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Bimetal Strip

Presicion Alloy
April 10, 2025
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Brief: We tested it—see the highlights and what to expect in real operation. This video demonstrates the Huona Bimetal Strip Telcon 140/5J1480/TM-1 in action, showcasing its sensitive thermal bending response and stable mechanical performance across a wide temperature range from -70℃ to 350℃. Watch as we explore its applications in thermostats, temperature relays, and instrumentation, highlighting its precision manufacturing and reliable temperature control capabilities.
Related Product Features:
  • Features a two-layer composite structure with Ni22Cr3 active layer and Ni36 passive layer for sensitive thermal bending deformation.
  • Offers a wide operating temperature range from -70℃ to 350℃ with stable performance in both low and medium temperature environments.
  • Provides high bonding strength with interfacial shear strength ≥150MPa, preventing delamination during thermal cycling.
  • Delivers precise dimensional accuracy with thickness tolerance of ±0.005mm and width tolerance of ±0.1mm.
  • Exhibits excellent mechanical properties with Vickers hardness HV 180-220 and elongation ≥8% for easy forming.
  • Comes with a bright surface finish (Ra ≤0.2μm) that facilitates subsequent processes like electroplating and stamping.
  • Complies with international standards including ASTM TM1 and equivalent to grades like Kanthal 135 and Neomax BL-5.
  • Suitable for various applications including household thermostats, industrial relays, and automotive instrumentation.
Faqs:
  • What are the key applications of the Telcon 140/5J1480/TM-1 bimetal strip?
    This bimetal strip is widely used as the core sensing element in household and commercial thermostats, industrial temperature relays, automotive exhaust thermometers, and precision measuring instruments for temperature control, compensation, and indication.
  • How does the bimetal strip perform under extreme temperatures?
    It maintains stable performance across a wide temperature range from -70℃ to 350℃, with minimal bending coefficient decay (≤3%) even after 1000 hours of aging at 300℃.
  • What quality assurance measures are in place for this product?
    Huona implements a strict three-stage quality control system including raw material inspection with XRF analysis, process testing with ultrasonic flaw detection, and final inspection with laser thickness gauges and surface roughness testers.
  • What are the available supply forms and packaging options?
    The product is supplied in coils with inner diameter 150mm and outer diameter ≤600mm, or cut-to-length pieces ≥100mm, packaged with moisture-proof paper, PE film, and carton pallets to prevent oxidation.
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