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DIN 17155 Grade 10CrMo9-10 – Quenched & Tempered High‑Temperature Steel for Pressure Vessels & Boilers

High temperature steel for the pressure vessel and steam boiler construction up to 530 °C. Application: overheater and hot steam tubes, collectors, apparatus construction, petroleum industry

Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.84 g/cm³

Mechanical

PropertyTemperatureValue

Elastic modulus

-100.0 °C

217 GPa

20.0 °C

212 - 212.43 GPa

100.0 °C

207 - 209 GPa

200.0 °C

199 - 202 GPa

300.0 °C

192 - 195 GPa

400.0 °C

184 - 187 GPa

500.0 °C

174.89 - 177 GPa

600.0 °C

163.15 - 167 GPa

Elongation

20.0 °C

17 - 22 %

Elongation, transverse

20.0 °C

18 %

Hardness, Brinell

20.0 °C

130 - 175 [-]

Poisson's ratio

20.0 °C

0.28 [-]

100.0 °C

0.29 [-]

200.0 °C

0.29 [-]

300.0 °C

0.29 [-]

400.0 °C

0.3 [-]

500.0 °C

0.31 [-]

600.0 °C

0.31 [-]

Shear modulus

20.0 °C

82.81 GPa

100.0 °C

80.65 GPa

200.0 °C

77.87 GPa

300.0 °C

74.93 GPa

400.0 °C

71.22 GPa

500.0 °C

66.9 GPa

600.0 °C

62.11 GPa

Tensile strength

20.0 °C

430 - 630 MPa

200.0 °C

390 MPa

250.0 °C

390 MPa

300.0 °C

390 MPa

350.0 °C

390 MPa

400.0 °C

385 MPa

450.0 °C

365 MPa

500.0 °C

335 MPa

Tensile strength, transverse

20.0 °C

450 - 600 MPa

Yield strength Rp0.2

20.0 °C

240 - 310 MPa

100.0 °C

225 - 275 MPa

150.0 °C

215 - 260 MPa

200.0 °C

205 - 245 MPa

250.0 °C

200 - 240 MPa

300.0 °C

190 - 230 MPa

350.0 °C

175 - 215 MPa

400.0 °C

165 - 205 MPa

450.0 °C

155 - 195 MPa

500.0 °C

145 - 185 MPa

Yield strength Rp0.2, transverse

20.0 °C

260 - 280 MPa

Thermal

PropertyTemperatureValueComment

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 - 1.22E-5 1/K

200.0 °C

1.27E-5 - 1.29E-5 1/K

300.0 °C

1.32E-5 - 1.34E-5 1/K

400.0 °C

1.36E-5 - 1.4E-5 1/K

500.0 °C

1.4E-5 - 1.43E-5 1/K

600.0 °C

1.44E-5 - 1.46E-5 1/K

Max service temperature, long

0 - 530 °C

Melting point

1382 - 1529 °C

Typical for Chromium Molybdenum Steel

Specific heat capacity

-100.0 °C

423 J/(kg·K)

20.0 °C

461 J/(kg·K)

100.0 °C

479 - 500 J/(kg·K)

200.0 °C

499 - 540 J/(kg·K)

300.0 °C

517 - 580 J/(kg·K)

400.0 °C

536 - 620 J/(kg·K)

500.0 °C

558 - 690 J/(kg·K)

600.0 °C

587 - 780 J/(kg·K)

Thermal conductivity

20.0 °C

34.9 W/(m·K)

100.0 °C

37 - 37.3 W/(m·K)

200.0 °C

38 - 38.2 W/(m·K)

300.0 °C

37.8 - 38 W/(m·K)

400.0 °C

36.6 - 37 W/(m·K)

500.0 °C

35 - 35.2 W/(m·K)

600.0 °C

33 - 33.6 W/(m·K)

Thermal diffusivity

20.0 °C

9.7 mm²/s

100.0 °C

9.6 mm²/s

200.0 °C

9.2 mm²/s

300.0 °C

8.5 mm²/s

400.0 °C

7.8 mm²/s

500.0 °C

6.8 mm²/s

600.0 °C

5.7 mm²/s

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

2.98E-7 Ω·m

100.0 °C

3.4E-7 - 3.43E-7 Ω·m

200.0 °C

4.1E-7 - 4.13E-7 Ω·m

300.0 °C

4.97E-7 - 5E-7 Ω·m

400.0 °C

5.9E-7 - 5.95E-7 Ω·m

500.0 °C

7E-7 - 7.03E-7 Ω·m

600.0 °C

8.2E-7 - 8.25E-7 Ω·m

Chemical properties

PropertyValue

Carbon

0.06 - 0.15 %

Chromium

2 - 2.5 %

Manganese

0.4 - 0.7 %

Molybdenum

0.9 - 1.2 %

Nickel

0.5 %

Phosphorus

0.04 %

Silicon

0.4 - 0.5 %

Sulfur

0.03 %


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