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FeCrAl alloy 0Cr27Al7Mo2 high thermal efficiency Alchrome Alloy Resistance Wire
FeCrAl alloy 0Cr27Al7Mo2 high thermal efficiency Alchrome Alloy Resistance Wire (Working Temperature 1400C )
Nominal Analysis
27.00 Cr, 7.00 Al, 2.00 Mo, Bal. Fe
Max contineous working temperature: 1400 C.
Wire diameter: 0.5~12mm
Melting Temperature: 1520 C
Electrical Resistivity: 1.53 ohm mm2/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.
Shanghai TANKII ALLOY MATERIAL Co., Ltd.
| Chemical Composition and Main Property of Fe-Cr-Al Resistance Alloy | ||||||||
| Properties \ Grade | 1Cr13Al4 | 0Cr25Al5 | 0Cr21Al6 | 0Cr23Al5 | 0Cr21Al4 | 0Cr21Al6Nb | 0Cr27Al7Mo2 | |
| Main Chemical Composition (%) |
Cr | 12.0-15.0 | 23.0-26.0 | 19.0-22.0 | 22.5-24.5 | 18.0-21.0 | 21.0-23.0 | 26.5-27.8 |
| Al | 4.0-6.0 | 4.5-6.5 | 5.0-7.0 | 4.2-5.0 | 3.0-4.2 | 5.0-7.0 | 6.0-7.0 | |
| Re | opportune | opportune | opportune | opportune | opportune | opportune | opportune | |
| Fe | Bal. | Bal. | Bal. | Bal. | Bal. | Bal. | Bal. | |
| Nb0.5 | Mo1.8-2.2 | |||||||
| Max Continuous Service Temperature(oC) | 950 | 1250 | 1250 | 1250 | 1100 | 1350 | 1400 | |
| Resisivity 20oC (Ω mm2/m) | 1.25 ± 0.08 |
1.42 ± 0.06 |
1.42 ± 0.07 |
1.35 ± 0.07 |
1.23 ± 0.07 |
1.45 ± 0.07 |
1.53 ± 0.07 |
|
| Density(g/cm3) | 7.4 | 7.1 | 7.16 | 7.25 | 7.35 | 7.1 | 7.1 | |
| Thermal Conductivity | 52.7 | 46.1 | 63.2 | 60.2 | 46.9 | 46.1 | 45.2 | |
| (KJ/m@ h@ oC) | ||||||||
| Coefficient of Thermal Expansion(α × 10-6/oC) | 15.4 | 16 | 14.7 | 15 | 13.5 | 16 | 16 | |
| Approximate Melting Point( oC) | 1450 | 1500 | 1500 | 1500 | 1500 | 1510 | 1520 | |
| Tensile Strength(N/mm2) | 580-680 | 630-780 | 630-780 | 630-780 | 600-700 | 650-800 | 680-830 | |
| Elongation(%) | > 16 | > 12 | > 12 | > 12 | > 12 | > 12 | > 10 | |
| Section Variation | 65-75 | 60-75 | 65-75 | 65-75 | 65-75 | 65-75 | 65-75 | |
| Shrink Rate (%) | ||||||||
| Repeatedly Bend Frequency(F/R) | > 5 | > 5 | > 5 | > 5 | > 5 | > 5 | > 5 | |
| Hardness (H. B. ) | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | |
| Continuous Service Time | no | ≥ 80/1300 | ≥ 80/1300 | ≥ 80/1300 | ≥ 80/1250 | ≥ 50/1350 | ≥ 50/1350 | |
| Micrographic Structure | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | |
| Magnetic Property | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | |
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