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0.22×4mm ASTM TM-8/5J14140/TB14140/ ТБ160/122/TM-1 Thermostatic Bimetallic Strip
| Place of Origin | Shanghai |
|---|---|
| Brand Name | Huona |
| Certification | ISO9001 |
| Model Number | 5J14140 |
| Minimum Order Quantity | 10KG |
| Price | Negotiable |
| Packaging Details | Carton/Wooden case |
| Delivery Time | 5-21 days |
| Payment Terms | L/C,T/T,Western Union |
| Supply Ability | 500 tons per month |
Product Details
| Alloy Grade | 5J14140 | Thickness | 0.22mm |
|---|---|---|---|
| Width | 4mm | Form | Coil |
| Specific Bending (20~100℃) | 260~280×10⁻⁶/℃ | Operating Temperature Range | -20℃ ~ +150℃ (continuous); -70℃ ~ +200℃ (ultimate) |
| Electrical Resistivity (20℃) | 1.4~1.6μΩ·m | Tensile Strength | Tensile Strength |
| Highlight | thermostatic bimetallic strip 0.22×4mm,ASTM TM-8 bimetallic strip,thermostatic strip TB14140 |
||
Product Description
5J14140 Thermostatic Bimetallic Strip (0.22×4mm)
Product Overview
5J14140 thermostatic bimetallic strip (0.22mm thickness × 4mm width) from Huona New Material is a precision composite material compliant with GB/T 4461 standard, classified as a medium-sensitivity and high-resistivity thermostatic bimetal. It is manufactured by vacuum composite rolling of a high-expansion active layer (Mn72Ni10Cu18) and a low-expansion passive layer (Ni36). This grade combines moderate thermal sensitivity, high electrical resistivity, and good corrosion resistance, making it suitable for temperature control, compensation, and overload protection components in the medium temperature range (-20~150℃). It is a core material for temperature control in industrial electrical appliances and smart home devices.
Domestic & International Corresponding Grades
- China: 5J14140 (GB/T 4461)
- USA: ASTM TM-8, FPA 721-140
- Germany: TB14140
- Russia: ТБ160/122 (ТБ1613)
- Japan: TM-1
Core Specifications & Parameters
- Alloy Grade: 5J14140 (Equivalent to ASTM TM-8, FPA 721-140)
- Dimensions: Thickness 0.22mm (Tolerance: ±0.005mm); Width 4mm (Tolerance: ±0.08mm)
- Form: Coil (Standard length: 200m/roll); Custom cut-to-size available
- Layer Structure: Active layer (Mn72Ni10Cu18) + Passive layer (Ni36), no intermediate layer
- Linear Temperature Range: -20℃ ~ +150℃; Ultimate Service Temperature: -70℃ ~ +200℃
- Specific Bending (20~100℃): 260~280×10⁻⁶/℃
- Electrical Resistivity (20℃): 1.4~1.6μΩ·m
- Tensile Strength: ≥520MPa
- Elongation: ≥18%
- Bonding Strength: ≥150MPa (No delamination under thermal cycling)
- Compliant Standards: GB/T 4461-2016, ASTM B388, RoHS 2.0, REACH
- Manufacturer: Huona New Material (Shanghai) Co., Ltd., certified to ISO 9001 and IATF 16949
Key Core Advantages
1. Balanced Thermal Sensitivity & Stability
With a specific bending of 260~280×10⁻⁶/℃ (20~100℃), it provides moderate thermal response sensitivity, which is suitable for scenarios requiring stable and predictable bending deformation without excessive sensitivity. It maintains excellent thermal stability in the medium temperature range (-20~150℃), with no permanent deformation after repeated thermal cycling.
2. High Electrical Resistivity
The resistivity of 1.4~1.6μΩ·m (20℃) is significantly higher than that of ordinary bimetallic strips, making it ideal for temperature control components integrated with heating functions (such as thermal fuses, temperature-sensitive switches) and reducing the need for additional resistance elements.
3. Excellent Mechanical Properties & Bonding Strength
Tensile strength ≥520MPa and elongation ≥18% ensure good formability, enabling stamping, bending, and punching into small-sized and complex-shaped components. The vacuum composite rolling process ensures strong interlayer bonding (≥150MPa), effectively preventing delamination under thermal expansion, contraction, and mechanical stress.
4. Good Corrosion & Fatigue Resistance
The Mn72Ni10Cu18 active layer and Ni36 passive layer have good resistance to atmospheric corrosion and mild chemical corrosion, adapting to industrial and household environments. It also has excellent fatigue resistance, withstanding thousands of thermal cycles without cracking or performance degradation.
5. Wide Compatibility & Versatile Processability
It is fully compatible with international equivalent grades (ASTM TM-8, TB14140, etc.), facilitating global supply chain matching. It is suitable for stamping, bending, punching, and resistance welding, and can be seamlessly integrated into various temperature control assemblies.
Technical Specifications Table
|
Attribute
|
Value (Typical)
|
|---|---|
|
Alloy Grade
|
5J14140 (ASTM TM-8, FPA 721-140, TB14140)
|
|
Thickness
|
0.22mm (±0.005mm)
|
|
Width
|
4mm (±0.08mm)
|
|
Form
|
Coil (200m standard) / Custom cut-to-size
|
|
Specific Bending (20~100℃)
|
260~280×10⁻⁶/℃
|
|
Operating Temperature Range
|
-20℃ ~ +150℃ (continuous); -70℃ ~ +200℃ (ultimate)
|
|
Electrical Resistivity (20℃)
|
1.4~1.6μΩ·m
|
|
Tensile Strength
|
≥520MPa
|
|
Elongation
|
≥18%
|
|
Bonding Strength
|
≥150MPa
|
|
Density
|
~8.1g/cm³
|
|
Surface Finish
|
Bright pickled (standard)
|
Product Supply Specifications
|
Item
|
Specification
|
|---|---|
|
Supply Form
|
Coil (200m/roll); Custom cut-to-size sheets/strips available
|
|
Standard Dimensions
|
0.22mm (T) × 4mm (W)
|
|
Surface Treatment
|
Bright pickled; Electro-polished (optional)
|
|
Packaging
|
Anti-oxidation paper + plastic film + wooden reel; Vacuum-sealed for long-term storage
|
|
MOQ
|
50kg; Small batches (≥10kg) available for R&D
|
|
Customization
|
Thickness (0.08~2.0mm), width (2~50mm), coil length, surface finish
|
|
Processability
|
Stamping, bending, punching, resistance welding, laser cutting
|
Typical Application Scenarios
- Smart Home Temperature Control: Temperature-sensitive switches for air conditioners, refrigerators, water heaters, and electric kettles.
- Industrial Electrical Protection: Overload protection components for small motors, transformers, and power adapters.
- Precision Temperature Compensation: Compensation elements for electronic instruments, thermometers, and sensor modules.
- Automotive Electronics: Temperature control components for automotive air conditioning, battery management systems (BMS), and engine cooling systems.
- Small Appliance Components: Thermal fuses, temperature regulators for hair dryers, electric irons, and microwave ovens.
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