High Temperature Thermostatic Bimetal 5J1070 strip

5J1070, 5J0756 have low thermal sensitivity, wide linear temperature range, and good oxidation resistance at high temperature.
5J1070 is suitable for ambient temperatures above 300 ° C.
  • 5j1070 Thermal bimetal 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: wide temperature range.Suitable for use under high temperature

    shop sign 5j1070
    With brand 5j23
    Composite layer
    High expansion layer Ni19Cr11
    middle layer --------
    Low expansion layer Ni42

    Chemical composition

    shop sign Ni Cr Fe Co Cu Zn Mn Si C S P
    Ni42 41.0~43.0 - allowance - - - ≤0.6 ≤0.3 0.05 0.02 0.02
    Ni19Cr11 18.0~20.0 10~12 allowance - - - 0.3~0.6 0.2~0.4 0.08 0.02 0.02


    Than bending K(20~135ºC) Temperature curvature
    F/(greenhouse ~ 130 ºC)
     resistivity Linear temperature
    / ºC
    Allows the use of temperature / ºC Density (g/cm after)
    Nominal value Allowable deviation Standard values Allowable deviation
    Level 1 Level  2
    10.8 ±8% ±10% 20.2%±10% 0.7 ±5% +20~350 -70~500 8.0


    Modulus of elasticity
    Hardness (HV) Tensile strength
    Allow stress MPa
    High expansion layer Low expansion layer  minimum biggest
    152~181 270~340 200~255 784~882 196 392
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