Product Details
Place of Origin: Shanghai
Brand Name: TANKII
Certification: ISO9001
Model Number: ASTM TM18
Payment & Shipping Terms
Minimum Order Quantity: 100kg
Price: negotiable
Packaging Details: standard packing
Delivery Time: 8-15 days
Payment Terms: L/C, T/T, Western Union
Supply Ability: 300+ton+month
Model Name: |
ASTM TM18 |
Resistivity: |
0.7 |
Density: |
8.03 |
Temperature Scope: |
-70~430 |
Linear Temperature: |
90~320 |
Temperature Curvature: |
21.6%±5% |
Modulus Of Elasticity: |
1.72 |
The Highest Temperature: |
480 |
Model Name: |
ASTM TM18 |
Resistivity: |
0.7 |
Density: |
8.03 |
Temperature Scope: |
-70~430 |
Linear Temperature: |
90~320 |
Temperature Curvature: |
21.6%±5% |
Modulus Of Elasticity: |
1.72 |
The Highest Temperature: |
480 |
ASTM TM18 Thermal bimetal strip
overview
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 sign | ASTM TM18 | |
| With brand | ||
| Composite layer alloybrand |
High expansion layer | Ni19Cr2 |
| 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 |
| Ni19Cr3 | 18.0~20.0 | 2.0~4.0 | allowance | - | - | - | 0.3~0.6 | 0.15~0.30 | 0.25~0.35 | 0.02 | 0.02 |
performance
| 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 | |||||||
| 11.7 | ±8% | ±10% | 25.7%±10% | 0.7 | ±5% | +90~320 | -70~430 | 8.0 |
