g. for cracking facilities as well as for welded parts in hydroelectric power station building. Addition of aluminium inhibits hardness increase around the weldseam and therewith crack sensitivity. No resistance to intercrystalline corrosion both in delivery and welded condition. Application temperature: up to 600 °C (for comparable DIN-material)

Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.58 - 7.7 g/cm³

Mechanical

PropertyTemperatureValueComment

Elastic modulus

20.0 °C

218 - 220 GPa

100.0 °C

213 - 215 GPa

200.0 °C

206 - 210 GPa

300.0 °C

198 - 205 GPa

400.0 °C

190 - 195 GPa

500.0 °C

180 GPa

600.0 °C

167 GPa

700.0 °C

150 GPa

Elongation

20.0 °C

17 %

Elongation A80

20.0 °C

17 %

Elongation A80, transverse

20.0 °C

17 %

Elongation, transverse

20.0 °C

17 %

Poisson's ratio

23.0 °C

0.3 [-]

Typical for Ferritic Stainless Steel

Shear modulus

23.0 °C

77 GPa

Typical for Ferritic Stainless Steel

Tensile strength

20.0 °C

400 - 600 MPa

Tensile strength, transverse

20.0 °C

400 - 600 MPa

Yield strength Rp0.2

20.0 °C

210 - 230 MPa

100.0 °C

220 MPa

150.0 °C

215 MPa

200.0 °C

210 MPa

250.0 °C

205 MPa

300.0 °C

200 MPa

350.0 °C

195 MPa

400.0 °C

190 MPa

Yield strength Rp0.2, transverse

20.0 °C

230 - 250 MPa

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

20.0 °C

1.02E-5 1/K

100.0 °C

1.05E-5 1/K

200.0 °C

1.09E-5 - 1.1E-5 1/K

300.0 °C

1.13E-5 - 1.15E-5 1/K

400.0 °C

1.16E-5 - 1.2E-5 1/K

500.0 °C

1.2E-5 1/K

600.0 °C

1.22E-5 1/K

700.0 °C

1.24E-5 1/K

Max service temperature, long

0 - 600 °C

Melting point

1425 - 1530 °C

Typical for Ferritic Stainless Steel

Specific heat capacity

20.0 °C

439 - 460 J/(kg·K)

100.0 °C

474 J/(kg·K)

200.0 °C

492 J/(kg·K)

300.0 °C

517 J/(kg·K)

400.0 °C

538 J/(kg·K)

500.0 °C

564 J/(kg·K)

600.0 °C

598 J/(kg·K)

700.0 °C

647 J/(kg·K)

Thermal conductivity

20.0 °C

15.7 - 30 W/(m·K)

100.0 °C

17.1 W/(m·K)

200.0 °C

18.6 W/(m·K)

300.0 °C

20 W/(m·K)

400.0 °C

21.2 W/(m·K)

500.0 °C

22.3 W/(m·K)

600.0 °C

23.1 W/(m·K)

700.0 °C

23.8 W/(m·K)

Thermal diffusivity

20.0 °C

4.7 mm²/s

100.0 °C

4.5 mm²/s

200.0 °C

4.6 mm²/s

300.0 °C

4.7 mm²/s

400.0 °C

4.5 mm²/s

500.0 °C

4.3 mm²/s

600.0 °C

3.7 mm²/s

700.0 °C

3 mm²/s

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

6E-7 - 9.19E-7 Ω·m

100.0 °C

9.48E-7 Ω·m

200.0 °C

9.87E-7 Ω·m

300.0 °C

1.03E-6 Ω·m

400.0 °C

1.07E-6 Ω·m

500.0 °C

1.12E-6 Ω·m

600.0 °C

1.18E-6 Ω·m

700.0 °C

1.24E-6 Ω·m

Chemical properties

PropertyValue

Aluminium

0.1 - 0.3 %

Carbon

0.08 %

Chromium

12 - 14 %

Manganese

1 %

Phosphorus

0.04 %

Silicon

1 %

Sulfur

0.015 %


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