Description
MICC Nicr8020 Nichrome Wire 0.32 Resistance wire
Our resistance wire(heating wire) has the characteristics of high rate of resistance, small resistance temperature coefficient and high use temperature. It has a good corrosion resistance at high temperature, low price and is particularly suitable for using in the atmosphere of sulfur and sulfide, so it is an ideal heating material used in industrial furnaces, household appliances and far-infrared devices.
Main characteristics of FeCrAl high resistance and heating alloys
| Alloy Nomenclature / Performance | 1Cr13Al4 | 0Cr25Al5 | 0Cr21Al6 | 0Cr23Al5 | 0Cr21Al4 | 0Cr21Al6Nb | 0Cr27Al7Mo2 |
| Main hemical composition | Cr | 12.0-15.0 | 23.0-26.0 | 19.0-22.0 | 20.5-23.5 | 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 | 4.2-5.3 | 3.0-4.2 | 5.0-7.0 | 6.0-7.0 |
| Re | opportune | opportune | opportune | opportune | opportune | opportune | opportune |
| Fe | Rest | Rest | Rest | Rest | Rest | Rest | Rest |
| | | | | | | Nb0.5 | Mo1.8-2.2 |
| Max. continuous service temp. of element | 650 | 1250 | 1250 | 1250 | 1100 | 1350 | 1400 |
| Resistivity at 20º C (μ Ω @ m) | 1.25 | 1.42 | 1.42 | 1.35 | 1.23 | 1.45 | 1.53 |
| Density (g/cm 3 ) | 7.4 | 7.1 | 7.16 | 7.25 | 7.35 | 7.1 | 7.1 |
| Thermal conductivity(KJ/m@ h@ º C) | 52.7 | 46.1 | 63.2 | 60.2 | 46.9 | 46.1 | 45.2 |
| Coefficient of lines expansion(α × 10-6/º C) | 15.4 | 16 | 14.7 | 15 | 13.5 | 16 | 16 |
| Melting point (approx. ) (º C) | 1450 | 1500 | 1500 | 1500 | 1500 | 1510 | 1520 |
| Tensile strength (N/mm 2 ) | 580-680 | 630-780 | 630-780 | 630-780 | 600-700 | 650-800 | 680-830 |
| Elongation at rupture(%) | > 16 | > 12 | > 12 | > 12 | > 12 | > 12 | > 10 |
| Variation of area(%) | 65-75 | 60-75 | 65-75 | 65-75 | 65-75 | 65-75 | 65-75 |
| Bending 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 |
| Micrographic structure | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite |
| Magnetic properties | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic |
Complaint
