FOB Reference Price : Get Latest Price
heat resistance wire is a type of high resistance electrical wire. The wire resists the flow of electricity, and converts the electrical energy into heat.
Nichrome, a non-magnetic alloy of nickel and chromium, is commonly used to make resistance wire because it has a high resistivity and resistance to oxidation at high temperatures. When used as a heating element, resistance wire is usually wound into coils.
The high nickel content, in combination with the high chromium content let the scaling temperature can reach to 1250ºC
Chrome Nickel wire was shaped by means of high speed automatic cooling machine of which the power capacity is controlled by computer, they are available as wire and ribbon(strip).
nichrome alloy wire Product forms and size range
|
Nichrome Alloy Grade |
Cr20Ni80,Cr20Ni30,Cr15Ni60,Cr20Ni35,Cr20Ni40 |
|
Form |
Round wire,Flat wire,Strip,Bar,Spring shaped wire, Wave shaped strip,Radiant tube heater |
|
Size |
Wire: 0.030mm-10mm Ribbon: 0.05*0.2mm-2.0*6.0mm furnance spring wire according to customers requirement
|
nichrome alloy wire Features and advantages
1)The highest working temperature up to 1200 degree.
2)higher strength than iron chromium aluminum under high temperature
3)not easy to deform under high temperature
4)good plasticity
5)easy to repair,
6)high emissivity,
7)Non-magnetic
8)strong corrosion resistance,
9)long service life
nichrome alloy wire Application
Chrome nickel wire resistance is widely used for making electric heating elements in home appliances and industrial furnaces.,various electrical resistors and locomotive braking resistor, infrared equipment, liquefied gas infrared heat-resisting net, different kinds of igniting and radiating electrodes and voltage-regulating resistors for motors and so on in Metallurgical machinery
nichrome alloy wire Main characteristics
|
Type |
Cr20Ni80 |
Cr15Ni60 |
Cr30Ni70 |
Cr20Ni35 |
Cr20Ni30 |
|
|
|
||||||
|
Main chemical composition |
Ni |
Rest |
55.0~61.0 |
Rest |
34.0~37.0 |
30.0~34.0 |
|
Cr |
20.0~23.0 |
15.0~18.0 |
28.0~31.0 |
18.0~21.0 |
18.0~21.0 |
|
|
Fe |
≤1 |
Rest |
≤1 |
Rest |
Rest |
|
|
Maximal Temperature(℃) |
1200 |
1150 |
1250 |
1100 |
1100 |
|
|
Resistance Temperature correction coefficient.(CT) |
1.09±0.05 |
1.11±0.05 |
1.18±0.05 |
1.04±0.05 |
1.06±0.05 |
|
|
Melting point (℃) |
1400 |
1390 |
1380 |
1390 |
1390 |
|
|
Resistivityρ20℃(10-6Ω.m) |
800℃ |
1.008 |
1.078 |
1.028 |
1.188 |
1.173 |
|
1000℃ |
1.014 |
1.095 |
1.033 |
1.219 |
1.201 |
|
|
1200℃ |
1.025 |
|
1.043 |
|
|
|
|
Fast life value |
Tem.(℃) |
1175 |
1100 |
1200 |
1050 |
1050 |
|
hour(h) |
≥110 |
≥100 |
≥110 |
≥100 |
≥100 |
|
|
Specific gravity(g/cm3) |
8.40 |
8.2 |
8.1 |
7.90 |
7.90 |
|
|
Elongation(%) |
≥25 |
≥25 |
≥20 |
≥20 |
≥20 |
|
|
Thermal(kj/m.h.℃) |
60.3 |
45.2 |
45.2 |
43.8 |
43.8 |
|
|
Specific heat(20℃)j/g.℃ |
0.440 |
0.494 |
0.461 |
0.500 |
0.500 |
|
|
Extend strength(20~1000℃)α*10-6℃ |
18.0 |
17.0 |
17.1 |
19.0 |
19.0 |
|
|
Tensile strength(kg/mm2) |
>85 |
>85 |
>85 |
>85 |
>85 |
|
|
Repeatedly bending(F/R) |
>12 |
>12 |
>12 |
>12 |
>12 |
|
|
Microstructure |
Austenitic |
Austenitic |
Austenitic |
Austenitic |
Austenitic |
|
nichrome alloy wire Notice
Resistance electric heating wire has strong antioxidant properties, but a variety of gases in furnaces such as air, carbon, sulfur, hydrogen and nitrogen atmosphere, still have a certain impact on it.
Although these heating wires all have had antioxidant treatment, the transportation, winding, installation and other process will cause damage to a certain extent and reduce its service life.
In order to extend the service life, customers need to do pre oxidation treatment before using. The method is to heat alloy elements which have installed completely in the dry air to the temperature (lower 100-200C than its maximum using temperature), heat preservation for 5 to 10 hours, then cooling slowly with furnace.
Pictures of nichrome alloy wire
WHY CHOOSE US
.webp)
WORKSHOP EQUIPMENT
.webp)
PACKAGE DELIVERY
.webp)
You may also like
In order to offer you the exact quotaiton, could you pls kindly inform us the detailed item, size, material grade, quantity and other requirements.