EN 10250-2 Grade 20Mn5 quenched and tempered (+QT)

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Description

High-temperature tempered steel, application as larger forged parts for machine engineering, for steam boiler and pressure vessels. Further application for fastening elements at increased temperatures.

Related Standards

Equivalent Materials

Los datos sobre este material han sido proporcionados por WIAM.

A menos que se indique lo contrario, todas las medidas corresponden a condiciones de temperatura ambiente. A menos que se indique lo contrario, se utilizan las unidades del SI.
Las normas armonizadas son similares a uno o varios estándares del proveedor. Es posible que algunas normas armonizadas se ajusten al estándar original, mientras que otras pueden quedar fuera de su alcance.

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Propiedades

General

PropertyTemperatureValue

Densidad

20.0 °C

7.82 g/cm³

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Mecánica

PropertyTemperatureValueComment

Coeficiente de Poisson

23.0 °C

0.29 [-]

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Typical for Low Carbon Steel

Elongación

20.0 °C

16 - 20 %

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Elongación transversal

20.0 °C

18 %

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Límite elástico

100.0 °C

260 - 280 MPa

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200.0 °C

245 - 265 MPa

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250.0 °C

226 - 235 MPa

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300.0 °C

216 - 226 MPa

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350.0 °C

196 - 206 MPa

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Límite elástico Rp 0,2

20.0 °C

300 - 400 MPa

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Módulo de cizallamiento

23.0 °C

82 GPa

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Typical for Low Carbon Steel

Módulo elástico

-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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Resistencia a la tracción

20.0 °C

500 - 550 MPa

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Resistencia a la tracción transversal

20.0 °C

500 MPa

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Aplicaciones térmicas

PropertyTemperatureValueComment

Calor específico

-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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Coeficiente de dilatación térmica

-100.0 °C

1.08E-5 1/K

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20.0 °C

1.19E-5 1/K

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100.0 °C

1.25E-5 1/K

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200.0 °C

1.3E-5 1/K

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300.0 °C

1.36E-5 1/K

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400.0 °C

1.41E-5 1/K

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500.0 °C

1.45E-5 1/K

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600.0 °C

1.49E-5 1/K

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Conductividad térmica

20.0 °C

39.6 W/(m·K)

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100.0 °C

41 W/(m·K)

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200.0 °C

41 W/(m·K)

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300.0 °C

39.9 W/(m·K)

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400.0 °C

38.1 W/(m·K)

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500.0 °C

35.9 W/(m·K)

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600.0 °C

33.6 W/(m·K)

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Difusividad térmica

20.0 °C

11 mm²/s

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100.0 °C

10.6 mm²/s

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200.0 °C

9.9 mm²/s

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300.0 °C

9 mm²/s

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400.0 °C

8.1 mm²/s

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500.0 °C

6.9 mm²/s

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600.0 °C

5.7 mm²/s

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Temperatura de fusión

1480 - 1526 °C

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Typical for Low Carbon Steel

Temperatura máx. de funcionamiento

500 °C

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Typical for Carbon Steel

Eléctrico

PropertyTemperatureValue

Resistividad eléctrica

20.0 °C

2.63E-7 Ω·m

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100.0 °C

3.12E-7 Ω·m

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200.0 °C

3.85E-7 Ω·m

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300.0 °C

4.7E-7 Ω·m

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400.0 °C

5.71E-7 Ω·m

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500.0 °C

6.88E-7 Ω·m

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600.0 °C

8.25E-7 Ω·m

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Magnético

PropertyValueComment

Temperatura de Curie

770 °C

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Typical for Low Carbon Steel

Chemical properties

PropertyValue

Aluminio

0.02 %

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Azufre

0.035 %

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Carbono

0.17 - 0.23 %

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Cromo

0.4 %

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Fósforo

0.04 %

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Manganeso

1 - 1.5 %

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Molibdeno

0.1 %

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Níquel

0.4 %

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Silicona

0.4 %

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