NiCr qotishmasi bilan solishtirganda, Fe-Cr-Al qotishmasi yuqori qarshilik, yuqori maksimal xizmat harorati va arzonroq narxni taklif qiladi.
Ilovalar:
Temir-xrom-alyuminiy elektr rezistorlari maishiy texnika va sanoat gazlari, yog'li qo'shimchalar, yog 'ro'zg'orlari, ionlash mashinalari, isitish moslamalari, plastmassa qoliplari, lehim dazmollari, metall qoplamali quvur elementlari va kartridj elementlarida elektr isitish elementlarini ishlab chiqarish uchun keng qo'llaniladi.
Baho | 1Cr13Al4 | TK1 | 0Cr25Al5 | 0Cr20Al6RE | 0Cr23Al5 | 0Cr19Al3 | 0Cr21Al6Nb | 0Cr27Al7Mo2 | |
Nominal tarkibi% | 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 | qulay | 0,04-1,0 | qulay | qulay | qulay | qulay | qulay | qulay | |
Fe | Bal. | Bal. | Bal. | Bal. | Bal. | Bal. | Bal. | ||
Nb0.5 | Oy 1,8-2,2 | ||||||||
Maksimal ish harorati (°C) | 650 | 1400 | 1250 | 1250 | 1250 | 1100 | 1350 | 1400 | |
Qarshilik 20℃(Ō/mm2/m) | 1.25 | 1.48 | 1.42 | 1.40 | 1.35 | 1.23 | 1.45 | 1.53 | |
Zichlik (g/sm³) | 7.4 | 7.1 | 7.1 | 7.16 | 7.25 | 7.35 | 7.1 | 7.1 | |
20 ℃ da issiqlik o'tkazuvchanligi, Vt/(M·K) | 0,49 | 0,49 | 0,46 | 0,48 | 3.46 | 0,49 | 0,49 | 0,49 | |
Chiziqli kengayish koeffitsienti (×10¯6/℃)20-1000℃) | 15.4 | 16 | 16 | 14 | 15 | 13.5 | 16 | 16 | |
Taxminiy erish nuqtasi (℃) | 1450 | 1520 | 1500 | 1500 | 1500 | 1500 | 1510 | 1520 | |
Kuchlanish kuchi (N/mm2) | 580-680 | 680-830 | 630-780 | 630-780 | 630-780 | 600-700 | 650-800 | 680-830 | |
Uzayish (%) | ›16 | ›10 | ›15 | ›15 | ›15 | ›15 | ›12 | ›10 | |
Bo'lim o'zgarishining qisqarish darajasi (%) | 65-75 | 65-75 | 60-75 | 65-75 | 65-75 | 65-75 | 65-75 | 65-75 | |
Takroriy egilish chastotasi (F/R) | ›5 | ›5 | ›5 | ›5 | ›5 | ›5 | ›5 | ›5 | |
Qattiqligi (HB) | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | |
Mikrografik tuzilma | Ferrit | Ferrit | Ferrit | Ferrit | Ferrit | Ferrit | Ferrit | Ferrit | |
Magnit xususiyat | Magnit | Magnit | Magnit | Magnit | Magnit | Magnit | Magnit | Magnit | |
Tez hayot (h/℃) | no | ≥80/1350 | ≥80/1300 | ≥80/1300 | ≥80/1300 | ≥80/1250 | ≥50/1350 | ≥50/1350 |