Precision Alloy Iron Nickel wire Invar / Vacodil36/ Feni36 for Sealing Glass

Model NO.
TANKII 436
Condition
Soft
Transport Package
Waterproof Paper, Wooden Case
Specification
RoHs
Trademark
TANKII- 436
Origin
China
HS Code
750620000
Production Capacity
3000 Tons/Year
Reference Price
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Product Description

Invar/ Vacodil36/ Feni36 Wire for Sealing Glass

Classification : low coefficient of thermal expansion alloy

Application: 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 leveling rods used are 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.

Chemical Composition in %, Invar
 

 Ni
35-37%
Fe
.
C
0.05%
Si
0.3%
Mn
0,3-0,6 %
S
o 0.015%

P
0.015%
Mo
0.1%
V
0.1%
Al
0.1%
Cu
0.1%
Cr
0,15 %
 
Basic physical constants and mechanical properties of the alloy:

Density: γ = 8,1 g / cm3;
Electric resistivity: ρ = 0,78 ohm mm2 ? / m;
The temperature of the Curie point: Θs = 230 ° C;
Modulus of elasticity E = 144 kN / mm2;
Linear expansion coefficient a1 (20-100 ºC) ≤1,5 * 10-6 ºC -1
 
Temperature Range/ºC 1/10-6ºC-1 Temperature Range/ºC 1/10-6ºC-1
20~-60 1.8 20~250 3.6
20~-40 1.8 20~300 5.2
20~-20 1.6 20~350 6.5
20~0 1.6 20~400 7.8
20~50 1.1 20~450 8.9
20~100 1.4 20~500 9.7
20~150 1.9 20~550 10.4
20~200 2.5 20~600 11

Precision Alloy Iron Nickel wire Invar/ Vacodil36/ Feni36 for Sealing Glass
Precision Alloy Iron Nickel wire Invar/ Vacodil36/ Feni36 for Sealing Glass

 

 

Alloy