DIN 17744 Grade NiCr20CuMo stabilized

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Description

The material NiCr20CuMo with the material number 2.4660 is applied in the form of strips, sheets, tubes, bars, wires and forgings for corrosion-resistant construction components. The alloy has an excellent resistance to corrosion in sulphuric, phosphoric and organic acids as well as in aqueous solutions of their salts. The resistance to nitric acid is good as well. As a result of the tailored chemical composition, the alloy also shows excellent resistance to intercrystalline corrosion and stress cracking corrosion. The molybdenum content ensures good resistance to pitting and crevice corrosion. NiCr20CuMo is applied in a wide range at temperatures of up to about 500 °C. Typical fields of application are e.g. plants for the production of sulphuric acid as well as processes that are based on sulphuric acid, such as, among others, extraction columns in the amino acid production and for the production of drugs, plants for the production of synthetic man-made materials and for the production of food as well as heat exchangers in refineries and for the production of phosphoric and hydrofluoric acid. Processing properties: Formability: good Weldability: satisfactory

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

8.1 g/cm³

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Mecánica

PropertyTemperatureValue

Dureza Brinell

20.0 °C

217 [-]

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Elongación

20.0 °C

30 %

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100.0 °C

40 %

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200.0 °C

40 %

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300.0 °C

40 %

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Estricción

20.0 °C

50 %

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Límite elástico Rp 0,2

20.0 °C

240 MPa

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100.0 °C

210 MPa

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200.0 °C

180 MPa

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300.0 °C

140 MPa

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Módulo elástico

20.0 °C

195 GPa

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Resistencia a la tracción

20.0 °C

550 MPa

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100.0 °C

520 MPa

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200.0 °C

500 MPa

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300.0 °C

480 MPa

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Aplicaciones térmicas

PropertyTemperatureValueComment

Calor específico

20.0 °C

500 J/(kg·K)

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Coeficiente de dilatación térmica

100.0 °C

1.5E-5 1/K

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200.0 °C

1.57E-5 1/K

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300.0 °C

1.63E-5 1/K

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400.0 °C

1.68E-5 1/K

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500.0 °C

1.72E-5 1/K

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600.0 °C

1.74E-5 1/K

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700.0 °C

1.76E-5 1/K

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800.0 °C

1.78E-5 1/K

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Conductividad térmica

20.0 °C

12.3 W/(m·K)

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100.0 °C

13.1 W/(m·K)

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200.0 °C

14.8 W/(m·K)

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300.0 °C

16.5 W/(m·K)

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400.0 °C

18.1 W/(m·K)

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500.0 °C

19.7 W/(m·K)

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600.0 °C

21 W/(m·K)

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Temperatura de fusión

1200 - 1480 °C

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Typical for Nickel Chromium Iron Alloy

Temperatura máx. de funcionamiento, largo

0 - 500 °C

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Eléctrico

PropertyTemperatureValue

Resistividad eléctrica

20.0 °C

1.08E-6 Ω·m

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Chemical properties

PropertyValue

Azufre

0.015 %

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Carbono

0.07 %

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Cobalto

1.5 %

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Cobre

3 - 4 %

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Cromo

19 - 21 %

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Fósforo

0.03 %

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Hierro

28.4 %

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Manganeso

2 %

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Molibdeno

2 - 3 %

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Níquel

32 - 38 %

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Silicona

1 %

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