Huona (Shanghai) New Material Co., Ltd.
                                                                                                           
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Huona 5J1370 Thermostatic Bimetallic Alloy 1370 0.12*70mm

Price Negotiable
Price: Negotiable
MOQ: 10KG
Delivery Time: 5-21 days
Brand: Huona
Product Description
5J1370 Thermostatic Bimetallic Alloy 1370 0.12*70mm
5J1370 (also known as Alloy 1370 / Type 1370 thermostatic bimetallic strip) from Huona New Material is a precision composite material formed by metallurgically bonding two metal layers with distinct thermal expansion coefficients. It produces predictable, reversible bending deformation in response to temperature changes, making it ideal for sensitive low-temperature thermal actuation, precise temperature control, and light-load overheat protection devices.
Standard Designations & Core Specifications
  • Alloy Grade: Chinese Grade: 5J1370 | International Equivalent: Alloy 1370 / Type 1370 (ASTM/ANSI standard)
  • Typical Dimensions: Thickness: 0.12mm (customizable: 0.05-2.0mm) | Width: 70mm (customizable: 10-300mm) | Form: Coil (standard: 100m/roll)
  • Core Material Composition: High-expansion layer: Fe-Ni-Mn alloy | Low-expansion layer: Fe-Ni alloy (Invar-type)
  • Key Thermal Performance: Curvature temperature coefficient (α): ~7.0×10⁻⁶ /℃ (20-130℃) | Operating temperature range: -80℃ ~ 180℃ (continuous)
  • 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
Sensitive Low-Temperature Response
  • Moderate Curvature Sensitivity: Curvature temperature coefficient of ~7.0×10⁻⁶ /℃, ideal for low-temperature applications requiring stable, gentle actuation
  • Reversible Deformation: Fully reversible thermal cycling without permanent deformation or fatigue, ensuring long-term reliability in cold environments
Excellent Mechanical Properties
  • High Strength & Formability: Tensile strength ≥500MPa, elongation ≥20%, enabling complex stamping, bending, and punching operations
  • Good Fatigue Resistance: Withstands repeated thermal cycling without cracking or performance degradation
Uniform Quality & Consistency
  • Precision Rolling: Tight thickness and width tolerances ensure uniform thermal response across the entire strip
  • Strong Interlayer Bonding: Metallurgical bonding prevents delamination under thermal and mechanical stress
Versatile Processability
  • Easy Forming: Compatible with stamping, bending, punching, and riveting to produce complex bimetallic elements
  • Weldability: Suitable for resistance welding and soldering, enabling seamless integration into components
Reliable Environmental Resistance
  • Corrosion Resistance: Good resistance to atmospheric corrosion and mild chemicals
  • Wide Temperature Stability: Maintains consistent performance across -80℃ to 180℃, suitable for cryogenic environments
Technical Specifications
Attribute Value (Typical)
Alloy Grade 5J1370 (Alloy 1370 / Type 1370)
Thickness 0.12mm (±0.005mm)
Width 70mm (±0.1mm)
Form Coil (100m standard) / Cut-to-size sheets
Curvature Temperature Coefficient ~7.0×10⁻⁶ /℃ (20-130℃)
Operating Temperature -80℃ ~ 180℃ (continuous)
Tensile Strength ≥500MPa
Elongation ≥20%
Density ~8.0g/cm³
Surface Finish Bright/light oxide (standard)
Product Specifications
Item Specification
Supply Form Coil (100m/roll); cut-to-size sheets available
Thickness Range 0.05-2.0mm
Width Range 10-300mm
Surface Treatment Bright finish / pickled (optional)
Packaging Anti-corrosion paper + wooden reel (prevents oxidation and damage)
MOQ 50kg, small batches available for R&D
Customization Thickness/width/length; surface finish; thermal performance grade
Processability Stamping, bending, punching, riveting, resistance welding, soldering
Typical Application Scenarios
  • Low-Temperature Thermostats: Refrigerators, freezers, cold storage, and cryogenic equipment temperature control
  • Light-Load Overheat Protection: Small electronic devices, battery packs, and precision instrument protection
  • Thermal Actuators: Refrigeration valve actuators, cold chain monitoring devices, and low-temperature safety switches
  • Measuring Instruments: Bimetallic thermometers and low-temperature temperature indicators
  • Consumer Electronics: Portable cold storage devices, medical refrigerators, and small appliance safety controls

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Huona (Shanghai) New Material Co., Ltd.
Location 1900 Mudanjiang Road, Baoshan District, 201999, Shanghai, China
Contact Person Roy

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