N6 | Chromel C, Ni 60, N6, HAI-NiCr 60, Tophet C, Resistohm 60, Cronifer II, |
Electroloy, Nichrome, Alloy C, Ni 6, MWS-675, Stablohm 675 | |
N7 | Ni 70, Chromel 70/30, N7, Hytemco, HAI-NiCr 70, Balco, Tophet 30, |
Weerstand 70, Cronix 70, Stablohm 710 | |
N8 | Chromel A, Ni 80, N8, Nichroom V, HAI-NiCr 80, Tofet A, Weerstand |
80, Cronix 80, Protoloy, Ni 8, Alloy A, MWS-650, Stablohm 650 |
Beskrywing
Legering | Standaard Strand Konstruksie, mm | Weerstand, Ω/m | Stranddiameter Nominaal, mm | Meter per Kilo |
NiCr 80/20 | 18×0.544+1×0.574 | 0.252-0.278 | 2.67 | 26 |
NiCr 80/20 | 19×0.61 | 0.205-0.250 | 3.05 | |
NiCr 80/20 | 18×0.523+1×0.574 | 0.271-0.299 | 2.67 | 30 |
NiCr 80/20 | 19×0.574 | 0.227-0.251 | 2.87 | 25 |
NiCr 80/20 | 36×0.385+1×0.45 | 0.265-0.293 | 2.76 | 26 |
NiCr 60/15 | 19×0.508 | 0.286-0.318 | 2.54 | |
NiCr 60/15 | 18×0.523+1×0.574 | 0.276-0.305 | 2.76 | 30 |
Ni | 19×0.574 | 0.019-0.021 | 2.87 | 21 |
Besonderhede
Eienskappe/Graad | Cr20Ni80 | Cr30Ni70 | Cr15Ni60 | Cr20Ni35 | Cr20Ni30 | |
Hoofchemiese samestelling | Ni | Rus | Rus | 55.0-61.0 | 34.0-37.0 | 30.0-34.0 |
Cr | 20.0-23.0 | 28.0-31.0 | 15.0-18.0 | 18.0-21.0 | 18.0-21.0 | |
Fe | ≤ 1.0 | ≤ 1.0 | Rus | Rus | Rus | |
Maks. deurlopende dienstemperatuur van element | 1200 | 1250 | 1150 | 1100 | 1100 | |
Weerstand teen 20°C (μ Ω · m) | 1.09 | 1.18 | 1.12 | 1.04 | 1.04 | |
Digtheid (g/cm3) | 8.4 | 8.1 | 8.2 | 7.9 | 7.9 | |
Termiese geleidingsvermoë (KJ/m· h· oC) | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 | |
Koëffisiënt van lynuitbreiding (α × 10⁻⁶/°C) | 18 | 17 | 17 | 19 | 19 | |
Smeltpunt (ongeveer )(°C) | 1400 | 1380 | 1390 | 1390 | 1390 | |
Verlenging by breuk (%) | > 20 | > 20 | > 20 | > 20 | > 20 | |
Mikrografiese struktuur | austeniet | austeniet | austeniet | austeniet | austeniet | |
Magnetiese eienskappe | nie-magneties | nie-magneties | nie-magneties | nie-magneties | nie-magneties |