Cr20Ni80 heating wire is a high-resistance alloy wire commonly used in industrial heating equipment. It is composed of elements such as chromium (Cr) and nickel (Ni) and has excellent resistance characteristics and high temperature stability.
In industrial heating equipment, Cr20Ni80 heating wire is widely used in various electric furnaces, hot blast furnaces, ovens and other heating elements. It can provide uniform and stable high-temperature heating effect to meet the heating needs in industrial production processes. Whether used to heat raw materials, heat air or heat the equipment itself, Cr20Ni80 heating wire can reliably provide the required high-temperature heating.

Basic performance:

• Composition: Cr20Ni80 heating wire is composed of approximately 20% chromium (Cr) and 80% nickel (Ni) by weight. This alloy composition provides good electrical resistance and high-temperature stability.
• Resistivity: The resistivity of Cr20Ni80 heating wire is typically around 1.09-1.13 μΩ·m. This property determines the wire's electrical resistance and its ability to generate heat when an electric current passes through it.
• Maximum Operating Temperature: Cr20Ni80 heating wire has a high melting point and can withstand temperatures up to approximately 1100-1200 degrees Celsius (2012-2192 degrees Fahrenheit). It is suitable for applications requiring high-temperature heating.
• Density: The density of Cr20Ni80 heating wire is approximately 8.4 g/cm³.
• Coefficient of Linear Expansion: The wire has a coefficient of linear expansion of about 13-15×10^-6/°C, which means it expands or contracts slightly when subjected to temperature changes.
• Mechanical Strength: Cr20Ni80 heating wire has good mechanical strength, including tensile strength and yield strength. The tensile strength is typically in the range of 700-900 megapascals (MPa), and the yield strength is around 300-600 MPa. These properties allow the wire to withstand mechanical stress during operation.
• Elongation: The elongation of Cr20Ni80 heating wire is typically around 20-30%, indicating its ability to stretch slightly without breaking.

Technical Parameters:

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Performance material		Cr10Ni90	Cr20Ni80	Cr30Ni70	Cr15Ni60	Cr20Ni35	Cr20Ni30
Composición	Ni	90	Rest	Rest	55.0～61.0	34.0～37.0	30.0～34.0
	Cr	10	20.0～23.0	28.0～31.0	15.0～18.0	18.0～21.0	18.0～21.0
	Fe	－	≤1.0	≤1.0	Rest	Rest	Rest
Temperatura máxima℃		1300	1200	1250	1150	1100	1100
Punto de fusion ℃		1400	1400	1380	1390	1390	1390
Densidad g/cm3		8.7	8.4	8.1	8.2	7.9	7.9
Resistividad μΩ·m,20℃		0.76±0.05	1.09±0.05	1.18±0.05	1.12±0.05	1.00±0.05	1.04±0.05
Alargamiento a la ruptura		≥20	≥20	≥20	≥20	≥20	≥20
Calor especifico J/g.℃		－	0.44	0.461	0.494	0.5	0.5
Conductividad térmica KJ/m.h℃		－	60.3	45.2	45.2	43.8	43.8
Coeficiente de expansión de líneas a×10-6/(20～1000℃)		－	18	17	17	19	19
Estructura micrográfica		－	Austenite	Austenite	Austenite	Austenite	Austenite
Propiedades magnéticas		－	Nonmagnetic	Nonmagnetic	Nonmagnetic	Weak magnetic	Weak magnetic

Form	Specification
Wire	Diameter=0.025mm~8mm
Flat wire	Width=0.40~6.0mm	Thick=0.03~0.50mm
Strip	width=8~250mm	Thick=0.05~3.0mm
Bar	Diameter=8~100mm	Long=50~1000

Service:

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We provide comprehensive nickel-chromium alloy technical support and services to ensure the normal operation of our customers' products. Our experienced technical team will provide customers with various services such as installation, maintenance, troubleshooting, and answer any questions they may have about the product. We also provide customized solutions, designing and manufacturing nickel-chromium alloy products according to customer needs.

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email:victory@dlx-alloy.com

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Main feature:

1. High resistance characteristics: Cr20Ni80 heating wire has a high resistivity and can provide a large resistance value, making it suitable for scenarios requiring high-power heating.
2. High-temperature stability: This heating wire can maintain excellent stability in high-temperature environments, with a maximum operating temperature of up to 1200°C, adapting to various high-temperature heating needs.
3. Fast heating response: Due to its high resistance characteristics, Cr20Ni80 heating wire can heat up quickly, providing fast and efficient heating effect.
4. Oxidation resistance: Under high temperature conditions, it can form a dense oxide protective film, effectively preventing further oxidation reactions and extending service life.