UNS K93600 W.Nr.1.3912 Invar 36 Material Wire With 0.5mm Diameter Nickel 36%

UNS K93600 W.Nr.1.3912 Invar 36 Wire with 0.5mm diameter Nickel 36%

1. Description

4J36 (Invar, also known generically as FeNi36 (64FeNi in the US), is a nickel-iron alloy notable for its uniquely low coefficient of thermal expansion (CTE or α).

4J36 (Invar) is used where high dimensional stability is required, such as precision instruments, clocks, seismic creep gauges, television shadow-mask frames, valves in motors, and antimagnetic watches. In land surveying, when first-order (high-precision) elevation leveling is to be performed, the Level staff (leveling rod) used is made of Invar, instead of wood, fiberglass, or other metals. Invar struts were used in some pistons to limit their thermal expansion inside their cylinders.

4J36 use oxyacetylene welding, electric arc welding, welding and other welding methods. Since the coefficient of expansion and chemical composition of the alloy is related should be avoided due to welding causes a change in the alloy composition, it is preferable to use Argon arc welding welding filler metals preferably contains 0.5% to 1.5% titanium, in order to reduce weld porosity and crack.

2. composition%

3. Average Linear Expansion Coefficient 10-6°C

3. More pircture

The bellow picture is our person test the diameter of the wire.