Firafitra simika amin'ny %, Invar
| marika | Firafitra simika | |||||||||
| Ni | Cr | Fe | C | P | Mn | B | Al | Si | S | |
| ≤ | ||||||||||
| 4j6 | 41.5~42.5 | 5.4~6.3 | Bala | 0.05 | 0.02 | 0.25 | - | 0.2 | 0.3 | 0.02 |
| 4j47 | 46.8~47.8 | 0.8~1.4 | Bala | 0.05 | 0.02 | 0.40 | - | - | 0.3 | 0.02 |
| 4j49 | 46.0~48.0 | 5.0~6.0 | Bala | 0.05 | 0.02 | 0.40 | 0.02 | - | 0.3 | 0.02 |
Ireo tsy miovaova ara-batana fototra sy ireo toetra mekanikan'ny firaka:
| marika | Hakitroky g / cm3 | fanoherana | Teboka Curie |
| 4j6 | 8.15 | 0.92 | 270 |
| 4j47 | 8.19 | 0.55 | 400 |
| 4j49 | 8.18 | 0.90 | 340 |
| Toetra mahazatra amin'ny fivelarana (10 -6 / ºC) | ||||||||
| Elanelana mari-pana | 20~100 | 20~200 | 20~300 | 20~400 | 20~500 | 20~400 | 20~550 | 20~600 |
| Koefisienan'ny fanitarana | 6.8 | 7.0 | 7.7 | 9.7 | 11.7 | 3.2 | 11.7 | 12.2 |
| karazany | Karazana vy fepetra arahana | fametrahana mazava tsara firaka | Firaka fanoherana ho an'ny fanafanana elektrika | Firaka mahery vaika | Tariby fanendasana | Mahatanty harafesina firaka | |
| hazo | tsorakazo mafana | Φ8~38mm | Available | Available | Available | ||
| Tehina voasintona mangatsiaka | ≤50mm | Available | Available | Available | |||
| tsorakazo nopotehina | Φ38~350mm | Available | Available | Available | |||
| Tariby | Tariby boribory | Φ0.3~8mm | Available | Available | Available | Available | Available |
| Tariby tsy boribory | fifampiraharahana | Available | Available | Available | |||
| ravin | Mangatsiaka ny fihodinana | 0.15~4×200mm | Available | Available | Available | Available | |
| Mihodinkodina mafana | 4~22×200mm | Available | Available | Available | Available | ||
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