Super Invar (4J32)
Product Detail
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Super Invar is a special ultra-low coefficient of heat expansion of low-iron-nickel alloy. One of carbon and manganese element of control is very important. Cold deformation can reduce the coefficient of thermal expansion, in particular within the framework of the heat treatment temperature coefficient of thermal expansion will enable stabilization. Has the following characteristics:
1.Has very low coefficient of heat expansion between the temperature of
2.Good toughness and plastic
Super Invar Trade Name: 4J32; Super Invar
Super Invar Chemical composition:
|
Alloy |
% |
Ni |
Cu |
Fe |
Co |
C |
Mn |
Si |
P |
S |
|
4J32 |
Min. |
31.5 |
0.4 |
Balance |
3.2 |
0.2 |
||||
|
Max. |
33.0 |
0.8 |
4.2 |
0.05 |
0.6 |
0.2 |
0.02 |
0.02 |
Super Invar Physical properties:
|
Density |
8.13 g/cm3 |
|
Melting point |
1405℃-1430 ℃ |
Super Invar Mechanical properties in the room temperature:
|
Alloy State |
Tensile strength Rm N/mm2 |
Yield strength RP0.2 N/mm2 |
Elongation A5 % |
Brinell hardness HB |
|
4J32 |
480 |
240 |
42 |
≤200 |
Super Invar Average coefficient of linear expansion（10-6℃）
|
20~100℃ |
20~300℃ |
20~400℃ |
20~450℃ |
20~500℃ |
20~530℃ |
20~600℃ |
|
0.8 |
≤4.3 |
—— |
7.2 |
9.3 |
—— |
—— |
Super Invar Specificaiton:
| Rod | Wire | Froging | Pipe | Sheet | Strip |
|
GB/T14985,ASTM B 388, ASTM B 753, DIN 171,ASTM B 388,ASTM B 753, DIN 171, MIL-I-23011 CL 7,SEW 38, MIL-S-16598 |
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Super Invar Applications Fileds:
4J32 suit for need to apply ultra-low coefficient of heat expansion environment.Typical applications are as follows:
1.Glass sealing
2.Liquefied gas production, storage and transport
3.The measurement and control instruments work temperature lower than
4.Metals and other materials use the screw connector bush
5.Bimetal and bimetallic temperature controller
6.Film framework
7.Shadow mask
8.CRP components of the aviation industry temper Die
9.lower than
9.The auxiliary tube of the electromagnetic lens in the laser control device
