High-performance thermostat bimetallic strip designed for temperature control applications in automatic control devices and instrumentation systems.

5J1580 / TANKII 155 / ТБ 1523

• Exhaust thermometers and thermostats
• Voltage regulators and temperature relays
• Automatic protection switching systems
• Diaphragm meters and temperature indicators
• Temperature control and compensation components
• Current limiting devices

• Bending deformation with temperature changes generates precise moment
• Multi-layer metal composite construction
• Active layer (high expansion) and passive layer (low expansion)
• Reliable temperature-dependent shape change response

Standard: GB/T 4461-1992

• Density: 8.1 g/cm³
• Allowable Temperature Range: -70°C to 350°C
• Linear Temperature Range: -20°C to 180°C
• Electrical Resistivity: 0.8 ±5% μΩ·m (20°C)
• Thermal Conductivity: 12 W/m·°C
• Bending Coefficient: 15 × 10⁻⁶ °C⁻¹ (20-135°C)
• Elastic Modulus: 147-177 GPa

Bimetallic thermometers using this strip provide reliable low-temperature field measurement instrumentation, capable of measuring liquid vapor and gas temperatures from -80°C to +500°C in various production processes.