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AS25 Thermal Bimetal Precision Alloy For Circuit Breaker

Categories Precision Alloy
Brand Name: TANKII
Model Number: AS25
Certification: ISO 9001
Place of Origin: Shanghai
MOQ: 100kg
Price: negotiable
Payment Terms: L/C, T/T, Western Union
Supply Ability: 180+ton+per month
Delivery Time: 10-18 days
Packaging Details: plastic film winding,put into carton, wooden case
model no.: AS25
density: 8.3
allowed temperature: -70~370ºC
Linear temperature range: -20~150
resistivity: 0.25
bending: 13.1
The highest temperature: 480
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AS25 Thermal Bimetal Precision Alloy For Circuit Breaker

AS25 Thermal bimetal alloy strip

Thermal bimetal strip is by the different expansion coefficient of two or more than two layers of metal or metal solid combination, and along the entire interface varies with temperature and the thermal function of shape changes in composite materials.One of high expansion coefficient become active layer, low expansion coefficient becomes passive.When requirements with high resistivity, but heat sensitive resistance performance is essentially the same type of thermal bimetal series, can be added between the two layers of different thickness of middle layer as a shunt layer, is to achieve the purpose of control different resistivity.
The basic characteristic of the thermal bimetal is changing with temperature and temperature deformation, resulting in a certain moment.Many devices use this feature to convert heat energy into mechanical work to achieve automatic control.Thermal bimetal used for control system and temperature sensor in the measuring instrument.
Main features: Linear temperature range is higher, low thermal performance, can be used at high temperature.

shop signAS25
With brand
Composite layer
alloybrand
High expansion layerNi22Cr3
middle layerNi
Low expansion layerNi36

Chemical composition

shop signNiCrFeCoCuZnMnSiCSP
Ni3635.0~37.0-allowance---≤0.60≤0.30.050.020.02
Ni≥99.3-≤0.15-≥0.15--0.15-0.015
Ni22Cr321.0~23.02.0~4.0allowance---0.3~0.60.15~0.300.25~0.350.020.02

performance

Than bending K(20~135ºC)Temperature curvature
F/(greenhouse ~ 130 ºC)
resistivityLinear temperature
/ ºC
Allows the use of temperature / ºCDensity (g/cm after)
Nominal valueAllowable deviationStandard valuesAllowable deviation
Level 1Level 2
13.5±5%±10%24.7%±5%0.25±10%-20~150-70~3708.3

use:Thermal relay, circuit breaker, motor overload saturator heat sensitive components

production process
Cold rolled →go oil → pickling → annealing cold-rolled →oil → pickling → annealing cold-rolled → conform to the requirements of the use of thermal bimetal strip

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