1.13 Resistivity Thermal Bimetal Strip Ni36 Alloy for Temperature Control Systems -20°C to 200°C Range
Price:
dollar + 35 + kg
MOQ:
20kg
Delivery Time:
15day
Brand:
tankii
Product Description
Product Overview
Thermal bimetal strip consists of two or more layers of metal or alloy bonded together, with different thermal expansion coefficients. This composite material changes shape in response to temperature variations. The high expansion coefficient layer serves as the active layer, while the low expansion coefficient layer acts as the passive layer. For applications requiring high resistivity with similar thermal sensitivity, an intermediate shunt layer can be added between the two primary layers to achieve specific resistivity control.
Key Features
- High thermal sensitivity and resistivity properties
- Lower elastic modulus and allowable stress
- Enhanced instrument sensitivity
- Compact size for faster response times
- Converts thermal energy into mechanical work for automatic control
Technical Specifications
Material Composition
| Shop Sign | High Expansion Layer | Middle Layer | Low Expansion Layer |
|---|---|---|---|
| TANKII 200 | Mn75Ni15Cu10 (Mn72Ni10Cu18) | -------- | Ni36 |
Chemical Composition
| Alloy | Ni | Fe | Cu | Mn | Si | C | S | P |
|---|---|---|---|---|---|---|---|---|
| Ni36 | 35.0-37.0% | Balance | - | ≤0.6% | ≤0.3% | 0.05% | 0.02% | 0.02% |
| Mn72Ni10Cu18 | 8.0-11.0% | ≤0.8% | 17.0-19.0% | Balance | ≤0.5% | 0.05% | 0.03% | 0.02% |
| Mn75Ni15Cu10 | 14.0-16.0% | ≤0.8% | 9.0-11.0% | Balance | ≤0.5% | 0.05% | 0.02% | 0.03% |
Performance Characteristics
| Parameter | Nominal Value | Allowable Deviation | Standard Values |
|---|---|---|---|
| Specific Bending K(20-135°C) | 20.8 | ±5% / ±7% | 39.0%±5% |
| Resistivity | 1.13 | ±5% | - |
| Linear Temperature Range | -20-150°C | -70-200°C | 7.7 g/cm³ |
Mechanical Properties
| Property | High Expansion Layer | Low Expansion Layer |
|---|---|---|
| Modulus of Elasticity (GPa) | 113-142 | 190-240 |
| Hardness (HV) | 200-255 | 736-834 |
| Tensile Strength (MPa) | 147 | 294 |
Manufacturing Process
Cold rolling → Degreasing → Pickling → Annealing → Cold rolling → Degreasing → Pickling → Annealing → Cold rolling → Final thermal bimetal strip meeting application requirements
Applications
Widely used in control systems and temperature sensors for measuring instruments, converting thermal energy into mechanical work for automatic temperature regulation and monitoring applications.
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Get in Touch
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Company
Shanghai Tankii Alloy Material Co.,Ltd
Location
1900 Mudanjiang Road, Baoshan District, 201999, Shanghai, China
Contact Person
Martin Lee