This type of brake block is a composite‑material brake insert designed for high-velocity railway applications (≤ 120 km/h) with superior friction stability.
· Function & Use: K-type composite brake block directly contacts wheel tread to produce braking torque via high-friction composite materials; suitable for locomotives, wagons, and passenger cars.
· Working Principle: High-density resin-rubber matrix with graphite and steel fibers ensures consistent friction and heat resistance during repeated braking cycles.
· Enterprise Strength: Custom manufacturing according to samples/drawings, certified quality control, one-year warranty, available inspection by domestic or designated agencies.
Attribute | Value |
Material | Composite friction body + steel backing |
Friction Grade | High Friction (K-type) |
Density | ≤ ±5% variation (g/cm³) |
Hardness | 55–100 HRR |
Impact Strength | ≥ 1.8 kJ/m² |
Compression Strength | ≥ 25 MPa |
Compression Modulus | ≤ 1.5 × 10³ MPa |
Train Max Speed | ≤ 120 km/h |
Axle Load Support | ≤ 22.5 t (per UIC usage guidance) |
Standards | UIC 541-4, AAR M-926, TB/T 2403-2010 |
Warranty | 1 Year |
· High-Energy Braking Performance
· Stable Friction Coefficient Across Speed Range
· Low Heat Fade & Noise Reduction
· Durable for 10,000+ km service life typical
