Nickel Chrome Heating Wire (Ni-Cr) Description
Nickel Chrome Heating Wire (Ni-Cr) has excellent corrosion resistance and high resistivity to oxidation. It is widely used in industrial applications for rheostats and resistance units. It makes for compact units capable of withstanding severe overloads and short circuits without damage or circuit impairment.
Nickel Chrome Heating Wire (Ni-Cr) Specifications
Item
|
Cr20Ni80
|
Cr30Ni70
|
Cr15Ni60
|
Cr20Ni35
|
Cr20Ni30
|
Main chemical composition %
|
Ni
|
77~80
|
69~72
|
55~61
|
34~37
|
30~34
|
Cr
|
20~23
|
28~31
|
15~18
|
18~21
|
18~21
|
Fe
|
Bal.
|
Bal.
|
Bal.
|
Bal.
|
Bal.
|
Max continuous Temp. (℃)
|
1200
|
1200
|
1150
|
1100
|
1100
|
Resistivity (µΩ·cm)
|
1.09
|
1.09
|
1.12
|
1
|
1.04
|
Density (g/cm3)
|
8.4
|
8.4
|
8.2
|
7.9
|
7.9
|
Thermal conductivity (KJ/M.h℃)
|
60.3
|
60.3
|
45.2
|
43.8
|
43.8
|
Coefficient of liner expansion (a*10-5/℃)
|
18
|
18
|
17
|
19
|
19
|
Melting point (℃)
|
1400
|
1400
|
1390
|
1390
|
1390
|
Elongation (%)
|
720
|
720
|
720
|
720
|
720
|
Micrographic structure
|
Austenitic
|
Austenitic
|
Austenitic
|
Austenitic
|
Austenitic
|
Nickel Chrome Heating Wire (Ni-Cr) Applications
Nickel Chrome Heating Wire (Ni-Cr) is suitable for making high-value electrical resistors, heating wires, heating cords and cables.
Nickel Chrome Heating Wire (Ni-Cr) Packaging
Our Nickel Chrome Heating Wire (Ni-Cr) is carefully handled during storage and transportation to preserve the quality of our product in its original condition.
Nickel Chrome Heating Wire (Ni-Cr) FAQs
Q1. What is Nickel Chrome Heating Wire?
Nickel chrome heating wire, commonly known as Nichrome wire, is an alloy made primarily of nickel and chromium. It is known for its high electrical resistance and ability to withstand high temperatures.
Q2. What are the common uses of Nickel Chrome Heating Wire?
- Heating Elements: Used in electric heaters, toasters, hair dryers, and industrial furnaces.
- Resistors: Utilized in precision resistors for electronic devices.
- Laboratory Applications: Used in kilns, heat sealers, and high-temperature experiments.
Q3. Why is Nichrome wire used for heating elements?
Nichrome wire is chosen for heating elements due to its high electrical resistance, ability to withstand high temperatures without oxidizing, and good mechanical strength.