Dadansoddiad Enwol
27.00 Cr, 7.00 Al, 2.00 Mo, Bal. Fe
Tymheredd gweithio parhaus uchaf: 1400 C.
Diamedr gwifren: 0.5 ~ 12mm
Tymheredd toddi: 1520 C
Gwrthiant Trydanol: 1.53 ohm mm2/m
Wedi'i ddefnyddio'n helaeth fel elfennau gwresogi mewn ffwrneisi diwydiannol ac odynau trydanol.
Mae ganddo lai o gryfder poeth nag aloion Tophet ond ymdoddbwynt llawer uwch.
Shanghai TANKII ALLOY DEUNYDD Co., Ltd.
Cyfansoddiad Cemegol a Phrif Eiddo Alloy Gwrthiant Fe-Cr-Al | ||||||||
Priodweddau \ Gradd | 1Cr13Al4 | 0Cr25Al5 | 0Cr21Al6 | 0Cr23Al5 | 0Cr21Al4 | 0Cr21Al6Nb | 0Cr27Al7Mo2 | |
Prif Gyfansoddiad Cemegol (%) | Cr | 12.0-15.0 | 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 | 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 | amserol | amserol | amserol | amserol | amserol | amserol | amserol | |
Fe | Bal. | Bal. | Bal. | Bal. | Bal. | Bal. | Bal. | |
Nb0.5 | Mo1.8-2.2 | |||||||
Tymheredd Gwasanaeth Parhaus Uchaf (oC) | 950 | 1250 | 1250 | 1250 | 1100 | 1350 | 1400 | |
Gwrthedd 20oC (Ω mm2/m) | 1.25 ± 0.08 | 1.42 ± 0.06 | 1.42 ± 0.07 | 1.35 ± 0.07 | 1.23 ± 0.07 | 1.45 ± 0.07 | 1.53 ± 0.07 | |
Dwysedd(g/cm3) | 7.4 | 7.1 | 7.16 | 7.25 | 7.35 | 7.1 | 7.1 | |
Dargludedd Thermol | 52.7 | 46.1 | 63.2 | 60.2 | 46.9 | 46.1 | 45.2 | |
(KJ/m@ h@ oC) | ||||||||
Cyfernod Ehangu Thermol(α × 10-6/oC) | 15.4 | 16 | 14.7 | 15 | 13.5 | 16 | 16 | |
Bras Pwynt Toddi(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 | |
elongation(%) | >16 | >12 | >12 | >12 | >12 | >12 | >10 | |
Amrywiad Adran | 65-75 | 60-75 | 65-75 | 65-75 | 65-75 | 65-75 | 65-75 | |
Cyfradd crebachu (%) | ||||||||
Amlder Troi Dro ar ôl tro (F/R) | >5 | >5 | >5 | >5 | >5 | >5 | >5 | |
Caledwch (HB ) | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | |
Amser Gwasanaeth Parhaus | no | ≥ 80/1300 | ≥ 80/1300 | ≥ 80/1300 | ≥ 80/1250 | ≥ 50/1350 | ≥ 50/1350 | |
Strwythur Micrograffig | Fferit | Fferit | Fferit | Fferit | Fferit | Fferit | Fferit | |
Eiddo Magnetig | Magnetig | Magnetig | Magnetig | Magnetig | Magnetig | Magnetig | Magnetig |