Pris Stoc 1mm*10mm 0Cr25Al5 Rhuban Fflat Rownd Burr Llain Arwyneb Disglair
1. Rhagymadrodd
Aloeon FeCrAl a ddefnyddir mewn ystod eang o gymwysiadau tymheredd uchel.
Mae gan Constantan [Cu55Ni45] gyfernod tymheredd isel o wrthedd ac fel aloi copr, mae'n hawdd ei sodro. Mae aloion gwrthiant cyson eraill yn cynnwys manganin [Cu86Mn12Ni2], Cupron [Cu53Ni44Mn3] ac Evanohm.
Mae gan y teulu Evanohm o aloion nicel-chrome [Ni72Cr20Mn4Al3Si1], [Ni73Cr20Cu2Al2Mn1Si], ymwrthedd uchel, cyfernod gwrthiant tymheredd isel, grym electromotive isel (potensial Galvani) pan fyddant mewn cysylltiad â chopr, cryfder tynnol uchel, a hefyd yn sefydlog iawn o ran i driniaeth wres.
2.Specification:
Gradd | Prif gyfansoddiad cemegol | Tymheredd uchaf ℃ | Rrsistivity µΩ.m | Pwynt toddi ℃ | Cryfder tynnol N/mm² | Elegiad % | Bywyd gwaith h/℃ | Magnetig eiddo | |||
Cr | Al | Ni | Fe | ||||||||
OCr21Al4 | 17-21 | 3-4 | - | - | 1100 | 1.23±0.06 | 1500 | 750 | ≥12 | ≥80/1250 | magnetig |
OCr25Al5 | 23-26 | 4.5-6.5 | - | - | 1250 | 1.42±0.07 | 1500 | 750 | ≥12 | ≥80/1300 | magnetig |
OCr21Al6Nb | 21-23 | 5-7 | - | - | 1350 | 1.43±0.07 | 1510 | 750 | ≥12 | ≥50/1350 | magnetig |
OCr27Al7Mo2 | 22-24 | 5-7 | - | - | 1400 | 1.53±0.07 | 1520 | 750 | ≥10 | ≥50/1350 | magnetig |
KSC | 26.8-27.8 | 6-7 | - | - | 1350 | 1.44±0.05 | 1510 | 750 | ≥16 | ≥60/1350 | magnetig |
Cr20Ni80 | 20-23 | - | Gorffwys | ≤1.0 | 1200 | 1.09±0.05 | 1400 | 750 | ≥20 | ≥80/1200 | Anfagnetig |
Cr30Ni70 | 30 | - | Gorffwys | ≤1.0 | 1250 | 1.18±0.05 | 1380. llarieidd-dra eg | 750 | ≥20 | ≥50/1250 | Anfagnetig |
Cr15Ni60 | 15-18 | - | 55 | Gorffwys | 1150 | 1.12±0.05 | 1390 | 750 | ≥20 | ≥80/1150 | Anfagnetig |
Cr20Ni35 | 18-21 | - | 35 | Gorffwys | 1100 | 1.04±0.05 | 1390 | 750 | ≥20 | ≥80/1100 | Magnetig gwan |
Cr20Ni30 | 20 | - | 32 | Gorffwys | 1100 | 1.04±0.05 | 1390 | 750 | ≥20 | ≥80/1100 | Magnetig gwan |
3.
Deunydd | Gwrthedd (ohm-cmil/ft) | Gwrthedd (10−6ohm-cm) |
---|---|---|
Alwminiwm | 15.94 | 2.650 |
Pres | 42.1 | 7.0 |
carbon (amorffaidd) | 23 | 3.95 |
Cystenyn | 272.97 | 45.38 |
Copr | 10.09 | 1.678 |
Haearn | 57.81 | 9.61 |
Manganin | 290 | 48.21 |
Molybdenwm | 32.12 | 5.34 |
Nichrome | 675 | 112.2 |
Nichrome V | 650 | 108.1 |
Nicel | 41.69 | 6.93 |
Platinwm | 63.16 | 10.5 |
Dur di-staen (304) | 541 | 90 |
Dur (0.5% carbon) | 100 | 16.62 |
Sinc | 35.49 | 5.90 |