EN 10263-4 Grade 34CrMo4 quenched and tempered (+QT)

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Description

The cold-upsettable steel 34 CrMo 4 can be cold-formed with a medium to high rate of forming according to the usual forming methods on single-stage and multi-stage presses. It is used for hexagon screws and hexagon socket head cap screw of strength class 8.8 in the thick dimension range, of strength class 10.9 in the medium and of strength class 12.9 in the thin dimension range it is used for high-strength parts manufactured according to drawings.

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

7.81 g/cm³

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Mecánica

PropertyTemperatureValue

Coeficiente de Poisson

20.0 °C

0.28 [-]

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100.0 °C

0.29 [-]

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200.0 °C

0.3 [-]

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300.0 °C

0.3 [-]

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400.0 °C

0.3 [-]

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500.0 °C

0.31 [-]

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Elongación

20.0 °C

11 - 14 %

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Estricción

20.0 °C

45 - 500 %

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Límite elástico

20.0 °C

550 - 800 MPa

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Módulo de cizallamiento

20.0 °C

81.88 GPa

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100.0 °C

79.57 GPa

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200.0 °C

76.63 GPa

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300.0 °C

73.54 GPa

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400.0 °C

69.99 GPa

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500.0 °C

65.66 GPa

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Módulo elástico

-100.0 °C

217 GPa

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20.0 °C

210.27 - 212 GPa

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100.0 °C

205.17 - 207 GPa

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200.0 °C

198.68 - 199 GPa

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300.0 °C

191.11 - 192 GPa

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400.0 °C

182.31 - 184 GPa

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500.0 °C

171.64 - 175 GPa

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600.0 °C

164 GPa

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Resistencia a la tracción

20.0 °C

800 - 1200 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

1.05E-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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Conductividad térmica

20.0 °C

39.6 W/(m·K)

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100.0 °C

41.6 W/(m·K)

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200.0 °C

41.8 W/(m·K)

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300.0 °C

40.3 W/(m·K)

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400.0 °C

38.2 W/(m·K)

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500.0 °C

36 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

10.8 mm²/s

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200.0 °C

10.1 mm²/s

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300.0 °C

9.2 mm²/s

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400.0 °C

8.1 mm²/s

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500.0 °C

7 mm²/s

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600.0 °C

5.7 mm²/s

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Temperatura de fusión

1382 - 1529 °C

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Typical for Chromium Molybdenum Steel

Eléctrico

PropertyTemperatureValue

Resistividad eléctrica

20.0 °C

2.63E-7 Ω·m

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100.0 °C

3.08E-7 Ω·m

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200.0 °C

3.78E-7 Ω·m

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300.0 °C

4.66E-7 Ω·m

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400.0 °C

5.69E-7 Ω·m

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500.0 °C

6.87E-7 Ω·m

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600.0 °C

8.26E-7 Ω·m

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Chemical properties

PropertyValue

Azufre

0.035 %

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Carbono

0.3 - 0.37 %

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Cromo

0.9 - 1.2 %

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Fósforo

0.04 %

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Manganeso

0.6 - 0.9 %

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Molibdeno

0.15 - 0.3 %

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Silicona

0.4 %

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