0.18*12mm RL5J20110 Thermostatic Bimetallic StripFor Thermal Actuation And Control Applications
Price:
Negotiable
MOQ:
10KG
Delivery Time:
5-21 days
Brand:
Huona
Product Description
RL5J20110 Thermostatic Bimetallic Strip
Product Overview
RL5J20110 thermostatic bimetallic strip is a high-sensitivity, high-resistivity precision composite material developed for demanding thermal actuation and control applications. It is manufactured by vacuum diffusion bonding of a high-expansion manganese-nickel-copper alloy layer and a low-expansion nickel-iron alloy layer, followed by precision cold rolling and stress-relief annealing. This material delivers rapid thermal response, stable electrical resistivity, and excellent mechanical durability, making it ideal for applications requiring precise and reliable temperature-driven motion.
Standard Designations & Core Specifications
- Alloy Grade: RL5J20110 (High-Sensitivity, High-Resistivity Thermostatic Bimetal)
- Equivalent International Grades:
- USA: ASTM TM-2 / FPA 7500
- Germany: TB20110
- Japan: TMB-3
- Typical Dimensions:
- Thickness: 0.18mm (customizable: 0.08–1.0mm)
- Width: 12mm (customizable: 5–50mm)
- Form: Coil (standard length: 200m/roll; custom cut lengths available)
- Tolerance: Thickness ±0.004mm, Width ±0.08mm
- Key Thermal & Electrical Performance:
- Specific Bending (20–100℃): ≥290×10⁻⁶/℃
- Linear Temperature Range: -20℃ ~ +150℃
- Ultimate Service Temperature: -70℃ ~ +200℃
- Electrical Resistivity (20℃): 1.13±5% μΩ·m
- Compliant Standards: GB/T 4461-2016, ASTM B388, RoHS 2.0, REACH
- Manufacturer: Huona (Shanghai) New Material Co., Ltd., certified to ISO 9001 and IATF 16949
Key Core Advantages
1. Ultra-High Thermal Sensitivity
RL5J20110 exhibits exceptional thermal response, with a specific bending coefficient ≥290×10⁻⁶/℃. This allows for large, measurable bending displacement in response to small temperature changes, enabling the design of compact, highly responsive thermal switches and control elements.
2. Integrated High Electrical Resistivity
With a stable resistivity of 1.13 μΩ·m, this grade eliminates the need for separate resistive components in self-heating thermal switches and overload protectors. It combines temperature sensing and heating functions in a single element, simplifying circuit design and reducing component count.
3. Superior Structural Integrity
The vacuum diffusion bonding process ensures metallurgical fusion between the high and low expansion layers, resulting in exceptional interlayer bonding strength (≥150MPa). This prevents delamination even after thousands of thermal cycles, ensuring long-term reliability in dynamic applications.
4. Precision Formability & Consistency
Tight dimensional tolerances and a uniform microstructure enable precise stamping, bending, and punching into complex geometries. The material maintains consistent performance across the entire coil, ensuring batch-to-batch uniformity for high-volume production.
5. Excellent Environmental Stability
RL5J20110 offers good resistance to atmospheric corrosion and thermal fatigue. It performs reliably in both indoor and mildly corrosive industrial environments, making it suitable for use in home appliances, automotive systems, and industrial controls.
Technical Specifications Table
| Attribute | Value (Typical) |
|---|---|
| Alloy Grade | RL5J20110 |
| Thickness | 0.18mm (±0.004mm) |
| Width | 12mm (±0.08mm) |
| Form | Coil (200m standard) / Custom cut lengths |
| Specific Bending (20–100℃) | ≥290×10⁻⁶/℃ |
| Operating Temperature Range | -20℃ ~ +150℃ (continuous) |
| Ultimate Service Temperature | -70℃ ~ +200℃ |
| Electrical Resistivity (20℃) | 1.13±5% μΩ·m |
| Tensile Strength | ≥480MPa |
| Elongation | ≥20% |
| Density | ~7.7 g/cm³ |
| Surface Finish | Bright pickled (standard) |
Product Supply Specifications
| Item | Specification |
|---|---|
| Supply Form | Coil (200m/roll); custom cut-to-size strips available |
| Standard Dimensions | 0.18mm (T) × 12mm (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, width, coil length, surface finish, and annealing condition |
| Processability | Stamping, bending, punching, resistance welding, laser cutting |
Typical Application Scenarios
- Self-Heating Thermal Switches: Integrated thermal control elements for water heaters, electric kettles, and HVAC systems.
- Motor Overload Protectors: Current-sensitive thermal cutouts for small motors, transformers, and power adapters.
- Automotive Electronics: Battery management system (BMS) thermal sensors and engine cooling system components.
- Precision Instrumentation: Temperature compensation elements for meters, gauges, and sensor modules.
- Small Appliance Safety: Thermal fuses and regulators for hair dryers, electric irons, and microwave ovens.
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Company
Huona (Shanghai) New Material Co., Ltd.
Location
1900 Mudanjiang Road, Baoshan District, 201999, Shanghai, China
Contact Person
Roy