Product Search



Product #: IV-101

Product Description

Nickel Iron Powder, 64FeNi, Invar powder, is a low-expansion alloy powder with 36% Nickel, 64% Iron. It maintains nearly constant dimensions over the range of normal atmospheric temperatures, and has a low coefficient of expansion from cryogenic temperatures to about 500°F. The alloy also retains good strength and toughness at cryogenic temperatures. It has been used for applications where dimensional changes due to temperature variation must be minimized such as in radio and electronic devices, aircraft controls, optical and laser system, etc. Invar 36 alloy has also been used in conjunction with high expansion alloys in applications where a motion is desired when the temperature changes, such as in bimetallic thermostats and in rod and tube assemblies for temperature regulators.

Product Cost

In Stock for Immediate Shipping
Quantity (LB) Price
1-2 LB $67.04
3-10 LB $50.28
11-25 LB $46.93
Note: Prices are subject to change without notice due to market conditions

Product Notes

1/2 lb minimum order

Can ship by UPS or FedEx

Standard packaging: 50 lb, 100 lb pails


Formula NiFe
Purity 99.9%
Particle Size -200 Mesh
Schedule B 7504.00.0010
CAS CAS-NI-7440-02-0;FE-7439-89-6
Melting Point 1690°C / 3074°F
Boiling Point -
Density 8.1 g/cm3
Coef. of Expansion @ 20°C 1.2 ppm/C
Crystal Structure Cubic, Face Centered
Electric Resistivity 82.92um-cm
Composition Ni - 36, Fe - 64




Additive Manufacturing (Laser / Electron Beam), Powder Metallurgy

Need help? Have Questions? Contact us today!

Learn More