Cyfansoddiad Cemegol mewn %, Invar
brand | Cyfansoddiad cemegol | ||||||||
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 |
Cysonion ffisegol sylfaenol a phriodweddau mecanyddol yr aloi:
brand | Dargludedd thermol | Cynhwysedd gwres penodol | Dwysedd | Gwrthedd trydan | Pwynt Curie |
4j52 | 16.7 | 502J | 8.25 | 0.43 | 520 |
Cymeriad ehangu nodweddiadol (10 -6 / ºC) | ||||||||
Amrediad tymheredd | 20 ~ 100 | 20 ~ 200 | 20 ~ 300 | 20 ~ 350 | 20 ~ 400 | 20 ~ 450 | 20 ~ 500 | 20 ~ 600 |
Cyfernod ehangu | 10.3 | 10.4 | 10.2 | 10.3 | 10.3 | 10.3 | 10.8 | 11.2 |
Defnyddir aloi 4 j52 yn bennaf ar gyfer selio gwydr plwm meddal, ffiwsiau tiwb bach.