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DIN 17103 WStE 500 – Normalized & Normalized Formed Steel for High‑Temperature Applications

The fine grained steel WStE 500 (high temperature grade) is used for welded constructions of different kind like pressure vessels, stationary or mobile storage tanks, high pressure lines, bridge and support constructions etc. The application temperature of the high temperature grade amounts to 400 °C.

Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.84 g/cm³

Mechanical

PropertyTemperatureValueComment

Elastic modulus

-100.0 °C

217 GPa

20.0 °C

212 GPa

100.0 °C

207 GPa

200.0 °C

199 GPa

300.0 °C

192 GPa

400.0 °C

184 GPa

500.0 °C

175 GPa

600.0 °C

164 GPa

Elongation

20.0 °C

16 %

Poisson's ratio

23.0 °C

0.3 [-]

Typical for Steel

Tensile strength

20.0 °C

570 - 780 MPa

Yield strength

20.0 °C

410 - 500 MPa

Yield strength Rp0.2

100.0 °C

373 - 422 MPa

150.0 °C

343 - 392 MPa

200.0 °C

324 - 363 MPa

250.0 °C

294 - 333 MPa

300.0 °C

275 - 314 MPa

350.0 °C

245 - 284 MPa

400.0 °C

206 - 255 MPa

Thermal

PropertyTemperatureValue

Coefficient of thermal expansion

-100.0 °C

1.05E-5 1/K

20.0 °C

1.15E-5 1/K

100.0 °C

1.21E-5 1/K

200.0 °C

1.27E-5 1/K

300.0 °C

1.32E-5 1/K

400.0 °C

1.36E-5 1/K

500.0 °C

1.4E-5 1/K

600.0 °C

1.44E-5 1/K

Max service temperature, long

0 - 400 °C

Specific heat capacity

-100.0 °C

423 J/(kg·K)

20.0 °C

461 J/(kg·K)

100.0 °C

479 J/(kg·K)

200.0 °C

499 J/(kg·K)

300.0 °C

517 J/(kg·K)

400.0 °C

536 J/(kg·K)

500.0 °C

558 J/(kg·K)

600.0 °C

587 J/(kg·K)

Thermal conductivity

-100.0 °C

34.7 W/(m·K)

20.0 °C

39.7 W/(m·K)

100.0 °C

40.9 W/(m·K)

200.0 °C

41 W/(m·K)

300.0 °C

39.9 W/(m·K)

400.0 °C

38.2 W/(m·K)

500.0 °C

36.1 W/(m·K)

600.0 °C

33.8 W/(m·K)

Thermal diffusivity

-100.0 °C

11.9 mm²/s

20.0 °C

11 mm²/s

100.0 °C

10.5 mm²/s

200.0 °C

9.9 mm²/s

300.0 °C

9.1 mm²/s

400.0 °C

8.1 mm²/s

500.0 °C

6.9 mm²/s

600.0 °C

5.7 mm²/s

Electrical

PropertyTemperatureValue

Electrical resistivity

-100.0 °C

1.97E-7 Ω·m

20.0 °C

2.62E-7 Ω·m

100.0 °C

3.13E-7 Ω·m

200.0 °C

3.85E-7 Ω·m

300.0 °C

4.7E-7 Ω·m

400.0 °C

5.69E-7 Ω·m

500.0 °C

6.85E-7 Ω·m

600.0 °C

8.2E-7 Ω·m

Chemical properties

PropertyValue

Aluminium

0.02 %

Carbon

0.21 %

Chromium

0.3 %

Copper

0.2 %

Manganese

1 - 1.7 %

Molybdenum

0.1 %

Nickel

1 %

Niobium

0.05 %

Nitrogen

0.02 %

Phosphorus

0.04 %

Silicon

0.1 - 0.6 %

Sulfur

0.03 %

Vanadium

0.22 %


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