TB200/10 bimetallic strip is a composite material formed by bonding two metal layers with distinct thermal expansion coefficients: a high-expansion layer (Cu-Zn alloy) and a low-expansion layer (Fe-Ni alloy). The "200" denotes its maximum continuous operating temperature (200°C), while "10" refers to its thermal deflection coefficient (10×10⁻⁶/°C in the 20-100°C range). This strip delivers stable, repeatable bending behavior under temperature changes, making it suitable for medium-precision thermal control devices and safety switches.
- Industry Classification: Conforms to DIN 17155 for bimetallic strip performance
- Material Code: TB200/10 (temperature class/deflection coefficient)
- Equivalent Grades: Similar to Type B in GB/T 4461 and Class 3 in ASTM F2144
- Controlled Deflection: 1.0mm bending per 100mm length at 100°C (20°C reference)
- Temperature Stability: Continuous operation at -40°C to 200°C; short-term up to 220°C
- Mechanical Durability: Withstands ≥10,000 thermal cycles without fatigue failure
- Cost-Effective: Balances performance and affordability for general industrial use
- Formability: Easy to cut, bend, and stamp into custom shapes for diverse applications
| Attribute |
Value |
| Total Thickness |
0.15mm - 1.5mm (tolerance: ±0.01mm) |
| Width Range |
5mm - 100mm (tolerance: ±0.05mm) |
| Layer Thickness Ratio |
1:1 (high-expansion : low-expansion) |
| Tensile Strength |
420-500MPa |
| Elongation |
≥15% |
| Thermal Conductivity |
55W/(m·K) |
| Electrical Resistivity |
0.95Ω·mm²/m (20°C) |
| Item |
Specification |
| Surface Finish |
Annealed (Ra ≤1.0μm) |
| Length per Roll |
50m, 100m, 200m (on 200mm plastic spools) |
| Bond Strength |
≥120MPa (layer adhesion) |
| Flatness |
≤0.1mm/m |
| Packaging |
Plastic film wrapping + moisture-proof cartons |
- Small household appliance thermostats (irons, toasters)
- Battery overheat protection devices
- Low-voltage switchgear
- Automotive cabin temperature controls
- Simple industrial temperature triggers
We provide custom slitting, cutting, and forming services for TB200/10 strips. Free samples (100mm×20mm) and thermal cycle test reports are available upon request, with bulk order discounts applicable.
