1Cr13Al4, 0Cr25Al5, 0Cr23Al5, 0Cr21Al6, 0Cr21Al4, 0Cr21Al6Nb,0Cr27Al7Mo2yn un math o ddeunydd arferol o aloi Fe-Cr-Al.
Mae gan aloi FeCrAl nodwedd o wrthiant uchel, cyfernod ymwrthedd tymheredd isel, tymheredd gweithredu uchel, gwrth-ocsidiad da a gwrth-cyrydiad o dan dymheredd uchel.
Fe'i defnyddir yn helaeth mewn ffwrnais ddiwydiannol, offer cartref, ffwrnais diwydiant, meteleg, peiriannau, awyrennau, modurol, a diwydiannau eraill sy'n cynhyrchu elfennau gwresogi ac elfennau gwrthiant.
| Prif nodwedd gwifren aloi gwresogi trydan FeCrAl | ||||||||
| Perfformiad Enwau Aloi | 1Cr13Al4 | 0Cr25Al5 | 0Cr21Al6 | 0Cr23Al5 | 0Cr21Al4 | 0Cr21Al6Nb | 0Cr27Al7Mo2 | |
| Prif gyfansoddiad cemegol | Cr | 12.0-15.0 | 23.0-26.0 | 19.0-22.0 | 20.5-23.5 | 18.0-21.0 | 21.0-23.0 | 26.5-27.8 |
| Al | 4.0-6.0 | 4.5-6.5 | 5.0-7.0 | 4.2-5.3 | 3.0-4.2 | 5.0-7.0 | 6.0-7.0 | |
| Re | amserol | amserol | amserol | amserol | amserol | amserol | amserol | |
| Fe | Gorffwys | Gorffwys | Gorffwys | Gorffwys | Gorffwys | Gorffwys | Gorffwys | |
| Nb0.5 | Mo1.8-2.2 | |||||||
| Uchafswm tymheredd gwasanaeth parhaus (° C) | 950 | 1250 | 1250 | 1250 | 1100 | 1350 | 1400 | |
| Gwrthiant ar 20º C (μ Ω @ m) | 1.25 | 1.42 | 1.42 | 1.35 | 1.23 | 1.45 | 1.53 | |
| Dwysedd (g/cm3) | 7.4 | 7.1 | 7.16 | 7.25 | 7.35 | 7.1 | 7.1 | |
| Dargludedd thermol (KJ/m@h@ºC) | 52.7 | 46.1 | 63.2 | 60.2 | 46.9 | 46.1 | ||
| Cyfernod ehangu llinellau (α × 10-6/º C) | 15.4 | 16 | 14.7 | 15 | 13.5 | 16 | 16 | |
| Pwynt toddi bras (ºC) | 1450 | 1500 | 1500 | 1500 | 1500 | 1510 | 1520 | |
| Cryfder tynnol (N/mm2) | 580-680 | 630-780 | 630-780 | 630-780 | 600-700 | 650-800 | 680-830 | |
| Ymestyniad wrth rwygo (%) | > 16 | > 12 | > 12 | > 12 | > 12 | > 12 | > 10 | |
| Amrywiad arwynebedd (%) | 65-75 | 60-75 | 65-75 | 65-75 | 65-75 | 65-75 | 65-75 | |
| Amlder plygu ailadroddus (F/R) | > 5 | > 5 | > 5 | > 5 | > 5 | > 5 | > 5 | |
| Caledwch (H. B.) | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | |
| amser gwasanaeth parhaus (Oriau/ºC) | – | ≥ 80/1300 | ≥ 80/1300 | ≥ 80/1300 | ≥ 80/1250 | ≥ 50/1350 | ≥ 50/1350 | |
| Strwythur micrograffig | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | |
| Priodweddau magnetig | Magnetig | Magnetig | Magnetig | Magnetig | Magnetig | Magnetig | Magnetig | |
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