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EN 10273 Grade 16Mo3 Steel – Normalized or Normalized Formed (+N) for High-Temperature Applications

The steel 16Mo3 is a high temperature steel. Application: pressure vessel and steam boiler construction for vaporizor ducts, ducts, and collector ducts, heat exchangers, welding-neck laps and flanges. Maximum temperature for continuous use: 530 °C.

Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.85 - 7.86 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

7.77 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

7.7 g/cm³

500.0 °C

7.68 g/cm³

550.0 °C

7.66 g/cm³

600.0 °C

7.64 g/cm³

Mechanical

PropertyTemperatureValue

Elastic modulus

-100.0 °C

217 GPa

20.0 °C

212 - 212.48 GPa

50.0 °C

211.6 GPa

100.0 °C

207 - 209.25 GPa

150.0 °C

206.11 GPa

200.0 °C

199 - 202.48 GPa

250.0 °C

198.36 GPa

300.0 °C

192 - 194.14 GPa

350.0 °C

189.82 GPa

400.0 °C

184 - 185.51 GPa

450.0 °C

180.99 GPa

500.0 °C

175 - 176.48 GPa

550.0 °C

171.97 GPa

600.0 °C

164 - 166.97 GPa

Elongation

20.0 °C

19 - 24 %

Poisson's ratio

20.0 °C

0.29 [-]

50.0 °C

0.29 [-]

100.0 °C

0.29 [-]

150.0 °C

0.29 [-]

200.0 °C

0.29 [-]

250.0 °C

0.29 [-]

300.0 °C

0.29 [-]

350.0 °C

0.29 [-]

400.0 °C

0.3 [-]

450.0 °C

0.3 [-]

500.0 °C

0.3 [-]

550.0 °C

0.3 [-]

600.0 °C

0.3 [-]

Shear modulus

20.0 °C

82.6 GPa

50.0 °C

82.21 GPa

100.0 °C

81.23 GPa

150.0 °C

79.95 GPa

200.0 °C

78.48 GPa

250.0 °C

76.81 GPa

300.0 °C

75.05 GPa

350.0 °C

73.38 GPa

400.0 °C

71.61 GPa

450.0 °C

69.75 GPa

500.0 °C

67.98 GPa

550.0 °C

66.22 GPa

600.0 °C

64.35 GPa

Tensile strength

20.0 °C

420 - 590 MPa

Yield strength

20.0 °C

220 - 275 MPa

Yield strength Rp0.2

50.0 °C

218 - 273 MPa

100.0 °C

211 - 264 MPa

150.0 °C

200 - 250 MPa

200.0 °C

186 - 233 MPa

250.0 °C

171 - 213 MPa

300.0 °C

155 - 194 MPa

350.0 °C

140 - 175 MPa

400.0 °C

127 - 159 MPa

450.0 °C

118 - 147 MPa

500.0 °C

113 - 141 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/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 - 530 °C

Melting point

1382 - 1529 °C

Typical for Molybdenum Steel

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

20.0 °C

52.1 W/(m·K)

100.0 °C

51.2 W/(m·K)

200.0 °C

48.7 W/(m·K)

300.0 °C

45.5 W/(m·K)

400.0 °C

42.3 W/(m·K)

500.0 °C

39.1 W/(m·K)

600.0 °C

36 W/(m·K)

Thermal diffusivity

20.0 °C

14.4 mm²/s

100.0 °C

13.2 mm²/s

200.0 °C

11.7 mm²/s

300.0 °C

10.3 mm²/s

400.0 °C

9 mm²/s

500.0 °C

7.5 mm²/s

600.0 °C

6 mm²/s

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

2E-7 - 2.16E-7 Ω·m

50.0 °C

2.37E-7 Ω·m

100.0 °C

2.5E-7 - 2.68E-7 Ω·m

150.0 °C

3.02E-7 Ω·m

200.0 °C

3.24E-7 - 3.39E-7 Ω·m

250.0 °C

3.8E-7 Ω·m

300.0 °C

4.12E-7 - 4.25E-7 Ω·m

350.0 °C

4.74E-7 Ω·m

400.0 °C

5.14E-7 - 5.27E-7 Ω·m

450.0 °C

5.83E-7 Ω·m

500.0 °C

6.33E-7 - 6.42E-7 Ω·m

550.0 °C

7.08E-7 Ω·m

600.0 °C

7.69E-7 - 7.78E-7 Ω·m

Chemical properties

PropertyValue

Carbon

0.12 - 0.2 %

Chromium

0.3 %

Copper

0.3 %

Manganese

0.4 - 0.9 %

Molybdenum

0.25 - 0.35 %

Nickel

0.3 %

Nitrogen

0.01 %

Phosphorus

0.03 %

Silicon

0.35 %

Sulfur

0.01 - 0.025 %


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