NiChrome

Nickel – Chromium

Ni/Cr (80/20%)

NiChrome is available in many forms including Wire, Plate, Bar, Disc, Foil and pieces. Typical uses for Ni/Cr are Resistance Heating Elements in wire and strip forms, Sputter Targets in disc and plate forms for UV resistant glass coatings.  It is used in furnaces and electrical appliances, laboratory inoculating loops and in fine jewelry.

Physical Data:

Density:                          8.4 gm/cm^-3

Melting Point:                1400^oC

Mechanical Properties:

Elongation at Break:              < 40%

Tensile Strength:                   650 – 1100 MPa

Thermal Properties:

Thermal Conductivity:                          13.4 Wm^-1K^-1 at 23^oC

Coefficient of Thermal Expansion:    14 x 10^-6 K^-1 at 20 – 100^oC

Maximum use Temperature in Air:     1150 – 1250^oC

Electrical Properties:

Temperature Coefficient:               0.00005 K^-1

Electrical Resistivity:                      108 micro Ohm cm

Typical Chemical Analysis:

Ni                            78 – 80%

Cr                            18 – 20%

Al                            < 1%

Fe                           < 1%

Mn                          < 1%

Si                            < 1.5%

C                             < 0.15%

S                             < 0.01%

Safety Data Sheet (pdf)