Super Invar Alloy Strip /Wire/ Sheet/ Rod
Relative Grade:
32H Super-Invar / - Invar32H-B Super-Nilvar SI Superieur
General Description
Invar 36, also known as FeNi36, is iron-nickel alloys have low coefficients of expansion over only a rather narrow range of temperature. It has a low coefficient of expansion from cryogenic temperatures to about 260ºC. In the dry air at home temperature, invar 36 has good resistance to corrosion. But in moist air, it may go corrosion.
Invar 36 is suitable for the applications who require low coefficient of expansion, such as production, storage and transportation of liquid gas, temperature regulation devices working below 200ºC, aperture mask, unit frameworks working below -200ºC and so on.
Chemical Composition
| Grade |
C% |
Si% |
P% |
S% |
Mn% |
Ni% |
Fe% |
| Invar 36 |
Max 0.05 |
Max 0.30 |
Max 0.020 |
Max 0.020 |
0.20-0.60 |
35.0-37.0 |
Bal. |
Specifications
| Grade |
UNS |
Werkstoff Nr. |
Strip/Sheet |
| Invar 36 |
K93600 |
1.3912 |
ASTM B388/B753 |
Physical Properties
| Grade |
Density |
Melting Point |
| Invar 36 |
8.1 g/cm3 |
1430°C |
Coefficient of Expansion
| Alloy |
Linear Coefficient of Thermal Expansion ā,10-6/ºC |
| 20-50ºC |
20-100ºC |
20-200ºC |
20-300ºC |
20-400ºC |
20-500ºC |
| Invar 36 |
0.6 |
0.8 |
2.0 |
5.1 |
8.0 |
10.0 |
Size Range
Invar 36 wire, bar, rod, strip, forging, plate, sheet, tube, fastener and other standard forms are available.
Size Range:
*Sheet---Thickness 0.1mm~40.0mm, width:≤300mm,Condition: cold rolled(hot), bright, bright annealed
*Round Wire---Dia 0.1mm~Dia 5.0mm,Condition: cold drawn, bright, bright annealed
*Flat Wire---Dia 0.5mm~Dia 5.0mm,length:≤1000mm,Condition:flat rolled, bright annealed
*Bar---Dia 5.0mm~Dia 8.0mm,length:≤2000mm,Condition:cold drawn,bright, bright annealed
Dia 8.0mm~Dia 32.0mm,length:≤2500mm,Condition:hot rolled,bright, bright annealed
Dia 32.0mm~Dia 180.0mm,length:≤1300mm,Condition:hot forging,peeled, turned, hot treated
*Capillary---OD 8.0mm~1.0mm,ID 0.1mm~8.0mm,length:≤2500mm,Condition: cold drawn, bright, bright annealed
*Pipe---OD 120mm~8.0mm,ID 8.0mm~129mm,length:≤4000mm,Condition: cold drawn, bright, bright annealed
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