Low-expansion iron-nickel-cobalt alloy, also known as super Invar alloy, has a low coefficient of linear thermal expansion within the range of 20℃ to 100℃.
Application: It is used to manufacture various instrument and meter parts, thermal bimetallic passive layers, and resonant cavities that require dimensional stability.
The density of this alloy is ρ=8.10g/cm³.
The product varieties are: cold-rolled strip, cold-rolled plate, cold-drawn wire, cold-drawn (rolled) tube, hot-rolled (forged) flat, wire rod, hot-rolled (forged) bar, and cold-drawn bar.
Applicable standard: YB/T 5241-2014.