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. Ni70Cr 30
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.
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
|
Detailed Description of Stranded Wire:
Stranded wire is extremely versatile and employed in a number of
industrial, commercial, and consumer applications. While some
applications require solid conductor wires and cables, stranded
wire is often preferred for its greater degree of flexibility.
Stranded cables and wires are used heavily in industries which
require a great deal of lifting, support, and tension such as
aerospace, automotive, communications, chemical, electronics,
defense, security, and medical industries. To suit the needs of
these industries and more, stranded rope is increasingly
specialized. If uncertain, wire rope suppliers should be consulted
in order to select the proper wire and avoid potentially costly and
dangerous mechanical failures.
Stranded wires are identified by listing both the number of strands
and the amount of wires per strand respectively as well as the lay
and pitch of the rope. Identification codes can also extend to
specifics such as core type, workload limit, and more, listed in
abbreviated form.
The connections, fasteners, fittings, and other hardware attached
to the stranded wire are also important as they offer differing
degrees of wire versatility in terms of fray prevention and
connectivity.
Application
Cr20Ni80:in braking resistors,industrial furnaces,flat irons,
ironing machines, water heaters, plastic moulding dies, soldering
irons, metal sheathed tubular elements and cartridge elements.
Cr30Ni70:in industrial furnaces. well suited for reducing
atmospheres, as it is not subject to 'green rot'.
Cr15Ni60:in braking resistors,industrial furnaces,hot plates,
grills, toaster ovens and storage heaters. For suspended coils in
air heaters in clothes dryers, fan heaters, hand dryers.
Cr20Ni35:in braking resistors,industrial furnaces.In night-storage
heaters, convection heaters, heavy duty rheostats and fan heaters.
For heating cables and rope heaters in defrosting and de-icing
elements, electric blankets and pads, car seats, baseboard heaters
and floorheater.
Cr20Ni30:in solid hot plates, open coil heaters in HVAC systems,
night-storage heaters, convection heaters, heavy duty rheostats and
fan heaters.For heating cables and rope heaters in defrosting and
de-icing elements, electric blankets and pads, car seats, baseboard
heaters, floor heaters and resistors.
