Specifications
1.Professional manufacturer
2.Competitive price
3.Stable resistance
4.Long working life
Product Description
1. FeCrAl heating wire:
OCr27AL7Mo2, OCr21AL6Nb, OCr21AL6, OCr25AL5, OCr23AL5, OCr21AL4, 1Cr13AL4.
2. Nichrome heating wire:
Cr20Ni80, Cr30Ni70, Cr15Ni60, Cr20Ni35, Cr20Ni30.
3. Product forms and size range
Round wire
0.010-12 mm (0.00039-0.472 inch)
Other sizes are available on request.
Ribbon (flat wire)
Thickness: 0.023-0.8 mm (0.0009-0.031 inch)
Width: 0.038-4 mm (0.0015-0.157 inch)
Width/thickess ratio max 60, depending on alloy and tolerance
Other sizes are available on request.
4. Stranded wire
Some resistance heating alloys and pure nickel are available as stranded wire.
5. Marking
Each spool/package of wire is supplied with a label or tag showing alloy type, nominal size, gross and net weight, resistance W/m (W/ft), charge number and a reference number.
6. Stock program
We have a number of frequently used products in stock. Please contact us for details
| Type of alloy | Description |
| FeCrAl alloys | High-resistivity iron-chromium-aluminium alloys for use up to 1400º C (2550º F). |
| NiCr alloys | High-resistivity nickel-chromium alloys for use up to 1250º C (2280º F). |
| NiFe alloys | Low-resistivity nickel-iron alloys with high temperature coefficient of resistance for use up to 600º C (1110º F). |
| Cuprothal CuNi alloys | Medium- and low-resistivity copper-nickel alloys for use up to 600º C (1110º F). |
7.Parameters
| Alloy Nomenclature Performance | 1Cr13Al4 | 0Cr25Al5 | 0Cr21Al6 | 0Cr23Al5 | 0Cr21Al4 | 0Cr21Al6Nb | 0Cr27Al7Mo2 | |
| Main Chemical 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(° C) | 950 | 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/cm3) | 7.40 | 7.10 | 7.16 | 7.25 | 7.35 | 7.10 | 7.10 | |
| Thermal conductivity(KJ/m· h· º C) | 52.7 | 46.1 | 63.2 | 60.2 | 46.9 | 46.1 | ||
| Coefficient of lines expansion(α × 10-6/º C) | 15.4 | 16.0 | 14.7 | 15.0 | 13.5 | 16.0 | 16.0 | |
| Melting point approx. ( º C) | 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 | |
| Repeat 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 | |
| continuous servicetime(Hours/ º C) | -- | ≥ 80/1300 | ≥ 80/1300 | ≥ 80/1300 | ≥ 80/1250 | ≥ 50/1350 | ≥ 50/1350 | |
| Micrographic structure | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | |
| Magnetic properties | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | |
