DIN 17742 Grade NiCr7030 solution annealed (+AT)

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Description

The material NiCr7030 with the material number 2.4658, which is applied in the form of strips 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, is an austenitic nickel-chromium electrical reistance alloy. This alloy distinguishes itself by good scale-resistance as well as by durability under alternating stress in oxidizing/reducing atmosphere for operating temperatures of up to 1250 °C. Application for industrial electric furnaces, enamelling furnaces and night-current storage space-heaters. Processing properties: Formability: good Weldability: satisfactory

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	8.1 - 8.2 g/cm³ Show Material materials with Densidad of 8.1 - 8.2 g/cm³

Mecánica

Property	Temperature	Value
Dureza Brinell	20.0 °C	200 [-] Show Material materials with Dureza Brinell of 200 [-]
Elongación	20.0 °C	25 % Show Material materials with Elongación of 25 %
Límite elástico Rp 0,2	20.0 °C	300 MPa Show Material materials with Límite elástico Rp 0,2 of 300 MPa
Módulo elástico	20.0 °C	200 GPa Show Material materials with Módulo elástico of 200 GPa
Resistencia a la tracción	20.0 °C	700 MPa Show Material materials with Resistencia a la tracción of 700 MPa

Aplicaciones térmicas

Property	Temperature	Value	Comment
Calor específico	20.0 °C	420 - 460 J/(kg·K) Show Material materials with Calor específico of 420 - 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 - 13.8 W/(m·K) Show Material materials with Conductividad térmica of 13 - 13.8 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 - 1250 °C Show Material materials with Temperatura máx. de funcionamiento, largo of 0 - 1250 °C

Eléctrico

Property	Temperature	Value
Resistividad eléctrica	20.0 °C	1.1E-6 - 1.19E-6 Ω·m Show Material materials with Resistividad eléctrica of 1.1E-6 - 1.19E-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
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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	0.1 % Show Material materials with Carbono of 0.1 %
Cobre	0.5 % Show Material materials with Cobre of 0.5 %
Cromo	29 - 32 % Show Material materials with Cromo of 29 - 32 %
Fósforo	0.02 % Show Material materials with Fósforo of 0.02 %
Hierro	5 % Show Material materials with Hierro of 5 %
Manganeso	1 % Show Material materials with Manganeso of 1 %
Níquel	60 % Show Material materials with Níquel of 60 %
Silicona	0.5 - 2 % Show Material materials with Silicona of 0.5 - 2 %