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TB 20110 High Sensitivity Thermostatic Bimetal Strip for Thermal Protector Relay 0.10-2.50mm

Place of Origin Shanghai, China
Brand Name Huona
Certification ISO 9001:2015, RoHS
Model Number TB 20110
Minimum Order Quantity 10KG
Price Negotiable
Packaging Details Wooden case or plywood pallet with moisture-proof wrapping, custom packaging available upon request
Delivery Time 7-15 working days after order confirmation
Payment Terms T/T,L/C,Western Union
Supply Ability 20000 Kilograms per Month
Product Details
Grade TB 20110 Specific Thermal Deflection (20-130°C) 20.0 ± 5% × 10⁻⁶/°C
Resistivity (20°C) 110 ± 5% μΩ·cm Elastic Modulus (E) ≥ 130 GPa
Density 7.8 G/cm³ Linear Temperature Range -20°C To 200°C
Max Operating Temperature 350°C Hardness (HV) 280-350 (High Expansion Side)
Thickness Range 0.10 Mm - 2.50 Mm Width Range 5 Mm - 300 Mm
Surface Condition Bright / Polished / Pickled Form Available Strip, Coil, Sheet, Disc, Custom Stamped Parts
High Expansion Layer Mn-based Alloy (Mn75Ni15Cu10) Low Expansion Layer Ni36Fe Invar Alloy
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High Sensitivity Thermal Bimetal Strip

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Precision Temperature Control Bimetal

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Motor Protector Thermostat Metal

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Product Description

TB 20110 High Sensitivity Thermostatic Bimetal Strip

The TB 20110 thermostatic bimetal strip is a high-sensitivity composite material engineered by Huona for precision temperature sensing and control applications. It consists of a high-expansion manganese-based alloy layer (Mn75Ni15Cu10) metallurgically bonded to a low-expansion Ni36Fe Invar alloy layer. When subjected to temperature changes, the differential thermal expansion between the two layers causes the strip to bend predictably and repeatably, making it an ideal actuating element for thermal protection devices.

Key Features

  • High Sensitivity: Specific thermal deflection of 20.0 * 10⁻⁶/°C ensures rapid and precise response to temperature fluctuations.
  • Excellent Repeatability: Consistent deflection performance across thousands of thermal cycles with minimal hysteresis.
  • Wide Working Range: Linear temperature range from -20°C to 200°C, with a maximum operating temperature up to 350°C.
  • Superior Bond Integrity: Cold-roll bonding technology ensures uniform metallurgical fusion between layers, eliminating delamination risk.
  • Customizable Dimensions: Available in thicknesses from 0.10 mm to 2.50 mm and widths from 5 mm to 300 mm.
  • Versatile Form Factors: Supplied as continuous strip, coil, precision-cut sheet, or custom stamped parts per your drawings.
  • Consistent Electrical Properties: Resistivity of 110 μΩ·cm ± 5% ensures stable electrical performance in resistive heating applications.

Technical Specifications

Parameter Value
Grade TB 20110
Specific Thermal Deflection (20-130°C) 20.0 ± 5% * 10⁻⁶/°C
Resistivity (20°C) 110 ± 5% μΩ·cm
Elastic Modulus (E) ≥ 130 GPa
Density 7.8 g/cm³
Linear Temperature Range -20°C to 200°C
Max Operating Temperature 350°C
Hardness (HV) - High Expansion Side 280 - 350
Thickness Range 0.10 mm - 2.50 mm
Width Range 5 mm - 300 mm
High Expansion Layer Mn75Ni15Cu10 (Mn-based Alloy)
Low Expansion Layer Ni36Fe (Invar Alloy)
Surface Condition Bright / Polished / Pickled
Form Available Strip, Coil, Sheet, Disc, Custom Stamped Parts

Typical Applications

  • Motor overload protection relays
  • Thermal circuit breakers (MCB, MCCB)
  • Precision thermostats and temperature controllers
  • Automotive engine temperature sensors
  • Appliance thermal cut-offs (rice cookers, irons, water heaters)
  • Industrial process temperature monitoring
  • HVAC temperature regulation components

Why Choose Huona TB 20110?

Huona is an ISO 9001:2015 certified manufacturer specializing in high-performance thermostatic bimetal materials. Our TB 20110 strip is produced under strict quality control with full traceability from raw material to finished product. Each batch is tested for thermal deflection, resistivity, and bond integrity. We offer competitive pricing, flexible MOQ starting from 50 kg, and comprehensive technical support including custom stamping and forming services. Contact us today for free samples and a tailored quotation.