DIN 17176 Grade 12CrMo19-5 quenched and tempered (+QT2)

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Description

High temperature steel for high pressure hydrogenation vessels. It is scale resistant up to 650 °C as well as chemical resistant to aggressive (e.g. sulphurous) oils. Application: hydration facilities and petroleum distillation facilities for tubes and shapes, in the quenched and tempered condition also in the steam boiler construction for overheater tubes and collectors

Related Standards

Equivalent Materials

This material data has been provided by WIAM.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.77 g/cm³

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Mechanical

PropertyTemperatureValue

Elastic modulus

20.0 °C

212 - 212.36 GPa

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95.0 °C

208.22 GPa

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100.0 °C

207 - 212 GPa

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150.0 °C

204.77 GPa

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200.0 °C

199 - 205 GPa

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205.0 °C

200.64 GPa

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260.0 °C

195.81 GPa

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300.0 °C

192 - 198 GPa

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315.0 °C

191.67 GPa

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370.0 °C

187.54 GPa

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400.0 °C

184 - 189 GPa

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425.0 °C

182.71 GPa

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485.0 °C

177.89 GPa

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500.0 °C

175 - 180 GPa

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540.0 °C

172.37 GPa

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595.0 °C

166.85 GPa

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600.0 °C

164 - 168 GPa

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650.0 °C

159.96 GPa

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705.0 °C

151.69 GPa

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760.0 °C

139.27 GPa

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Elongation

20.0 °C

16 - 18 %

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Elongation, transverse

20.0 °C

16 %

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Hardness, Brinell

20.0 °C

175 - 220 [-]

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Poisson's ratio

20.0 °C

0.31 [-]

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95.0 °C

0.3 [-]

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150.0 °C

0.3 [-]

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205.0 °C

0.3 [-]

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260.0 °C

0.3 [-]

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315.0 °C

0.3 [-]

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370.0 °C

0.3 [-]

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425.0 °C

0.3 [-]

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485.0 °C

0.32 [-]

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540.0 °C

0.3 [-]

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595.0 °C

0.31 [-]

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650.0 °C

0.32 [-]

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705.0 °C

0.33 [-]

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760.0 °C

0.33 [-]

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Shear modulus

20.0 °C

81.36 GPa

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95.0 °C

80.32 GPa

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150.0 °C

78.95 GPa

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205.0 °C

77.22 GPa

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260.0 °C

75.5 GPa

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315.0 °C

73.77 GPa

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370.0 °C

72.05 GPa

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425.0 °C

70.33 GPa

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485.0 °C

67.57 GPa

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540.0 °C

66.19 GPa

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595.0 °C

63.78 GPa

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650.0 °C

60.67 GPa

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705.0 °C

57.23 GPa

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760.0 °C

52.4 GPa

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Tensile strength

20.0 °C

570 - 740 MPa

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100.0 °C

550 MPa

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150.0 °C

525 MPa

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200.0 °C

500 MPa

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250.0 °C

470 - 480 MPa

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300.0 °C

445 - 460 MPa

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350.0 °C

425 - 440 MPa

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400.0 °C

405 - 415 MPa

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450.0 °C

390 MPa

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500.0 °C

350 MPa

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Tensile strength, transverse

20.0 °C

570 - 740 MPa

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Yield strength

20.0 °C

390 MPa

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Yield strength Rp0.2

20.0 °C

390 MPa

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100.0 °C

366 MPa

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150.0 °C

350 MPa

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200.0 °C

334 MPa

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250.0 °C

322 MPa

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300.0 °C

309 MPa

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350.0 °C

299 MPa

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400.0 °C

289 MPa

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450.0 °C

280 MPa

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500.0 °C

265 MPa

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Yield strength Rp0.2, transverse

20.0 °C

390 MPa

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

-100.0 °C

1E-5 1/K

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20.0 °C

1.08E-5 1/K

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100.0 °C

1.13E-5 - 1.14E-5 1/K

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200.0 °C

1.18E-5 - 1.2E-5 1/K

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300.0 °C

1.23E-5 - 1.24E-5 1/K

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400.0 °C

1.27E-5 - 1.28E-5 1/K

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425.0 °C

1.24E-5 1/K

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485.0 °C

1.26E-5 1/K

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500.0 °C

1.3E-5 - 1.32E-5 1/K

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540.0 °C

1.28E-5 1/K

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595.0 °C

1.29E-5 1/K

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600.0 °C

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

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650.0 °C

1.32E-5 1/K

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700.0 °C

1.33E-5 1/K

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705.0 °C

1.32E-5 1/K

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Max service temperature, long

0 - 650 °C

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Melting point

1382 - 1529 °C

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Typical for Chromium Molybdenum Steel

Specific heat capacity

-100.0 °C

423 J/(kg·K)

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20.0 °C

461 J/(kg·K)

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100.0 °C

479 - 490 J/(kg·K)

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200.0 °C

499 - 530 J/(kg·K)

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300.0 °C

517 - 560 J/(kg·K)

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400.0 °C

536 - 610 J/(kg·K)

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500.0 °C

558 - 670 J/(kg·K)

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600.0 °C

587 - 760 J/(kg·K)

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Thermal conductivity

20.0 °C

20.3 W/(m·K)

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100.0 °C

22.7 - 23 W/(m·K)

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200.0 °C

25 W/(m·K)

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300.0 °C

26 - 26.4 W/(m·K)

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400.0 °C

27 - 27.3 W/(m·K)

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500.0 °C

27.7 - 28 W/(m·K)

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600.0 °C

27.8 - 28 W/(m·K)

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700.0 °C

27.5 W/(m·K)

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Thermal diffusivity

20.0 °C

5.7 mm²/s

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100.0 °C

5.9 mm²/s

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200.0 °C

6.1 mm²/s

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300.0 °C

6 mm²/s

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400.0 °C

5.8 mm²/s

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500.0 °C

5.4 mm²/s

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600.0 °C

4.7 mm²/s

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Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

5.14E-7 Ω·m

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100.0 °C

5.6E-7 - 5.63E-7 Ω·m

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200.0 °C

6.3E-7 - 6.32E-7 Ω·m

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300.0 °C

7.1E-7 - 7.12E-7 Ω·m

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400.0 °C

7.97E-7 - 8E-7 Ω·m

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500.0 °C

8.9E-7 - 8.93E-7 Ω·m

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600.0 °C

9.96E-7 - 1E-6 Ω·m

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700.0 °C

1.12E-6 Ω·m

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Chemical properties

PropertyValue

Carbon

0.08 - 0.15 %

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Chromium

4 - 6 %

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Manganese

0.3 - 60 %

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Molybdenum

0.45 - 0.65 %

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Phosphorus

0.03 - 0.04 %

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Silicon

0.3 - 0.5 %

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Sulfur

0.03 - 0.035 %

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