This controlled expansion alloy is used in applications such as measurement and electronic devices where dimensional changes due to temperature must be minimal.
Also used in sensor & electronic packages in telecommunications, aeronautical & aerospace engineering.
Invar 36® (UNS K93600) is a unique nickel-iron controlled expansion alloy.
Invar 36 is a 36% nickel-iron alloy with a rate of thermal expansion approximately one-tenth that of carbon steel at temperatures up to 400°F (204°C).
| Application | This alloy is used for applications where dimensional changes due to temperature variation must be minimized or in conjunction with high expansion alloys in applications where a motion is desired when the temperature changes. |
| Billet, Rod & Bar | ASTM F1684 |
| Others | UNS K93603, AMS12-23011, MIL-1-23011 |