Material 0cr21AL6Nb Resistance High Temperature Cable For
Industrial Heating Elements
1. Introduction
High temperature heating wires are used for making electric heating elements in home appliances and
industrial furnaces. Typical applications are flat irons, ironing
machines, water heaters, plastic moulding dies, soldering irons,
metal sheathed tubular elements and cartridge elements.
2. parameters
| Alloy Type | Diameter
(mm) | Resistivity
(μΩm)(20°C) | Tensile
Strength
(N/mm²) | Elongation(%) | Bending
Times | Max.Continuous
Service
Temperature(°C) | Working Life
(hours) |
| Cr20Ni80 | <0.50 | 1.09±0.05 | 850-950 | >20 | >9 | 1200 | >20000 |
| 0.50-3.0 | 1.13±0.05 | 850-950 | >20 | >9 | 1200 | >20000 |
| >3.0 | 1.14±0.05 | 850-950 | >20 | >9 | 1200 | >20000 |
| Cr30Ni70 | <0.50 | 1.18±0.05 | 850-950 | >20 | >9 | 1250 | >20000 |
| ≥0.50 | 1.20±0.05 | 850-950 | >20 | >9 | 1250 | >20000 |
| Cr15Ni60 | <0.50 | 1.12±0.05 | 850-950 | >20 | >9 | 1125 | >20000 |
| ≥0.50 | 1.15±0.05 | 850-950 | >20 | >9 | 1125 | >20000 |
| Cr20Ni35 | <0.50 | 1.04±0.05 | 850-950 | >20 | >9 | 1100 | >18000 |
| ≥0.50 | 1.06±0.05 | 850-950 | >20 | >9 | 1100 | >18000 |
| 1Cr13Al4 | 0.03-12.0 | 1.25±0.08 | 588-735 | >16 | >6 | 950 | >10000 |
| 0Cr15Al5 | | 1.25±0.08 | 588-735 | >16 | >6 | 1000 | >10000 |
| 0Cr25Al5 | | 1.42±0.07 | 634-784 | >12 | >5 | 1300 | >8000 |
| 0Cr23Al5 | | 1.35±0.06 | 634-784 | >12 | >5 | 1250 | >8000 |
| 0Cr21Al6 | | 1.42±0.07 | 634-784 | >12 | >5 | 1300 | >8000 |
| 1Cr20Al3 | | 1.23±0.06 | 634-784 | >12 | >5 | 1100 | >8000 |
| 0Cr21Al6Nb | | 1.45±0.07 | 634-784 | >12 | >5 | 1350 | >8000 |
| 0Cr27Al7Mo2 | 0.03-12.0 | 1.53±0.07 | 686-784 | >12 | >5 | 1400 | >8000 |
| NAME | 1Cr13Al4 | 0Cr25Al5 | 0Cr21Al6 | 0Cr23Al5 | 0Cr21Al4 | 0Cr21Al6Nb | 0Cr27Al7Mo2 |
| MAIN CHEMICAL | 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 |
| COMPOSITION | Re | opportune | opportune | opportune | opportune | opportune | opportune | opportune |
| Fe | Rest | Rest | Rest | Rest | Rest | Rest | Rest |
| | | | | | | Nb0.5 | Mo1.8-2.2 |
| MAX TEMPERATURE(oC) | 650 | 1250 | 1250 | 1250 | 1100 | 1350 | 1400 |
| RESISTANCE20oC (μΩ·m) | 1.25 | 1.42 | 1.42 | 1.35 | 1.23 | 1.45 | 1.53 |
| DENSITY(g/cm3) | 7.4 | 7.1 | 7.16 | 7.25 | 7.35 | 7.1 | 7.1 |
| HEAT EXCHANGE | 52.7 | 46.1 | 63.2 | 60.2 | 46.9 | 46.1 | 45.2 |
| | | | | | | |
| RATE(KJ/m·h·oC) | | | | | | | |
| expansion rate(α×10-6/oC) | 15.4 | 16 | 14.7 | 15 | 13.5 | 16 | 16 |
| 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 |
| 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 property | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic |
3. Characteristics
1) Excellent straightness
2) High strength in high temperature
3) Uniform and beautiful surface condition without spots
4) Excellent coil-forming ability
5) Good corrosion resistance
4. Applications
1) This wire can also be widely used in generally specified for
transistor caps, anodes for electronic tubes,
leads of electronic components / lead-in-wires for lamps and for
wire-mesh. Also used in strip form for various applications
including Ni-Cd batteries
2) Also used for cables, Lead-in-Wire for lamps, electronic tube
supports, wire cloth electrical connecting leads where temperatures
are in excess of those for which copper is suitable, wire weaving
3) Typical applications include: terminations for heating elements
as in ovens, plastics extruders, furnaces. Filament supports and
lead wires in the lighting industry
5. Transportation
