Wuxi Wushi Machinery Factory , https://www.cnrollmill.com
1. Chemical Specification
Item
Standards
Brake Disc
C
3.1–3.4
3.3
Si
1.9–2.3
1.95
Mn
0.6–0.9
0.75
P
0.15 MAX
0.1
S
0.12 MAX
0.08
Item
Standards
Brake Disc
Tensile Strength
245 N/mm² MIN
268
Hardness HB
187–241 HB
230
Microstructure
A 85% MIN + B 5% MAX
A 92% MIN + B 4% MAX
Dynamic Balance (Disc)
260 g-cm MAX
200 g-cm
Dynamic Balance (Drum)
1300 g-cm MAX
500 g-cm
The brake disc (or rotor) is a key component of a vehicle's disc brake system, where the brake pads press against it to slow or stop the wheel. It is typically made from gray iron, a type of cast iron known for its durability and heat dissipation properties. The design of the disc can vary — some are solid, while others feature internal vanes or fins that help dissipate heat more effectively. Ventilated discs are commonly used on the front wheels of vehicles due to their higher braking demands. This design helps reduce thermal stress and ensures better performance under heavy use.
Our Advantages:
3. Professional Manufacturing: We use high-volume environmental foundry electric stoves and advanced production lines, with an output capacity of up to 5,000 tons per month.
Professional Manufacturing
4. Long Service Life & Quality Warranty: Our brake discs are designed for low noise operation and long-lasting performance. We offer a one-year warranty or 100,000 km, whichever comes first.
5. Strict Testing: We ensure dynamic balance testing for both discs and drums, guaranteeing stable performance during driving.
6. Material: Cast Iron; 7. Standard: HT-250 raw material, G3000 specifications; 8. Style: Solid or Vented Discs; 9. Packing: Neutral or Color Carton, Poly Wood Pallet.
10. Certifications: Short-term Export Credit Insurance, TS16949, ISO 9002; 11. Years of Export Experience: Familiar with various certifications and government CIQ regulations, and we provide necessary documents for customs clearance.
12. Short Lead Time: 20 days for a 20' container; 13. Competitive Pricing: Accept small orders with MOQ as low as 10–30 pcs.
14. Custom Production: We can develop and produce complex parts such as modified sizes, adjusted chemical formulas, surface treatments (DACROMET, ZINC PLATED, BLACK COLOR), and special features like drilled holes or scored patterns.
15. Quality Warranty: 1 year or 100,000 km; 16. Can accept drawings or samples for new product development.
Also available: Brake Drums. Welcome to inquire and visit us. Baiwang series car and truck brake discs and drums come in a wide range of models and styles, which is our main advantage.
We are a global trading company. Our products are popular in countries like the Czech Republic, Lithuania, Georgia, Australia, the Middle East, and Africa. We have established trade partnerships with many customers around the world who highly value our quality and service. We also have a professional R&D team to support innovation and customization.
Car Brake Disc / Rotor
OE NO:
Vehicle Type:
Detailed Features
2. Physical Properties