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