STA Cr20Ni80/ FeCrAl electric heating wire/ flat heating wire
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- Supplier: Sta Refractory (zhengzhou) Co. Ltd.
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Description
Product Description
STA Cr20Ni80/ FeCrAl eletric heating wire/ flat heating wire
The iron-chromium high electric resistance alloy 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 Fe-Cr-Al high resistance and heating alloys
Alloy Nomenclature /Performance | 1Cr13Al4 | 0Cr25Al5 | 0Cr21Al6 | 0Cr23Al5 | 0Cr21Al4 | 0Cr21Al6Nb | 0Cr27Al7Mo2 | |
Main Chemical | 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 | |
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| Nb0.5 | Mo1.8-2.2 | |
Max. continuous service temp. of element | 650 | 1250 | 1250 | 1250 | 1100 | 1350 | 1400 | |
Resistivity at 20ºC | 1.25 | 1.42 | 1.42 | 1.35 | 1.23 | 1.45 | 1.53 | |
Density (g/cm3) | 7.40 | 7.10 | 7.16 | 7.25 | 7.35 | 7.10 | 7.10 | |
Thermal conductivity (KJ/m·h·ºC) | 52.7 | 46.1 | 63.2 | 60.2 | 46.9 | 46.1 | 45.2 | |
Coefficient of lines expansion(α×10-6/ºC) | 15.4 | 16.0 | 14.7 | 15.0 | 13.5 | 16.0 | 16.0 | |
Melting point(approx.) (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 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 | |
Nickel-chromium wire (straps) has high resistivity, good surface oxidation resistance, high temperature grade, high strength at high temperature, good processability and solderability, and can be widely used in metallurgy, household Electrical appliances, machinery manufacturing, etc. to do the heating element and the electrical industry resistance materials. Long service life, but because of nickel, so the price is relatively high.
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