EN 10270-3 Grade X7CrNiAl17-7 precipitation hardened (+P)

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Description

The stainless steel X7CrNiAl17-7 is usually used cold drawn as wire up to 10 mm diameter for springs or spring parts. It has a high fatigue strength and a raised high-temperature strength, but a reduced corrosion resistance and is applicable up to 300°C.

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

7.92 g/cm³

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Mecánica

PropertyTemperatureValueComment

Coeficiente de Poisson

23.0 °C

0.3 [-]

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Typical for Steel

Módulo de cizallamiento

20.0 °C

73 - 78 GPa

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Módulo elástico

-100.0 °C

206 GPa

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20.0 °C

190 - 200 GPa

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100.0 °C

190 GPa

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200.0 °C

182 GPa

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300.0 °C

174 GPa

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400.0 °C

166 GPa

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500.0 °C

158 GPa

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600.0 °C

150 GPa

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700.0 °C

142 GPa

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800.0 °C

134 GPa

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Resistencia a la tracción

20.0 °C

1500 - 2275 MPa

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Aplicaciones térmicas

PropertyTemperatureValue

Calor específico

-100.0 °C

440 J/(kg·K)

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20.0 °C

472 J/(kg·K)

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100.0 °C

487 J/(kg·K)

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200.0 °C

503 J/(kg·K)

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300.0 °C

512 J/(kg·K)

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400.0 °C

520 J/(kg·K)

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500.0 °C

530 J/(kg·K)

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600.0 °C

541 J/(kg·K)

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700.0 °C

551 J/(kg·K)

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800.0 °C

559 J/(kg·K)

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Coeficiente de dilatación térmica

-100.0 °C

1.49E-5 1/K

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20.0 °C

1.61E-5 1/K

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100.0 °C

1.67E-5 1/K

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200.0 °C

1.72E-5 1/K

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300.0 °C

1.77E-5 1/K

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400.0 °C

1.81E-5 1/K

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500.0 °C

1.84E-5 1/K

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600.0 °C

1.88E-5 1/K

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700.0 °C

1.91E-5 1/K

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800.0 °C

1.94E-5 1/K

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Conductividad térmica

-100.0 °C

11.7 W/(m·K)

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20.0 °C

14.5 W/(m·K)

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100.0 °C

16 W/(m·K)

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200.0 °C

17.6 W/(m·K)

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300.0 °C

19.1 W/(m·K)

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400.0 °C

20.4 W/(m·K)

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500.0 °C

21.9 W/(m·K)

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600.0 °C

23.3 W/(m·K)

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700.0 °C

24.7 W/(m·K)

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800.0 °C

26.1 W/(m·K)

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Difusividad térmica

-100.0 °C

3.7 mm²/s

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20.0 °C

3.9 mm²/s

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100.0 °C

4.3 mm²/s

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200.0 °C

4.3 mm²/s

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300.0 °C

4.6 mm²/s

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400.0 °C

4.7 mm²/s

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500.0 °C

4.9 mm²/s

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600.0 °C

5 mm²/s

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700.0 °C

5.3 mm²/s

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800.0 °C

5.7 mm²/s

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Temperatura máx. de funcionamiento, largo

-150 - 350 °C

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Eléctrico

PropertyTemperatureValue

Resistividad eléctrica

-100.0 °C

5.86E-7 Ω·m

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20.0 °C

6.92E-7 Ω·m

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100.0 °C

7.58E-7 Ω·m

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200.0 °C

8.36E-7 Ω·m

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300.0 °C

9.07E-7 Ω·m

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400.0 °C

9.73E-7 Ω·m

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500.0 °C

1.02E-6 Ω·m

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600.0 °C

1.06E-6 Ω·m

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700.0 °C

1.1E-6 Ω·m

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800.0 °C

1.13E-6 Ω·m

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Chemical properties

PropertyValue

Aluminio

0.7 - 1.5 %

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Azufre

0.015 %

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Carbono

0.09 %

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Cromo

16 - 18 %

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Fósforo

0.04 %

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Manganeso

1 %

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Níquel

6.5 - 7.8 %

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Silicona

0.7 %

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Technological properties

Property
Features

Spring