Bimetal strip with two layers(5J1480 strip)
(Common Name: Kanthal 135,dimpty R80,Telcon 140)
Composition
| Grade |
5J1480 |
| High expansion layer |
Ni22Cr3 |
| Low expansion layer |
Ni36 |
Chemical composition(%)
| Grade |
C |
Si |
Mn |
P |
S |
Ni |
Cr |
Cu |
Fe |
| Ni36 |
≤0.05 |
≤0.3 |
≤0.6 |
≤0.02 |
≤0.02 |
35~37 |
- |
- |
Bal. |
| Grade |
C |
Si |
Mn |
P |
S |
Ni |
Cr |
Cu |
Fe |
| Ni22Cr3 |
≤0.35 |
0.15~0.3 |
0.3~0.6 |
≤0.02 |
≤0.02 |
21~23 |
2.0~4.0 |
- |
Bal. |
Typical Physical properties
| Density (g/cm3) |
8.2 |
| Electrical resistivity at 20ºC(ohm mm2/m) |
0.8±5% |
| Thermal conductivity, λ/ W/(m*ºC) |
22 |
| Elastic Modulus, E/ Gpa |
147~177 |
| Bending K / 10-6 ºC-1(20~135ºC) |
14.3 |
| Temperature bending rate F/(20~130ºC)10-6ºC-1 |
26.2%±5% |
| Allowable temperature (ºC) |
-70~ 350 |
| Linear temperature (ºC) |
-20~ 180 |
Application: The material is mainly in automatic control devices and instrumentation (eg: exhaust thermometers, thermostats, voltage regulators, temperature relay, automatic protection switching, diaphragm meters, etc.) make temperature control, temperature compensation, current limit, temperature indicator and other heat-sensitive components.
Feature: The basic characteristics of Thermostat Bimetallic is bending deformation with temperature changes, resulting in a certain moment.
Thermostat Bimetallic Strip expansion coefficient is different from the two or more layers of metal or alloy along the entire contact surface firmly bonded, having a temperature-dependent shape change occurs thermosensitive functional composites. Wherein the higher expansion coefficient of the active layer is a layer called a low coefficient of expansion of the layer is named passive layer.
Style of supply
| Alloys Name |
Type |
Dimension |
| 5J1480 |
Strip |
W= 5~120mm |
T= 0.1mm |
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