Famoronana simika amin'ny%, Invar
| marika | Famoronana simika | ||||||||
| 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 |
Famaritana ara-batana fototra sy toetra mekanika amin'ny firaka:
| marika | Conductivity mafana | Hafanana manokana | hakitroky | Electric resistivity | Curie point |
| 4j54 | 18.8 | 502J | 8.28 | 0.42 | 530 |
| Toetra fanitarana mahazatra (10 -6 / ºC ) | ||||||||
| Temperature range | 20~100 | 20~200 | 20~300 | 20~350 | 20~400 | 20~450 | 20~500 | 20~600 |
| Coefficient fanitarana | 10.7 | 12.7 | 10.7 | 10.7 | 10.8 | 10.3 | 10.8 | 11.2 |
4 j54 firaka dia ampiasaina indrindra ho an'ny sy mika, fitaratra famehezana malefaka
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