ʻO nā mea hoʻohuihui Iron Chrome Aluminum (FeCrAl) he mau mea kūpaʻa kiʻekiʻe i hoʻohana pinepine ʻia i nā noi me nā mahana hana kiʻekiʻe loa a hiki i 1,400°C (2,550°F).
Ua ʻike ʻia kēia mau mea hoʻohui Ferritic he hiki ke hoʻouka ʻili kiʻekiʻe, ke kū'ē kiʻekiʻe a me ka haʻahaʻa haʻahaʻa ma mua oNikala Chrome(NiCr) nā koho ʻē aʻe i hiki ke unuhi i ka liʻiliʻi o nā mea i ka noi a me ka mālama ʻana i ke kaumaha. ʻO nā mahana hana kiʻekiʻe loa hiki ke alakaʻi i ke ola lōʻihi o nā element. Hoʻokumu nā mea hoʻohuihui Iron Chrome Aluminum i kahi Aluminum Oxide hina māmā (Al2O3) ma nā mahana ma luna o 1,000°C (1,832°F) e hoʻonui ai i ke kūpaʻa ʻana i ka corrosion a hana pū kekahi ma ke ʻano he insulator uila. Manaʻo ʻia ka hoʻokumu ʻana o ka oxide he mea hoʻokaʻawale ponoʻī a pale aku i ka pōʻai pōkole i ka hanana o ka hoʻopili ʻana o ka metala i ka metala. ʻOi aku ka haʻahaʻa o ka ikaika mechanical o nā mea hoʻohuihui Iron Chrome Aluminum i ka hoʻohālikelike ʻia meNikala Chromenā mea hana a me ka ikaika kolo haʻahaʻa.
| Papa | 1Cr13Al4 | TK1 | 0Cr25Al5 | 0Cr20Al6RE | 0Cr23Al5 | 0Cr19Al3 | 0Cr21Al6Nb | 0Cr27Al7Mo2 | |
| Ka hoʻohui inoa% | Cr | 12.0-15.0 | 22.0-26.0 | 23.0-26.0 | 19.0-22.0 | 22.5-24.5 | 18.0-21.0 | 21.0-23.0 | 26.5-27.8 |
| Al | 4.0-6.0 | 5.0-7.0 | 4.5-6.5 | 5.0-7.0 | 4.2-5.0 | 3.0-4.2 | 5.0-7.0 | 6.0-7.0 | |
| Re | kūpono | 0.04-1.0 | kūpono | kūpono | kūpono | kūpono | kūpono | kūpono | |
| Fe | Bal. | Bal. | Bal. | Bal. | Bal. | Bal. | Bal. | ||
| Nb0.5 | Mo1.8-2.2 | ||||||||
| Ka mahana hana kiʻekiʻe loa (°C) | 650 | 1400 | 1250 | 1250 | 1250 | 1100 | 1350 | 1400 | |
| Kū'ē 20 ℃ (Ω/mm2/m) | 1.25 | 1.48 | 1.42 | 1.40 | 1.35 | 1.23 | 1.45 | 1.53 | |
| Ka nui (g/cm³) | 7.4 | 7.1 | 7.1 | 7.16 | 7.25 | 7.35 | 7.1 | 7.1 | |
| Ka hoʻokele wela ma 20 ℃,W/(M·K) | 0.49 | 0.49 | 0.46 | 0.48 | 3.46 | 0.49 | 0.49 | 0.49 | |
| Ka helu hoʻonui laina (× 10¯6/℃)20-1000℃) | 15.4 | 16 | 16 | 14 | 15 | 13.5 | 16 | 16 | |
| Wahi Hoʻoheheʻe Kokoke (℃) | 1450 | 1520 | 1500 | 1500 | 1500 | 1500 | 1510 | 1520 | |
| Ikaika Tensile (N/mm2) | 580-680 | 680-830 | 630-780 | 630-780 | 630-780 | 600-700 | 650-800 | 680-830 | |
| Hoʻolōʻihi (%) | ›16 | ›10 | ›12 | ›12 | ›12 | ›12 | ›12 | ›10 | |
| Ka helu hoʻemi o ka loli ʻāpana (%) | 65-75 | 65-75 | 60-75 | 65-75 | 65-75 | 65-75 | 65-75 | 65-75 | |
| Hoʻololi pinepine ʻia ke alapine (F/R) | ›5 | ›5 | ›5 | ›5 | ›5 | ›5 | ›5 | ›5 | |
| Paʻakikī (HB) | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | |
| ʻAno Micrographic | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | |
| Waiwai Makeneka | Mākēneki | Mākēneki | Mākēneki | Mākēneki | Mākēneki | Mākēneki | Mākēneki | Mākēneki | |
| Ola wikiwiki (h/℃) | no | ≥80/1350 | ≥80/1300 | ≥80/1300 | ≥80/1300 | ≥80/1250 | ≥50/1350 | ≥50/1350 | |
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