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List of Alloys & profiles

Alloy Wire International

Datasheet: 80/20 Ni Cr Resistance Wire

80/20 Ni Cr Resistance Wire

80/20 Ni Cr Resistance Wire is an alloy used at operating temperatures up to 1200°C (2200°F). Its chemical composition gives good oxidation resistance, especially under conditions of frequent switching or wide temperature fluctuations. This makes it ideal for a wide variety of applications including heating elements in domestic and industrial appliances, wire-wound resistors, through to the aerospace industry.

80/20 Ni Cr Resistance Wire is also known as Nichrome / Nicrhrome V, Brightray C, Cronix 80, Nicrothal 80, Chromalloy, Chromel, and Gilphy 80.

Available in all profile options

80/20 Ni Cr Resistance Wire - Alloy Wire International 1

Typical Applications

Heating elements in both domestic and industrial appliances and in control resistors.


Designations

W.Nr. 2.4869
UNS N06003
AWS 080

Chemical Composition

The chemical composition of 80/20 Ni Cr Resistance Wire is indicated in the table below:

ElementMin %Max %
C0.15
Si0.502.00
Mn1.00
P0.02
S0.015
Cr19.0021.00
Ni75.00
Al0.30
Cu0.50
Fe1.00

Alloy Details

80/20 Ni Cr Resistance Wire density, electrical resistivity, operating temperature, melting point, and coefficient of expansion is indicated in the table below:

DensityElectrical Resistivity at 20 °CMaximum operating temperature for use as a Heating ElementMaximum operating temperature for use
in Hot Cutting, Fabrication – Line Bending
Melting PointCoefficient of Expansion
8.31g/cm³108 microhm • cm1200 °C300 °C1400 °C12.5 µm/m °C
(20 – 100°C)
0.300 lb/in³650 ohm. Circ. mil/ft2200 °F572 °F2550 °F7.0 x 10-6 in/in °F (70 – 212°F)

Temperature-Resistance Factor (F)

20 °C
(68 °F)
100 °C
(212 °F)
200 °C
(392 °F)
300 °C
(572 °F)
400 °C
(752 °F)
500 °C
(932 °F)
600 °C
(1112 °F)
1.001.0061.0151.0281.0451.0651.068
700 °C
(1292 °F)
800 °C
(1472 °F)
900 °C
(1652 °F)
1000°C
(1832 °F)
1100 °C
(2012 °F)
1200 °C
(2192 °F)
1.0571.0511.0521.0621.0711.080