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DIN 17175 Grade 14MoV6-3 Quenched & Tempered Steel – High-Temperature, High-Pressure Boiler Applications

High temperature steel for the steam boiler construction at high pressures in the range of 500 to max. 560 °C. Application: pre welded collars, flanges

Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.84 g/cm³

50.0 °C

7.84 g/cm³

100.0 °C

7.82 g/cm³

150.0 °C

7.81 g/cm³

200.0 °C

7.79 g/cm³

250.0 °C

7.78 g/cm³

300.0 °C

7.76 g/cm³

350.0 °C

7.74 g/cm³

400.0 °C

7.72 g/cm³

450.0 °C

7.71 g/cm³

500.0 °C

7.69 g/cm³

550.0 °C

7.67 g/cm³

600.0 °C

7.65 g/cm³

Mechanical

PropertyTemperatureValue

Elastic modulus

-100.0 °C

217 GPa

20.0 °C

212 - 212.78 GPa

50.0 °C

211.5 GPa

100.0 °C

207 - 209 GPa

150.0 °C

205.23 GPa

200.0 °C

199 - 202 GPa

250.0 °C

197.77 GPa

300.0 °C

192 - 194 GPa

350.0 °C

189.92 GPa

400.0 °C

184 - 186.1 GPa

450.0 °C

181.98 GPa

500.0 °C

175 - 178 GPa

550.0 °C

173.74 GPa

600.0 °C

164 - 169.42 GPa

Elongation

20.0 °C

18 - 20 %

Elongation, transverse

20.0 °C

18 %

Hardness, Brinell

20.0 °C

145 - 190 [-]

Poisson's ratio

20.0 °C

0.29 [-]

50.0 °C

0.29 [-]

100.0 °C

0.28 [-]

150.0 °C

0.29 [-]

200.0 °C

0.29 [-]

250.0 °C

0.29 [-]

300.0 °C

0.3 [-]

350.0 °C

0.3 [-]

400.0 °C

0.3 [-]

450.0 °C

0.31 [-]

500.0 °C

0.31 [-]

550.0 °C

0.32 [-]

600.0 °C

0.32 [-]

Shear modulus

20.0 °C

82.8 GPa

50.0 °C

82.31 GPa

100.0 °C

81.23 GPa

150.0 °C

79.76 GPa

200.0 °C

78.28 GPa

250.0 °C

76.62 GPa

300.0 °C

74.85 GPa

350.0 °C

73.18 GPa

400.0 °C

71.42 GPa

450.0 °C

69.65 GPa

500.0 °C

67.79 GPa

550.0 °C

66.02 GPa

600.0 °C

64.16 GPa

Tensile strength

20.0 °C

460 - 690 MPa

Tensile strength, transverse

20.0 °C

460 - 610 MPa

Yield strength Rp0.2

20.0 °C

300 - 320 MPa

100.0 °C

280 - 300 MPa

150.0 °C

265 - 285 MPa

200.0 °C

250 - 270 MPa

250.0 °C

235 - 255 MPa

300.0 °C

210 - 230 MPa

350.0 °C

195 - 215 MPa

400.0 °C

180 - 200 MPa

450.0 °C

165 - 185 MPa

500.0 °C

150 - 170 MPa

Yield strength Rp0.2, transverse

20.0 °C

310 - 320 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

400 - 550 °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

46.3 W/(m·K)

100.0 °C

47 - 47.1 W/(m·K)

200.0 °C

46 - 46.2 W/(m·K)

300.0 °C

44 - 44.1 W/(m·K)

400.0 °C

41 - 41.3 W/(m·K)

500.0 °C

38.6 - 39 W/(m·K)

600.0 °C

35.9 - 36 W/(m·K)

Thermal diffusivity

20.0 °C

12.8 mm²/s

100.0 °C

12.1 mm²/s

200.0 °C

11.1 mm²/s

300.0 °C

10 mm²/s

400.0 °C

8.8 mm²/s

500.0 °C

7.4 mm²/s

600.0 °C

4.7 mm²/s

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

2.25E-7 Ω·m

50.0 °C

2.41E-7 Ω·m

100.0 °C

2.7E-7 - 2.72E-7 Ω·m

150.0 °C

3.04E-7 Ω·m

200.0 °C

3.4E-7 - 3.42E-7 Ω·m

250.0 °C

3.83E-7 Ω·m

300.0 °C

4.26E-7 - 4.3E-7 Ω·m

350.0 °C

4.74E-7 Ω·m

400.0 °C

5.26E-7 - 5.3E-7 Ω·m

450.0 °C

5.83E-7 Ω·m

500.0 °C

6.4E-7 Ω·m

550.0 °C

7.04E-7 Ω·m

600.0 °C

7.7E-7 - 7.73E-7 Ω·m

Chemical properties

PropertyValue

Carbon

0.1 - 0.18 %

Chromium

0.3 - 0.6 %

Manganese

0.4 - 0.7 %

Molybdenum

0.5 - 0.7 %

Phosphorus

0.04 %

Silicon

0.1 - 0.4 %

Sulfur

0.03 %

Vanadium

0.22 - 0.32 %


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