NiCr C Resistance Alloy Wire/ Fine Wire Ni 60% Cr15% Electric
Heating Wire
1. Nichrome Alloy
Nichrome wire is made of a non-magnetic alloy composed primarily of
nickel, chromium, and iron. Nichrome is characterized by its high
resistivity and good oxidation resistance. Nichrome wire also has
good ductility after use and excellent weldability.
The number that comes after the Nichrome wire type indicates the
percentage of nickel in the alloy. For example, "Nichrome 60" has
approximately 60% Nickel in its composition.
Applications for Nichrome wire include heating elements of hair
dryers, heat sealers, and ceramic support in kilns.
2. NiCr C
It is ideal for use as heating elements in household utilities and
in moderate heat, high humidity environments.
Applications: Metal sheathed tubular elements used in, for example,
hot plates, grills, toaster ovens and storage heaters. The alloy is
also used for suspended coils in air heaters in clothes dryers, fan
heaters, hand dryers.
3. Other Nichrome Alloy
Nichrome 20
This alloy has moderate resistance to oxidation.
Applications: Refractory anchor bolts, element fastener, and
terminals attached to nickel-chromium heating elements.
Nichrome 30
This alloy is also used for heating cables and rope heaters in
defrosting and de-icing elements, resistors, floor heaters,
electric blankets and pads, baseboard heaters, and car seats.
Applications: Heavy duty rheostats, open coil heaters in HVAC
systems, night-storage heaters, solid hot plates, convection
heaters, and fan heaters.
Nichrome 40
Applications: Night-storage heaters, convection heaters, heavy duty
rheostats, fan heaters, heating cables and rope heaters in
defrosting and de-icing elements, electric blankets and pads, car
seats, baseboard heaters and floor heaters, and resistors.
Nichrome 70
Nichrome 70 is great for reducing atmospheres, as it is not subject
to 'green rot'.
Applications: This type of Nichrome wire is used in electrical
heating elements in industrial furnaces.
Nichrome 80
Nichrome 80 has very good form stability. This alloy offers
superior service life compared to other Nichrome wire types due to
the excellent adhesion properties of its surface oxide.
It is commonly used for industrial furnaces and heating elements in
home appliances.
Applications: Water heaters, flat irons, ironing machines, plastic
moulding dies, soldering irons, metal sheathed tubular elements and
cartridge elements.
Specification:
| Alloy Type | Diameter | Resistivity | Tensile | Elongation
(%) | Bending | Max.
Continuous | Working
Life |
| (mm) | (μΩm)(20°C) | Strength | Times | Service | (hours) |
| (N/mm²) | | Temperature
(°C) |
| 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 |
