Super Invar austenitic solid solution alloy Strip, sheet, bar, wire, forging, tube

Introduction

Super Invar, a magnetic, austenitic, solid solution  alloy containing iron, nickel, and cobalt, is designed to provide minimum  thermal expansion at room temperatures. This alloy also exhibits austenite  stability to service temperature at least -67°F and thermal expansion  properties less than those of Invar 36 alloy (36% nickel-iron) when used in  the -67/203°F (-55/95°C) temperature range.

Character

Super Invar was originally designed to  provide minimum thermal expansion at room temperatures. It has the austenite  stability to service temperatures at least -67°F (-55°C). Super Invar 32-5  has less thermal expansion properties than Invar 36.

Density: 8.15g/cm3

Application

l    Optical instruments

l    Telescopes

l    Laser instruments and equipment

l    Ring laser gyroscopes

l    Laser benches

l    Positioning devices

l    Metrology devices

l    Scientific instruments

l    Structural components and supports for optical and  laser systems

l    Applications that require lower expansivity than Invar

Equal grades

4J32(China)

Nominal chemical  composition(%)

0.02 C, 0.40 Mn, 0.25 Si, 32 Ni, 5.5  Co, Bal. Fe

Standards

A-one Alloy standard

Forms available  at A-one Alloy

Strip, sheet, bar, wire, bar, forging,  tube, capillary

Delivery

Confirm with A-one Alloy