Car Brake Disc / Rotor
OE NO:
Vehicle Type:
Detailed Features
1. Chemical Specification
2. Physical Properties
The brake disc, also known as a rotor, is a key component in a vehicle's disc brake system. It is the part that rotates with the wheel and is pressed against by the brake pads to create friction and slow down or stop the vehicle. Typically made from gray iron, which is a type of cast iron, the material offers good thermal conductivity and durability. The design of the disc can vary — some are solid, while others feature fins or vanes that help dissipate heat more efficiently. This ventilation is especially important for front discs, where higher braking forces and heat generation occur.
Our Advantages
- **Professional Manufacturing**: We use high-volume environmental foundry electric stoves and advanced production lines, with an output of up to 5,000 tons per month.
- **Long Service Life & Quality Warranty**: Our brake discs are designed for durability and come with a one-year or 100,000 km warranty.
- **Low Noise & Stability**: Each product undergoes strict dynamic balance testing to ensure smooth performance during driving.
- **Material & Standards**: Made from casting iron, following HT-250 raw material standards and G3000 specifications.
- **Packaging Options**: Available in neutral or color cartons, poly wood pallets.
- **Quick Lead Time**: 20 days for a 20' container.
- **Flexible Orders**: Accept small orders starting from 10–30 pieces.
- **Customization**: We can develop complex parts, adjust chemical formulas, apply special surface treatments (DACROMET, ZINC PLATED, BLACK COLOR), and drill holes or add patterns.
- **Certifications**: We hold TS16949 and ISO 9002 certificates, along with short-term export credit insurance.
- **Export Experience**: With many years of experience, we are familiar with various certifications and customs regulations.
- **R&D Team**: Our professional R&D team supports custom designs and new product development.
- **Global Reach**: Products are sold in countries like Czech Republic, Lithuania, Georgia, Australia, Middle East, and Africa.
We offer a wide range of car and truck brake discs and drums, with multiple models and types. As a global trading company, our products have been well-received by customers worldwide. We welcome your inquiries and look forward to working with you.
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 N/mm² |
Hardness HB | 187–241 HB | 230 HB |
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 |

Metal Enclosure,Steel Perforated Plate,Steel Plate Sheet Metal,Metal Mesh Plate
Suzhou Gold ant Precision Sheet Metal Co.,Ltd , https://www.jmysheetmetal.com