GB Standard Invar 36 Resistance Wire / FeNiCr Heating Alloy Wire Bright Surface
Water Treatment 36h GOST 14080-78 Invar 36 Wire
ow coefficients of expansion over only a rather narrow range of temperature. It has a low coefficient of expansion from cryogenic temperatures to about 260℃. 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 200℃, aperture mask, unit frameworks working below -200℃ 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/℃ |
|||||
| 20-50℃ | 20-100℃ | 20-200℃ | 20-300℃ | 20-400℃ | 20-500℃ | |
| 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.
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