DIN 17742 Grade NiCr8020 solution annealed (+AT)

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Description

The material NiCr8020 with the material number 2.4869 is applied in the form of strips, sheets, tubes and wires (see also heating conductor alloys according to DIN 17470 or electrical resistance alloys according to DIN 17471) for furnace construction components and heating conductors. It is a nickel-chromium heating conductor alloy for operating temperatures of up to 1150 °C and often contains additives of rare earths for a higher resistance to oxidation, especially with frequent switching operations or broad temperature variations. The resistance to atmospheric corrosion at 20 °C is high up to the upper operating temperature the resistance to air and other oxygen-containing gases as well as to nitrogen-containing low-oxygen gases is high as well, yet it is low to oxidizing as well as reducing gases containing sulphur. The resistance to carbonizing is high. Application for industrial electric furnaces, enamelling furnaces, household appliances, night-current storage space-heaters.

Related Standards

DIN 17742

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

Property	Temperature	Value
Densidad	20.0 °C	8.2 g/cm³ Show Material materials with Densidad of 8.2 g/cm³

Mecánica

Property	Temperature	Value
Dureza Brinell	20.0 °C	230 [-] Show Material materials with Dureza Brinell of 230 [-]
Elongación	20.0 °C	25 % Show Material materials with Elongación of 25 %
Límite elástico Rp 0,2	20.0 °C	220 MPa Show Material materials with Límite elástico Rp 0,2 of 220 MPa
Límite elástico Rp 1,0	20.0 °C	250 MPa Show Material materials with Límite elástico Rp 1,0 of 250 MPa
Módulo elástico	20.0 °C	200 GPa Show Material materials with Módulo elástico of 200 GPa
Resistencia a la tracción	20.0 °C	600 MPa Show Material materials with Resistencia a la tracción of 600 MPa

Aplicaciones térmicas

Property	Temperature	Value	Comment
Calor específico	20.0 °C	460 J/(kg·K) Show Material materials with Calor específico of 460 J/(kg·K)
Coeficiente de dilatación térmica	100.0 °C	1.35E-5 1/K Show Material materials with Coeficiente de dilatación térmica of 1.35E-5 1/K
	200.0 °C	1.4E-5 1/K Show Material materials with Coeficiente de dilatación térmica of 1.4E-5 1/K
	400.0 °C	1.5E-5 1/K Show Material materials with Coeficiente de dilatación térmica of 1.5E-5 1/K
	600.0 °C	1.55E-5 1/K Show Material materials with Coeficiente de dilatación térmica of 1.55E-5 1/K
	800.0 °C	1.6E-5 1/K Show Material materials with Coeficiente de dilatación térmica of 1.6E-5 1/K

Conductividad térmica	20.0 °C	13 W/(m·K) Show Material materials with Conductividad térmica of 13 W/(m·K)
Temperatura de fusión		1400 °C Show Material materials with Temperatura de fusión of 1400 °C	Typical for Nickel Chromium Alloy
Temperatura máx. de funcionamiento, largo		0 - 1150 °C Show Material materials with Temperatura máx. de funcionamiento, largo of 0 - 1150 °C

Eléctrico

Property	Temperature	Value
Resistividad eléctrica	20.0 °C	1.1E-6 Ω·m Show Material materials with Resistividad eléctrica of 1.1E-6 Ω·m
	100.0 °C	1.14E-6 Ω·m Show Material materials with Resistividad eléctrica of 1.14E-6 Ω·m
	200.0 °C	1.16E-6 Ω·m Show Material materials with Resistividad eléctrica of 1.16E-6 Ω·m
	300.0 °C	1.18E-6 Ω·m Show Material materials with Resistividad eléctrica of 1.18E-6 Ω·m
	400.0 °C	1.2E-6 Ω·m Show Material materials with Resistividad eléctrica of 1.2E-6 Ω·m
	500.0 °C	1.22E-6 Ω·m Show Material materials with Resistividad eléctrica of 1.22E-6 Ω·m
	600.0 °C	1.21E-6 Ω·m Show Material materials with Resistividad eléctrica of 1.21E-6 Ω·m
	700.0 °C	1.21E-6 Ω·m Show Material materials with Resistividad eléctrica of 1.21E-6 Ω·m
	800.0 °C	1.22E-6 Ω·m Show Material materials with Resistividad eléctrica of 1.22E-6 Ω·m
	900.0 °C	1.23E-6 Ω·m Show Material materials with Resistividad eléctrica of 1.23E-6 Ω·m
	1000.0 °C	1.24E-6 Ω·m Show Material materials with Resistividad eléctrica of 1.24E-6 Ω·m
	1100.0 °C	1.26E-6 Ω·m Show Material materials with Resistividad eléctrica of 1.26E-6 Ω·m
	1200.0 °C	1.28E-6 Ω·m Show Material materials with Resistividad eléctrica of 1.28E-6 Ω·m
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Chemical properties

Property	Value
Aluminio	0.3 % Show Material materials with Aluminio of 0.3 %
Azufre	0.015 % Show Material materials with Azufre of 0.015 %
Carbono	0.15 % Show Material materials with Carbono of 0.15 %
Cobre	0.5 % Show Material materials with Cobre of 0.5 %
Cromo	19 - 21 % Show Material materials with Cromo of 19 - 21 %
Fósforo	0.02 % Show Material materials with Fósforo of 0.02 %
Hierro	1 % Show Material materials with Hierro of 1 %
Manganeso	1 % Show Material materials with Manganeso of 1 %
Níquel	75 % Show Material materials with Níquel of 75 %
Silicona	0.5 - 2 % Show Material materials with Silicona of 0.5 - 2 %