Cr21Al6Nb Alchrome Alloy Wire for Heating Element
Cr21Al6Nb Alchrome Alloy Wire for Heating Element
Nominal Analysis
20.00 Cr, 5.00 Al, Bal. Fe
Max contineous working temperature: 1250ºC.
Melting Temperature: 1500ºC
Electric Resistivity: 1.35 micro ohm/m
Has been used extensively as heating elements in industrial furnaces and electrical kilns.
Has less hot strength than Tophet alloys but much higher melting point.
| Main Element | |||||||||
| ALLOYS | Ni | Cr | Fe | Resisivity 20°C (Ω mm2/m) |
Density (g/cm3) | Max.°C Temperature |
Melting Point°C | ||
| NiCr Alloy | |||||||||
| NiCr 80/20 | Bal. | 20.0~23.0 | ≤1.0 | 1.09 | 8.4 | 1200 | 1400 | ||
| NiCr 70/30 | Bal. | 28.0~31.0 | ≤1.0 | 1.18 | 8.1 | 1250 | 1380 | ||
| NiCr 60/15 | 55.0~61.0 | 15.0~18.0 | Bal. | 1.12 | 8.2 | 1150 | 1390 | ||
| NiCr 35/20 | 34.0~37.0 | 18.0~21.0 | Bal. | 1.04 | 7.9 | 1100 | 1390 | ||
| NiCr 30/20 | 30.0~34.0 | 18.0~21.0 | Bal. | 1.04 | 7.9 | 1100 | 1390 | ||
| NiCr 25/20 | 23.0~27.0 | 18.0~22.0 | Bal. | 0.95 | 7.8 | 1000 | 1290 | ||
| Ni | Cr | Al | Fe | Cu | Resisivity 20°C (Ω mm2/m) |
Density (g/cm3) | Max.°C Temperature |
||
| Karma | Bal. | 19~21.5 | 2.5~3.2 | 2~3 | - | 1.33 | 8.1 | -50-300 | |
| Evan | Bal. | 19~21.5 | 2.5~3.2 | - | 2~3 | 1.33 | 8.1 | -50-300 | |
| FeCrAl Alloy | Cr | Al | Fe | Re | Resisivity 20°C (Ω mm2/m) |
Density (g/cm3) | Max.°C Temperature |
Melting Point°C | |
| 1Cr13Al4 | 12.0~15.0 | 4.0~60 | Bal. | Proper | 1.25 | 7.40 | 950 | 1450 | |
| Cr15Al5 | |||||||||
| Cr21Al4 | 17.0~21.0 | 2.0-4.0 | Bal. | Proper | 1.23 | 7.35 | 1100 | 1500 | |
| Cr25Al5 | 23.0-26.0 | 4.5-6.5 | Bal. | Proper | 1.42 | 7.10 | 1250 | 1500 | |
| Cr21Al6 Cr23Al5 |
19.0~22.0 20.5-23.5 |
5.0-7.0 4.2-5.3 |
Bal. Bal. |
Proper Proper |
1.42 1.35 |
7.16 7.25 |
1250 1250 |
1500 1500 |
|
| Cr21Al6Nb | 21.0-23.0 | 5.0-7.0 | Bal. | Proper | 1.45 | 7.10 | 1350 | 1510 | |
| Cr27Al7Mo2 | 26.5-27.8 | 6.0-7.0 | Bal. | Proper | 1.53 | 7.10 | 1400 | 1520 | |
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