Sanoat pechlari uchun 0,12 mm 80/20 nikromli sim
Nikel xrom (NiCr) qotishmalari odatda maksimal ish harorati 1250 ° C (2280 ° F) gacha bo'lgan ilovalarda qo'llaniladigan yuqori qarshilikli materiallardir.
Ushbu ostenitik qotishmalar FeCrAl qotishmalari bilan solishtirganda haroratlarda yuqori mexanik quvvati va yuqori o'rmalanish kuchi bilan mashhur. Nikel-xrom qotishmalari haroratda uzoq vaqtdan keyin FeCrAl qotishmalariga qaraganda ancha egiluvchan bo'lib qoladi. To'q rangli xrom oksidi (Cr2O3) yuqori haroratlarda hosil bo'ladi, u qo'llanilishiga qarab potentsial ifloslanishni keltirib chiqarishi yoki parchalanishiga moyil. Ushbu oksid FeCrA qotishmalarining alyuminiy oksidi (Al2O3) kabi elektr izolyatsiyasi xususiyatlariga ega emas. Nikel-xrom qotishmalari oltingugurt mavjud bo'lgan muhitlar bundan mustasno, yaxshi korroziyaga qarshilik ko'rsatadi.
| Baho | Ni80Cr20 | Ni70Cr30 | Ni60Cr23 | Ni60Cr15 | Ni35Cr20 | Karma | Evanohm | |
| Nominal tarkibi% | Ni | Bal | Bal | 58,0-63,0 | 55,0-61,0 | 34,0-37,0 | Bal | Bal |
| Cr | 20,0-23,0 | 28,0-31,0 | 21,0-25,0 | 15,0-18,0 | 18,0-21,0 | 19.0-21.5 | 19.0-21.5 | |
| Fe | ≦1,0 | ≦1,0 | Bal | Bal | Bal | 2,0-3,0 | - | |
| Al1,0-1,7 Ti 0,3-0,5 | Al2,7-3,2 Mn0,5-1,5 | Al2,7-3,2 Cu2,0-3,0 Mn0,5-1,5 | ||||||
| Maksimal ish harorati (°C) | 1200 | 1250 | 1150 | 1150 | 1100 | 300 | 400 | |
| Qarshilik (Ω/cmf, 20℃) | 1.09 | 1.18 | 1.21 | 1.11 | 1.04 | 1.33 | 1.33 | |
| Qarshilik (uŌ/m,60°F) | 655 | 704 | 727 | 668 | 626 | 800 | 800 | |
| Zichlik (g/sm³) | 8.4 | 8.1 | 8.4 | 8.2 | 7.9 | 8.1 | 8.1 | |
| Issiqlik o'tkazuvchanligi (KJ/m·h·℃) | 60.3 | 45.2 | 45.2 | 45.2 | 43.8 | 46,0 | 46,0 | |
| Chiziqli kengayish koeffitsienti (×10¯6/℃)20-1000℃) | 18.0 | 17.0 | 17.0 | 17.0 | 19.0 | - | - | |
| Erish nuqtasi (℃) | 1400 | 1380 | 1370 | 1390 | 1390 | 1400 | 1400 | |
| Qattiqlik (Hv) | 180 | 185 | 185 | 180 | 180 | 180 | 180 | |
| Kuchlanish kuchi (N/mm2 ) | 750 | 875 | 800 | 750 | 750 | 780 | 780 | |
| Uzayish (%) | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 | 10-20 | 10-20 | |
| Mikrografik tuzilma | ostenit | ostenit | ostenit | ostenit | ostenit | ostenit | ostenit | |
| Magnit xususiyat | Yo'q | Yo'q | Yo'q | Bir oz | Yo'q | Yo'q | Yo'q | |
| Tez hayot (h/℃) | ≥81/1200 | ≥50/1250 | ≥81/1200 | ≥81/1200 | ≥81/1200 | - | - | |
