EN 10222-4 Grade P420NH quenched and tempered (+QT)

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Description

Steel P420NH is a weldable fine grained steel with a yield strength of max. 420 N/mm². Application: pressure vessel construction, apparatus engineering, general machine and toolbuilding.

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

7.84 g/cm³

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Mechanical

PropertyTemperatureValueComment

Elastic modulus

-100.0 °C

217 GPa

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20.0 °C

212 GPa

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100.0 °C

207 GPa

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200.0 °C

199 GPa

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300.0 °C

192 GPa

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400.0 °C

184 GPa

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500.0 °C

175 GPa

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600.0 °C

164 GPa

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Poisson's ratio

23.0 °C

0.3 [-]

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Typical for Steel

Yield strength

200.0 °C

343 MPa

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250.0 °C

314 MPa

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300.0 °C

294 MPa

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350.0 °C

265 MPa

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400.0 °C

235 MPa

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Thermal

PropertyTemperatureValue

Coefficient of thermal expansion

-100.0 °C

1.05E-5 1/K

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20.0 °C

1.15E-5 1/K

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100.0 °C

1.21E-5 1/K

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200.0 °C

1.27E-5 1/K

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300.0 °C

1.32E-5 1/K

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400.0 °C

1.36E-5 1/K

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500.0 °C

1.4E-5 1/K

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600.0 °C

1.44E-5 1/K

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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 J/(kg·K)

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200.0 °C

499 J/(kg·K)

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300.0 °C

517 J/(kg·K)

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400.0 °C

536 J/(kg·K)

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500.0 °C

558 J/(kg·K)

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600.0 °C

587 J/(kg·K)

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Thermal conductivity

-100.0 °C

35.4 W/(m·K)

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20.0 °C

40.4 W/(m·K)

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100.0 °C

42 W/(m·K)

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200.0 °C

42 W/(m·K)

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300.0 °C

40.8 W/(m·K)

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400.0 °C

38.9 W/(m·K)

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500.0 °C

36.6 W/(m·K)

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600.0 °C

34.3 W/(m·K)

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Thermal diffusivity

-100.0 °C

12.1 mm²/s

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20.0 °C

11.2 mm²/s

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100.0 °C

10.8 mm²/s

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200.0 °C

10.1 mm²/s

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300.0 °C

9.3 mm²/s

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400.0 °C

8.3 mm²/s

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500.0 °C

7 mm²/s

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600.0 °C

5.8 mm²/s

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Electrical

PropertyTemperatureValue

Electrical resistivity

-100.0 °C

1.93E-7 Ω·m

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20.0 °C

2.58E-7 Ω·m

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100.0 °C

3.05E-7 Ω·m

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200.0 °C

3.76E-7 Ω·m

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300.0 °C

4.6E-7 Ω·m

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400.0 °C

5.59E-7 Ω·m

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500.0 °C

6.75E-7 Ω·m

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600.0 °C

8.08E-7 Ω·m

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Chemical properties

PropertyValue

Aluminium

0.02 - 0.06 %

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Carbon

0.2 %

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Chromium

0.3 %

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Copper

0.2 %

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Manganese

1 - 1.7 %

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Molybdenum

0.1 %

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Nickel

1 %

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Niobium

0.05 %

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Nitrogen

0.02 %

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Phosphorus

0.03 %

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Silicon

0.1 - 0.6 %

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Sulfur

0.01 - 0.015 %

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Vanadium

0.2 %

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