Maaddooyinka bimetallic-ga kulaylka waa walxo isku dhafan oo si adag isugu dhafan oo ay ku jiraan laba ama in ka badan lakab oo bir ah oo leh isku-xidhnaan ballaaran oo toosan. Lakabka bir ah ee leh isku-xidhnaan ballaaran oo weyn waxaa loo yaqaan lakabka firfircoon, lakabka bir ah ee leh isku-xidhnaan ballaarin yarna waxaa loo yaqaan lakabka aan firfircoonayn. Lakab dhexdhexaad ah oo loogu talagalay nidaaminta iska caabbinta ayaa lagu dari karaa lakabka firfircoon iyo kan aan firfircoonayn. Marka heerkulka deegaanku isbeddelo, sababtoo ah isku-xidhnaan ballaarin kala duwan oo lakabka firfircoon iyo kan aan firfircoonayn, foorarsiga ama wareegga ayaa dhici doona.
| Magaca Badeecada | Xarig Jumlo ah oo loogu talagalay Xakamaynta Heerkulka 5J1580 |
| Noocyada | 5J1580 |
| Lakab firfircoon | 72mn-10ni-18cu |
| Lakab dadban | 36ni-fe |
| sifooyinka | Waxay leedahay xasaasiyad kuleyl oo heer sare ah |
| Iska caabinta ρ at 20℃ | 100μΩ·cm |
| Modulus-ka E ee laastikada ah | 115000 – 145000 MPa |
| Heerkulka toosan. | -120 ilaa 150℃ |
| Heerkulka hawlgalka ee la oggol yahay. | -70 ilaa 200℃ |
| Xoogga jiidista σb | 750 – 850 MPa |
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