Konpare ak alyaj NiCr, alyaj Fe-Cr-Al ofri rezistivite siperyè, pi wo tanperati sèvis maksimòm, ak pi ba pri.
Aplikasyon yo:
Rezistans elektrik fè-kwòm-aliminyòm yo lajman itilize pou fabrike eleman chofaj elektrik nan aparèy kay ak fimen endistriyèl. Aplikasyon pi rapid yo enkli fè soude, machin ionizasyon, aparèy chofaj dlo, mwazi plastik, fè soude, eleman tibilè metalik ak eleman katouch.
Klas | 1Cr13Al4 | TK1 | 0Cr25Al5 | 0Cr20Al6RE | 0Cr23Al5 | 0Cr19Al3 | 0Cr21Al6Nb | 0Cr27Al7Mo2 | |
Konpozisyon nominal% | 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 | apwopriye | 0.04-1.0 | apwopriye | apwopriye | apwopriye | apwopriye | apwopriye | apwopriye | |
Fe | Bal. | Bal. | Bal. | Bal. | Bal. | Bal. | Bal. | ||
Nb0.5 | Mo1.8-2.2 | ||||||||
Tanperati maksimòm fonksyònman (°C) | 650 | 1400 | 1250 | 1250 | 1250 | 1100 | 1350 | 1400 | |
Rezistans 20℃ (Ω/mm2/m) | 1.25 | 1.48 | 1.42 | 1.40 | 1.35 | 1.23 | 1.45 | 1.53 | |
Dansite (g/cm³) | 7.4 | 7.1 | 7.1 | 7.16 | 7.25 | 7.35 | 7.1 | 7.1 | |
Konduktivite tèmik nan 20 ℃, W / (M · K) | 0.49 | 0.49 | 0.46 | 0.48 | 3.46 | 0.49 | 0.49 | 0.49 | |
Koefisyan ekspansyon lineyè (×10¯6/℃)20-1000℃) | 15.4 | 16 | 16 | 14 | 15 | 13.5 | 16 | 16 | |
Pwen fizyon apwoksimatif (℃) | 1450 | 1520 | 1500 | 1500 | 1500 | 1500 | 1510 | 1520 | |
Fòs tansyon (N/mm2) | 580-680 | 680-830 | 630-780 | 630-780 | 630-780 | 600-700 | 650-800 | 680-830 | |
Elongasyon (%) | ›16 | ›10 | ›15 | ›15 | ›15 | ›15 | ›12 | ›10 | |
Seksyon Varyasyon Shrink Rate (%) | 65-75 | 65-75 | 60-75 | 65-75 | 65-75 | 65-75 | 65-75 | 65-75 | |
Frekans pliye repete (F/R) | ›5 | ›5 | ›5 | ›5 | ›5 | ›5 | ›5 | ›5 | |
Dite (HB) | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | |
Estrikti Mikrografik | Ferit | Ferit | Ferit | Ferit | Ferit | Ferit | Ferit | Ferit | |
Pwopriyete mayetik | Mayetik | Mayetik | Mayetik | Mayetik | Mayetik | Mayetik | Mayetik | Mayetik | |
Lavi rapid (h/℃) | no | ≥80/1350 | ≥80/1300 | ≥80/1300 | ≥80/1300 | ≥80/1250 | ≥50/1350 | ≥50/1350 |