Introduction to Car Brake Pads Semi-Metallic Mixture
Semi-metallic brake pads are a widely used brake pads mixture in automotive braking systems, combining metallic fibers (30%–65% content) with organic binders and friction modifiers. This brake pads formula balances cost-effectiveness, durability, and heat dissipation, making it a popular choice for both standard and high-performance vehicles.
Technical Parameters
Key specifications of a typical semi-metallic brake pads friction material are summarized below:
| Parameter | Value/Range |
|---|---|
| Operating Temperature Range | -30°C to 600°C |
| Friction Coefficient (μ) | 0.35–0.42 (dry/wet conditions) |
| Density | 2.5–2.8 g/cm³ |
| Wear Rate | ≤0.20 mm³/(N·m) |
| Compressive Strength | ≥40 MPa |
| Noise Level | <75 dB (tested at 50 km/h) |
| Packaging Specification | 10 pairs/box, moisture-proof bags |
Key Advantages
- Cost-Effective Performance
- The brake pads mixes incorporate steel, copper, or iron fibers, providing strong braking force at a lower cost compared to ceramic or organic alternatives.
- Ideal for heavy-duty applications like trucks and performance cars due to enhanced thermal stability.
- Superior Heat Dissipation
- Metallic components improve thermal conductivity, reducing brake fade during prolonged or high-intensity braking.
- Durability
- Higher metallic content extends pad lifespan, especially in urban driving with frequent stops.
- Compatibility
- Suitable for most disc brake systems, including older vehicles designed for metallic friction materials.
Note: Semi-metallic pads may generate more brake dust and noise compared to ceramic options, and their abrasive nature can accelerate rotor wear.
Storage and Packaging
- Storage Guidelines:
- Store in dry, ventilated areas at 10°C–35°C to prevent resin degradation.
- Avoid humidity above 65% to minimize oxidation of metallic components.
- Packaging:
- Individually wrapped in anti-corrosion aluminum foil bags.
- Bulk shipments use reinforced cardboard boxes with foam inserts to prevent mechanical damage.
Applications
Widely adopted in commercial vehicles, SUVs, and high-torque applications requiring robust braking performance. The semi-metallic brake pads formula remains a practical choice for drivers prioritizing affordability and reliability over ultra-low noise or rotor longevity.
By leveraging metallic fibers and optimized brake pads friction material ratios, this mixture continues to dominate markets where cost-performance balance is critical.