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, |
Resistohm 70, Cronix 70, Stablohm 710 | |
N8 | Chromel A, Ni 80, N8, Nichrome V, HAI-NiCr 80, Tophet A, Resistohm |
80, Cronix 80, Protoloy, Ni 8, Alloy A, MWS-650, Stablohm 650 |
Kev piav qhia
Alloy | Standard Strand Kev tsim kho, mm | Kuj, Ω / m | Strand Txoj kab uas hla Nominal, mm | Meter per Kilo |
NiCr 80/20 | 18 × 0.544 + 1 × 0.574 | 0.252-0.278 ib | 2.67 ib | 26 |
NiCr 80/20 | 19 × 0.61 | 0.205-0.250 Nws | 3.05 Nws | |
NiCr 80/20 | 18× 0.5231 × 0.574 | 0.27 ib1-0.299 ib | 2.67 ib | 30 |
NiCr 80/20 | 19 × 0.574 hli | 0.227-0.251 ib | 2.87 ib | 25 |
NiCr 80/20 | 36× 0.3851 × 0.45 | 0.265-0.293 ib | 2.76 | 26 |
NCV 60/15 | 19 × 0.508 | 0.286-0.318 ib | 2.54 ib | |
NCV 60/15 | 18 × 0.523 + 1 × 0.574 | 0.276-0.30 Nws5 | 2.76 ib | 30 |
Ni | 19 × 0.574 hli | 0.019-0.02 Nws1 | 2.87 ib | 21 |
Paub meej
Propertes / Qib | Cr20 Ni80 | Cr30Ni70 | Nc15Ni60 | Cr20Ni35 | Cr20Ni30 | |
Main tshuaj muaj pes tsawg leeg | Ni | So | So | 55.0-61.0 Nws | 34.0-37.0 Nws | 30.0-34.0 Nws |
Cr | 20.0-23.0 Nws | 28.0-31.0 Nws | 15.0-18.0 Nws | 18.0-21.0 Nws | 18.0-21.0 Nws | |
Fe | ≤ 1.0 | ≤ 1.0 | So | So | So | |
Max. kev pabcuam temp. ntawm element | 1200 | 1250 | 1150 | 1100 | 1100 | |
Resistivity ntawm 20oC (μΩ·m) | 1.09 Nws | 1.18 | 1.12 | 1.04 ib | 1.04 ib | |
Qhov ceev (g / cm3) | 8.4 | 8.1 | 8.2 | 7.9 ib | 7.9 ib | |
Thermal conductivity (KJ / m · h · oC) | 60.3 | 45.2 ib | 45.2 ib | 43.8 ib | 43.8 ib | |
Coefficient ntawm kab expansion (α × 10-6 / oC) | 18 | 17 | 17 | 19 | 19 | |
Melting point (kwv yees) (oC) | 1400 | 1380 | 1390 ib | 1390 ib | 1390 ib | |
Elongation ntawm rupture (%) | > 20 | > 20 | > 20 | > 20 | > 20 | |
Micrographic qauv | austenite | austenite | austenite | austenite | austenite | |
Cov khoom sib nqus | nonmagnetic | nonmagnetic | nonmagnetic | nonmagnetic | nonmagnetic |