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 | 19 × 0.544 hli | 0.233-0.269 ib | 26 | |
NiCr 80/20 | 19 × 0.61 | 0.205-0.250 Nws | ||
NiCr 80/20 | 19 × 0.523 | 0.276-0.306 Nws | 2.67 ib | 30 |
NiCr 80/20 | 19 × 0.574 hli | 2.87 ib | 25 | |
NiCr 80/20 | 37 × 0.385 hli | 0.248-0.302 ib | 2.76 ib | 26 |
NCV 60/15 | 19 × 0.508 | 0.286-0.318 ib | ||
NCV 60/15 | 19 × 0.523 | 0.276-0.304 Nws | 30 | |
Ni | 19 × 0.574 hli | 0.020-0.027 Nws | 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 |
Tshuaj muaj pes tsawg leeg | Nickel, Chrome |
Qhov xwm txheej | Bright / Acid dawb / Oxied Xim |
Qib | Ni80Cr20, Ni70/30, Ni60Cr15, Ni60Cr23, Ni35Cr20Fe, Ni30Cr20 Ni80, Ni70, Ni60, Ni40, |
Qhov zoo | Nichrome lub metallurgical qauv confers lawv ib tug zoo heev plasticity thaum txias. |
Yam ntxwv | Kev ua haujlwm ruaj khov; Anti-oxidation; Corrosion tsis kam; Kub kub stability; Zoo heev coil-forming peev xwm; Uniform thiab zoo nkauj saum npoo yam tsis muaj pob. |