ASTM TM29 Thermal bimetal strip
shop sign TM29
High expansion layer Ni20Mn6
middle layer ---------
Low expansion layer Ni36
Chemical composition
| shop sign | Ni | Cr | Fe | Co | Cu | Zn | Mn | Si | C | S | P |
| ≤ |
| Ni36 | 35.0~37.0 | - | allowance | - | - | - | ≤0.6 | ≤0.3 | 0.05 | 0.02 | 0.02 |
| Ni20Mn6 | 19.0~21.0 | - | allowance | - | - | - | 5.5~6.5 | 0.15~0.30 | 0.05 | 0.02 | 0.02 |
performance
Than bending K(20~135ºC) 15.0±5%
Temperature curvatureF/(greenhouse ~ 130 ºC) 28.5%±5%
resistivity(μΩ·m) 0.8±5%
Density (g/cm3) 8.1
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
Shanghai Tankii alloy material co., LTD is a company specializing
in the production of Thermal bimetal alloy,nickel chromium alloy,
copper, nickel alloy, iron chromium alloy, nickel alloy,
thermocouple wire, pure nickel, and other precision alloy round
wire, flat wire, wire rod, flat, wide and thin of large
enterprises.Our factory has advanced production equipment, from
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heating products have been exported to international
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system certification and environmental protection system
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quality first" in pursuit of scientific and technological
innovation, create the first brand alloys as the business
philosophy to the quality strives for the survival, to the survival
and development.Professional and sincere hospitality is our
aim.Warmly welcome people at home and abroad and the general new
old customers to come to ask price inquiry, ask for samples,
negotiate the business, technology, enhance friendship and create
brilliant.
