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DIN 17440 X10Cr13 – Premium Quenched & Tempered Steel for 550 °C Applications

Application: - normally in quenched and tempered state with fine grounded or polished surface (tap elements, valve spindle, arbor, pump elements, bolts, screws) - application temperature: up to 550 °C - for construction elements in water and steam an mild acting media in food inustry

Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.7 - 7.73 g/cm³

Mechanical

PropertyTemperatureValue

Elastic modulus

20.0 °C

216 - 217.99 GPa

100.0 °C

213 - 215 GPa

200.0 °C

188 - 207 GPa

300.0 °C

164 - 200 GPa

400.0 °C

188.79 - 192 GPa

Elongation

20.0 °C

15 - 18 %

Elongation, transverse

20.0 °C

12 %

Poisson's ratio

20.0 °C

0.29 [-]

100.0 °C

0.29 [-]

200.0 °C

0.29 [-]

300.0 °C

0.31 [-]

400.0 °C

0.31 [-]

Shear modulus

20.0 °C

84.82 GPa

100.0 °C

82.5 GPa

200.0 °C

79.57 GPa

300.0 °C

75.86 GPa

400.0 °C

72 GPa

Tensile strength

20.0 °C

600 - 800 MPa

Tensile strength, transverse

20.0 °C

600 - 800 MPa

Yield strength Rp0.2

20.0 °C

420 MPa

50.0 °C

430 MPa

100.0 °C

420 MPa

150.0 °C

410 MPa

200.0 °C

400 MPa

250.0 °C

382 MPa

300.0 °C

365 MPa

350.0 °C

335 MPa

400.0 °C

305 MPa

Yield strength Rp0.2, transverse

20.0 °C

420 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

Max service temperature, long

0 - 550 °C

Melting point

1370 - 1530 °C

Typical for Martensitic Stainless Steel

Specific heat capacity

20.0 °C

439 - 460 J/(kg·K)

100.0 °C

474 J/(kg·K)

200.0 °C

498 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)

Thermal conductivity

20.0 °C

25.9 - 30 W/(m·K)

100.0 °C

25.3 W/(m·K)

200.0 °C

25.2 W/(m·K)

300.0 °C

25.2 W/(m·K)

400.0 °C

25.4 W/(m·K)

500.0 °C

25.7 W/(m·K)

600.0 °C

25.9 W/(m·K)

Thermal diffusivity

20.0 °C

7.6 mm²/s

100.0 °C

6.6 mm²/s

200.0 °C

6.1 mm²/s

300.0 °C

5.8 mm²/s

400.0 °C

5.3 mm²/s

500.0 °C

4.8 mm²/s

600.0 °C

4.1 mm²/s

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

5.59E-7 - 6E-7 Ω·m

100.0 °C

6.4E-7 Ω·m

200.0 °C

7.32E-7 Ω·m

300.0 °C

8.17E-7 Ω·m

400.0 °C

8.97E-7 Ω·m

500.0 °C

9.74E-7 Ω·m

600.0 °C

1.05E-6 Ω·m

Chemical properties

PropertyValue

Carbon

0.08 - 0.12 %

Chromium

12 - 14 %

Manganese

1 %

Phosphorus

0.05 %

Silicon

1 %

Sulfur

0.03 %


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