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gwifren gwrthiant trydanol cr20ni30 ar gyfer coil gwresogi gwanwyn stôf trydan
gwresogi gwifren gwrthiant trydanol cr20ni30 ar gyfer stôf trydan
Prif Eiddo gwifren gwrthiant gwresogi
| Math | Cr20Ni80 | Cr15Ni60 | Cr30Ni70 | Cr20Ni35 | Cr20Ni30 | |
| Prif gyfansoddiad cemegol | Ni | Gorffwys | 55.0 ~ 61.0 | Gorffwys | 34.0 ~ 37.0 | 30.0 ~ 34.0 |
| Cr | 20.0 ~ 23.0 | 15.0 ~ 18.0 | 28.0 ~ 31.0 | 18.0 ~ 21.0 | 18.0 ~ 21.0 | |
| Fe | ≤1 | Gorffwys | ≤1 | Gorffwys | Gorffwys | |
| Tymheredd Uchaf (℃) | 1200 | 1150 | 1250 | 1100 | 1100 | |
| Gwrthiant Cyfernod cywiro tymheredd.(CT) | 1.09±0.05 | 1.11±0.05 | 1.18±0.05 | 1.04±0.05 | 1.06±0.05 | |
| Pwynt toddi (℃) | 1400 | 1390 | 1380. llarieidd-dra eg | 1390 | 1390 | |
| Gwrthedd ρ20 ℃ (10-6Ω.m) | 800 ℃ | 1.008 | 1.078 | 1.028 | 1.188 | 1.173 |
| 1000 ℃ | 1.014 | 1.095 | 1.033 | 1.219 | 1.201 | |
| 1200 ℃ | 1.025 | 1.043 | ||||
| Gwerth bywyd cyflym | tem.(℃) | 1175. llarieidd-dra eg | 1100 | 1200 | 1050 | 1050 |
| awr(h) | ≥110 | ≥100 | ≥110 | ≥100 | ≥100 | |
| Disgyrchiant penodol (g/cm3) | 8.4 | 8.2 | 8.1 | 7.9 | 7.9 | |
| elongation(%) | ≥25 | ≥25 | ≥20 | ≥20 | ≥20 | |
| Thermol (kj/mh ℃) | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 | |
| Gwres penodol (20 ℃) j / g. ℃ | 0.44 | 0.494 | 0. 461 | 0.5 | 0.5 | |
| Ymestyn cryfder (20 ~ 1000 ℃) α * 10-6 ℃ | 18 | 17 | 17.1 | 19 | 19 | |
| Cryfder tynnol (kg/mm2) | >85 | >85 | >85 | >85 | >85 | |
| Plygu dro ar ôl tro (F / R) | >12 | >12 | >12 | >12 | >12 | |
| Microstrwythur | Austenitig | Austenitig | Austenitig | Austenitig | Austenitig | |
| Diamedr(mm) | Goddefgarwch(mm) | Diamedr(mm) | Goddefgarwch(mm) |
| 0.03-0.05 | ±0.005 | >0.50-1.00 | ±0.02 |
| >0.05-0.10 | ±0.006 | >1.00-3.00 | ±0.03 |
| >0.10-0.20 | ±0.008 | >3.00-6.00 | ±0.04 |
| >0.20-0.30 | ±0.010 | >6.00-8.00 | ±0.05 |
| >0.30-0.50 | ±0.015 | >8.00-12.0 | ±0.4 |
| Trwch(mm) | Goddefgarwch(mm) | Lled(mm) | Goddefgarwch(mm) |
| 0.05-0.10 | ±0.010 | 5.00-10.0 | ±0.2 |
| >0.10-0.20 | ±0.015 | >10.0-20.0 | ±0.2 |
| >0.20-0.50 | ±0.020 | >20.0-30.0 | ±0.2 |
| >0.50-1.00 | ±0.030 | >30.0-50.0 | ±0.3 |
| >1.00-1.80 | ±0.040 | >50.0-90.0 | ±0.3 |
| >1.80-2.50 | ±0.050 | >90.0-120.0 | ±0.5 |
| >2.50-3.50 | ±0.060 | >120.0-250.0 | ±0.6 |
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