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EN 10273 Grade P460NH – High-Temperature Normalized Steel for Pressure Vessel Applications

The steel P460NH is a high temperature steel suitable for welding. Application: use in pressure vessel engineering.

Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.84 - 7.85 g/cm³

Mechanical

PropertyTemperatureValueComment

Elastic modulus

-100.0 °C

217 GPa

20.0 °C

212 GPa

100.0 °C

207 GPa

200.0 °C

199 GPa

300.0 °C

192 GPa

400.0 °C

184 GPa

500.0 °C

175 GPa

600.0 °C

164 GPa

Elongation

20.0 °C

16 - 17 %

Poisson's ratio

23.0 °C

0.3 [-]

Typical for Steel

Tensile strength

20.0 °C

520 - 720 MPa

Yield strength

20.0 °C

380 - 460 MPa

Yield strength Rp0.2

50.0 °C

368 - 445 MPa

100.0 °C

346 - 419 MPa

150.0 °C

320 - 388 MPa

200.0 °C

294 - 356 MPa

250.0 °C

270 - 326 MPa

300.0 °C

248 - 300 MPa

350.0 °C

230 - 278 MPa

400.0 °C

216 - 261 MPa

Thermal

PropertyTemperatureValue

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

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

-100.0 °C

34.7 W/(m·K)

20.0 °C

39.7 W/(m·K)

100.0 °C

40.9 W/(m·K)

200.0 °C

41 W/(m·K)

300.0 °C

39.9 W/(m·K)

400.0 °C

38.2 W/(m·K)

500.0 °C

36.1 W/(m·K)

600.0 °C

33.8 W/(m·K)

Thermal diffusivity

-100.0 °C

11.9 mm²/s

20.0 °C

11 mm²/s

100.0 °C

10.5 mm²/s

200.0 °C

9.9 mm²/s

300.0 °C

9.1 mm²/s

400.0 °C

8.1 mm²/s

500.0 °C

6.9 mm²/s

600.0 °C

5.7 mm²/s

Electrical

PropertyTemperatureValue

Electrical resistivity

-100.0 °C

1.97E-7 Ω·m

20.0 °C

2.62E-7 Ω·m

100.0 °C

3.13E-7 Ω·m

200.0 °C

3.85E-7 Ω·m

300.0 °C

4.7E-7 Ω·m

400.0 °C

5.69E-7 Ω·m

500.0 °C

6.85E-7 Ω·m

600.0 °C

8.2E-7 Ω·m

Chemical properties

PropertyValue

Aluminium

0.02 %

Carbon

0.2 %

Chromium

0.3 %

Copper

0.7 %

Manganese

1 - 1.7 %

Molybdenum

0.1 %

Nickel

0.8 %

Niobium

0.05 %

Nitrogen

0.03 %

Phosphorus

0.03 %

Silicon

0.6 %

Sulfur

0.01 - 0.025 %

Titanium

0.03 %

Vanadium

0.2 %


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    1. EN 10217-3 Grade P460NH: High-Temperature Creep-Resistant Weldable Steel for Pressure Vessels & Pipelines
    2. EN 10273 Grade 16Mo3 Steel – Normalized or Normalized Formed (+N) for High-Temperature Applications
    3. EN 10216-3 Grade P460NH – High‑Temperature Weldable Steel (Normalized/Normalized Formed +N)
    4. EN 10273 Grade P275NH Steel: Normalized or Normalized Formed (+N) – High-Temperature Pressure Vessel Grade
    5. EN 10273: Grade P355GH – Normalized or Normalized Formed Steel (+N)
    6. EN 10273 Grade P355NH – Normalized & Normalized-Formed (N) High‑Temperature Steel for Pressure Vessels
    7. EN 10273 P265GH (Normalized / Normalized‑Formed +N) – Premium High‑Temperature Steel for Boiler & Pressure Vessel Engineering
    8. EN 10273 Grade P235GH – Normalized/Normalized Formed (+N) High‑Temperature Steel
    9. EN 10273 Grade P250GH: Normalized & Normalized Formed Steel for High-Temperature Boiler Applications
    10. EN 10273: P295GH High-Temperature Steel – Normalized & Normalized Formed (+N)