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電熱絲 Electric Heating Wire
Production information
電熱絲 NiCr，NiCrFe，FeCrAl。他們有高電阻，並具備相當優秀的可塑性。及可焊性。可用來製作加熱元件及電阻器。
| Cr15Ni60 | Cr20Ni80 | Cr20Ni30 | Cr21A14 | Cr25A15 | Cr21A16 | |||
| 主要化學 成分 Main Chemical composition % |
鉻Cr |
15-18 | 20-23 | 18-21 | 17-21 | 23-26 | 19-22 | |
| 鎳Ni | 55-61 | rest | 30-34 | 2-4 | 4.5-6.5 | 5-7 | ||
| 鐵Fe | rest | ------------ | rest | rest | rest | rest | ||
| 錸Re | 適量 | 適量 | 適量 | |||||
| 錳Mn | ≦0.7 | ≦0.7 | ≦0.7 | |||||
| 元件最大連續使用溫度 Max continuous service temp of element ℃ |
1100 | 1150 | 1100 | 1100 | 1300 | 1300 | ||
| 密度Density(g/cm³) | 8.2 | 8.4 | 7.9 | 7.35 | 7.1 | 7.1 | ||
| 熔點melting point (approx.)℃ | 1390 | 1400 | 1390 | 1500 | 1500 | 1500 | ||
| 伸展Elongating% | >20 | >20 | >30 | >14 | >20 | >12 | ||
| 電阻力 (at 20℃) Resistivity at 20℃Ω mm/m² |
1.12-1.15 ±0.05 |
1.09-1.14 ±0.05 |
1.04-1.06 ±0.05 |
------------ | ------------ | ------------ | ||
| 顯微結構 micrographic structure |
A | A | A | ------------ | ------------ | ------------ | ||