NiCr 70/30 (2.4658) hutumika kwa vipengele vya kupokanzwa umeme vinavyostahimili kutu katika tanuu za viwandani zenye angahewa za kupunguza. Nickel Chrome 70/30 ni sugu kwa uoksidishaji hewani. Haipendekezwi kwa ajili ya matumizi katika vipengele vya kupokanzwa vilivyofunikwa na MgO, au programu zinazotumia nitrojeni au angahewa za kuziba.
Daraja | Ni80Cr20 | Ni70Cr30 | Ni60Cr23 | Ni60Cr15 | Ni35Cr20 | Karma | Evanohm | |
Utungaji mdogo% | 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 | ||||||
Kiwango cha juu cha halijoto cha kufanya kazi (°C) | 1200 | 1250 | 1150 | 1150 | 1100 | 300 | 400 | |
Ustahimilivu(Ω/cmf,20℃) | 1.09 | 1.18 | 1.21 | 1.11 | 1.04 | 1.33 | 1.33 | |
Ustahimilivu (uΩ/m,60°F) | 655 | 704 | 727 | 668 | 626 | 800 | 800 | |
Uzito (g/cm³) | 8.4 | 8.1 | 8.4 | 8.2 | 7.9 | 8.1 | 8.1 | |
Uendeshaji wa Joto(KJ/m·h·℃) | 60.3 | 45.2 | 45.2 | 45.2 | 43.8 | 46.0 | 46.0 | |
Mgawo wa Upanuzi wa Mstari(×10¯6/℃)20-1000℃) | 18.0 | 17.0 | 17.0 | 17.0 | 19.0 | - | - | |
Kiwango Myeyuko(℃) | 1400 | 1380 | 1370 | 1390 | 1390 | 1400 | 1400 | |
Ugumu (Hv) | 180 | 185 | 185 | 180 | 180 | 180 | 180 | |
Nguvu ya Mkazo (N/mm2 ) | 750 | 875 | 800 | 750 | 750 | 780 | 780 | |
Kurefusha(%) | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 | 10-20 | 10-20 | |
Muundo wa Micrographic | austenite | austenite | austenite | austenite | austenite | austenite | austenite | |
MagneticProperty | Sio | Sio | Sio | Kidogo | Sio | Sio | Sio | |
Maisha ya Haraka(h/℃) | ≥81/1200 | ≥50/1250 | ≥81/1200 | ≥81/1200 | ≥81/1200 | - | - |
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