Iron nickel alloy is obtained at a given temperature range by adjusting the content of nickel internal energy and the expansion coefficient of different soft glass and ceramic matching a series of expansion alloy, its expansion coefficient and the Curie temperature increases with the increase of nickel content.The assembly is widely used in electric vacuum industry the sealing structure of the material
Chemical compositionem in%, invar
notus | Chemical compositionem | ||||||||
Ni | Fe | C | P | Si | Co | Mn | Al | S | |
≤ | |||||||||
4J42 | 41.5 ~ 42.5 | Bal | 0,05 | 0,02 | 0,3 | - | 0,80 | 0,10 | 0,02 |
4J45 | 44.5 ~ 45.5 | Bal | 0,05 | 0,02 | 0,3 | - | 0,80 | 0,10 | 0,02 |
4j50 | 49.5 ~ 50.5 | Bal | 0,05 | 0,02 | 0,3 | 1.0 | 0,80 | 0,10 | 0,02 |
4J52 | 51.5 ~ 52.5 | Bal | 0,05 | 0,02 | 0,3 | - | 0,60 | - | 0,02 |
4j54 | 53.5 ~ 54.5 | Bal | 0,05 | 0,02 | 0,3 | - | 0,60 | - | 0,02 |
Basic physica constantes et mechanica proprietatibus de stilo:
notus | Scelerisque conductivity | Imprimis calor capacity | Densitas | Electrica resistentibus | CURRIUM |
4J52 | 16,7 | 502 | 8,25 | 0.43 | DXX |
Typical expansion mores (X -6 / ºC) | ||||||||
Temperature range | XX ~ C | XX ~ CC | XX ~ CCC | XX ~ CCCL | XX ~ CD | XX ~ CDL | XX ~ D | XX ~ DC |
Expansion coefficientem | 10,3 | 10,4 | 10,2 | 10,3 | 10,3 | 10,3 | 10,8 | 11,2 |
IV J52 Alloy est maxime usus est et mollis ducunt speculum signantes, parva tubus fuses.