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ohmalloy material co., ltd

Products >> Ohmalloy-5J1580 Thermostatic Bimetal Strip

Ohmalloy-5J1580  Thermostatic Bimetal Strip

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Description
Product Name: Ohmalloy-5J1580 Thermostatic Bimetal Strip
Supply Ability: 80000 Kilogram/Kilograms per Week
Related proudcts strip, thermostatic bimetal,
Specifications W= 5~120mm T= 0.1mm
Price Term: FOB
Port of loading: shanghai
Minimum Order 20 Kilogram/Kilograms
Unit Price: US $30 - 50 / Kilogram

OhmAlloy-5J1580 (Bimetallic strip)

(Common Name: Kanthal 155)

Bimetallic strip is used to convert a temperature change into mechanical displacement. The strip consists of two strips of different metals which expand at different rates as they are heated, usually steel and copper, or in some cases steel and brass. The strips are joined together throughout their length by riveting, brazing or welding. The different expansions force the flat strip to bend one way if heated, and in the opposite direction if cooled below its initial temperature. The metal with the higher coefficient of thermal expansion is on the outer side of the curve when the strip is heated and on the inner side when cooled
The sideways displacement of the strip is much larger than the small lengthways expansion in either of the two metals. This effect is used in a range of mechanical and electrical devices. In some applications the bimetal strip is used in the flat form. In others, it is wrapped into a coil for co***ctness. The greater length of the coiled version gives improved sensitivity.


Diagram of a bimetallic strip showing how the difference in thermal expansion in the two metals leads to a much larger sideways displacement of the strip
Composition
Grade 5J1580
High expansion layer Ni20Mn6
Low expansion layer Ni36



Chemical composition(%)

Grade C Si Mn P S Ni Cr Cu Fe
Ni36 ¡Ü0.05 ¡Ü0.3 ¡Ü0.6 ¡Ü0.02 ¡Ü0.02 35~37 - - Bal.

Grade C Si Mn P S Ni Cr Cu Fe
Ni20Mn6 ¡Ü0.05 0.15~0.3 5.5~6.5 ¡Ü0.02 ¡Ü0.02 19~21 - - Bal.

Typical Physical properties
Density (g/cm3) 8.1
Electrical resistivity at 20℃(&©|8486;mm2/m) 0.8¡À5%
Thermal conductivity, ¦Ë/ W/(m*℃) 12
Elastic Modulus, E/ Gpa 147~177
Bending K / 10-6 ℃-1(20~135℃) 15
Temperature bending rate F/£¨20~130℃£©10-6℃-1 28.5%¡À5%
Allowable temperature (℃) -70~ 350
Linear temperature (℃) -20~ 180


Application: The material is mainly in automatic control devices and instrumentation (eg: exhaust thermometers, thermostats, voltage regulators, temperature re

Contact Us
Company: ohmalloy material co., ltd
Contact: Mr. xiaofeng Qiu
Address: youyi road, baoshan, shanghai
Postcode:
Tel: 66796338
Fax: 66796339
E-mail:         


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Tel : 66796338 Fax : 66796339
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