EN 10216-2 Grade 8MoB5-4 normalized or normalized formed (+N)

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Description

Seamless tubes of the high-temperature 8MoB5-4 are used in steam boiler and pipeline construction, pressure vessel and apparatus engineering, especially in chemical industry and power station construction at temperatures from approx. 200 °C to maximum 400 °C and simultaneously high pressures. The total load and the special scaling circumstances can decrease or increase the temperature limit. Weldability is available.

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

PropertyTemperatureValueComment

Densidad

23.0 °C

7.8 - 7.9 g/cm³

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Typical for Molybdenum Steel

Mecánica

PropertyTemperatureValueComment

Coeficiente de Poisson

23.0 °C

0.29 [-]

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Typical for Molybdenum Steel

Elongación

20.0 °C

19 %

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Elongación transversal

20.0 °C

17 %

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Límite elástico Rp 0,2

20.0 °C

400 MPa

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100.0 °C

368 MPa

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150.0 °C

368 MPa

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200.0 °C

368 MPa

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250.0 °C

368 MPa

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300.0 °C

368 MPa

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350.0 °C

368 MPa

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400.0 °C

368 MPa

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Límite elástico transversal Rp 0,2

20.0 °C

400 MPa

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Módulo elástico

23.0 °C

200 - 215 GPa

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Typical for Molybdenum Steel

Resistencia a la tracción

20.0 °C

540 - 690 MPa

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Resistencia a la tracción transversal

20.0 °C

540 - 690 MPa

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Aplicaciones térmicas

PropertyTemperatureValueComment

Calor específico

23.0 °C

456 J/(kg·K)

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Typical for Molybdenum Steel

Coeficiente de dilatación térmica

23.0 °C

1.29E-5 1/K

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Typical for Molybdenum Steel

Conductividad térmica

23.0 °C

37 - 48 W/(m·K)

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Typical for Molybdenum Steel

Temperatura de fusión

1382 - 1529 °C

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Typical for Molybdenum Steel

Temperatura máx. de funcionamiento, largo

200 - 550 °C

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Chemical properties

PropertyValue

Aluminio

0.06 %

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Azufre

0.01 - 0.02 %

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Boro

2E-3 - 6E-3 %

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Carbono

0.06 - 0.1 %

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Cobre

0.3 %

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Cromo

0.2 %

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Fósforo

0.03 %

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Manganeso

0.6 - 0.8 %

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Molibdeno

0.4 - 0.5 %

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Silicona

0.1 - 0.35 %

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Titanio

0.06 %

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