Cronix 70 digunakake kanggo unsur pemanas listrik tahan karat ing tungku industri kanthi atmosfer sing nyuda. Cronix 70 tahan banget kanggo oksidasi ing udara. Ora dianjurake kanggo digunakake ing unsur panas MgO sheathed, utawa aplikasi nggunakake nitrogen utawa carburizing atmosfer.
sasmita | Ni80Cr20 | Ni70Cr30 | Ni60Cr23 | Ni60Cr15 | Ni35Cr20 | Karma | Evanohm | |
Komposisi nominal% | 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 | ||||||
Suhu operasi maksimal (°C) | 1200 | 1250 | 1150 | 1150 | 1100 | 300 | 400 | |
Resisivity (Ω/cmf, 20 ℃) | 1.09 | 1.18 | 1.21 | 1.11 | 1.04 | 1.33 | 1.33 | |
Resisivity (uΩ/m,60°F) | 655 | 704 | 727 | 668 | 626 | 800 | 800 | |
Kapadhetan (g/cm³) | 8.4 | 8.1 | 8.4 | 8.2 | 7.9 | 8.1 | 8.1 | |
Konduktivitas termal (KJ/m·h·℃) | 60.3 | 45.2 | 45.2 | 45.2 | 43.8 | 46.0 | 46.0 | |
Koefisien Ekspansi Linear (× 10¯6/ ℃)20-1000 ℃) | 18.0 | 17.0 | 17.0 | 17.0 | 19.0 | - | - | |
Titik lebur (℃) | 1400 | 1380 | 1370 | 1390 | 1390 | 1400 | 1400 | |
Kekerasan (Hv) | 180 | 185 | 185 | 180 | 180 | 180 | 180 | |
Kekuwatan Tarik (N/mm2) | 750 | 875 | 800 | 750 | 750 | 780 | 780 | |
Elongasi (%) | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 | 10-20 | 10-20 | |
Struktur Mikrografi | austenit | austenit | austenit | austenit | austenit | austenit | austenit | |
MagneticProperty | Non | Non | Non | Rada-rada | Non | Non | Non | |
Urip Cepet (h/℃) | ≥81/1200 | ≥50/1250 | ≥81/1200 | ≥81/1200 | ≥81/1200 | - | - |
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