Nickel-chromium Alloys Wire Cr20Ni80

Overview

Cr20Ni80 is a high-performance nickel-chromium alloy composed of 80% nickel (Ni) and 20% chromium (Cr). It offers excellent high-temperature oxidation resistance, corrosion resistance, and stable electrical resistivity, widely used in high-temperature heating elements, industrial furnaces, and household appliances.

Limiting Chemical Composition, %

Chromium(Cr)..................................................................................................................................20.0

Nickel(Ni).........................................................................................................................................80.0

Balance Iron (Fe) & Trace Elements

Main Properties

Material Characteristics

Key Advantages

● High resistivity:

Stable resistivity (approx. 1.09 Ω·mm²/m), ideal for electric heating applications.

● Anti-oxidation and corrosion resistance:

Outstanding oxidation and corrosion resistance even at high temperatures (≤1200°C).

● High-temperature stability:

Retains mechanical strength and dimensional stability under prolonged high-temperature operation.

● Long life:

Long service life due to high-temperature resistance, outperforming conventional alloys.

● Easy machinability:

Easily processed into wires, coils, and other forms.

Typical Applications

● Electric heating equipment:

Furnaces, ovens, heating tubes, industrial heating elements.

● Industrial fields:

Glass manufacturing, ceramic sintering, chemical reactors..

● Laboratory equipment:

High-temperature instruments and precision temperature control systems.

Material Characteristics