Car Brake Disc / Rotor
OE NO:
Vehicle Type:
Detailed Features
1. Chemical Specification
2. Physical Properties

The brake disc (or rotor) is a crucial component of the disc brake system, which works by applying pressure to the brake pads against the rotating disc. It is typically made of gray iron, a type of cast iron known for its durability and heat dissipation properties. The design of the brake disc can vary—some are solid, while others feature ventilation channels or vanes to help dissipate heat more efficiently. Ventilated discs are commonly used in high-performance or heavy-duty vehicles, especially on the front wheels where braking forces are greater. This design helps maintain optimal performance even under extreme conditions. Our Advantages - **Professional Manufacturing**: We have advanced environmental foundry electric stoves and production lines, with an output capacity of up to 5,000 tons per month. - **Long Service Life & Quality Warranty**: Our brake discs are designed for durability and low noise, with a warranty period of 1 year or 100,000 kilometers. - **Strict Testing**: All discs and drums undergo rigorous dynamic balance testing to ensure stability during driving. - **Material & Standards**: Made from casting iron, following HT-250 raw material and G3000 standards. Available in solid or vented styles. - **Packaging Options**: Neutral or colored cartons with poly wood pallets. - **Export Experience**: With many years of export experience, we are familiar with various certifications and government regulations. - **Short Lead Time**: 20 days for a 20' container. - **Flexible Orders**: Accept small quantities, with MOQ as low as 10–30 pieces. - **Customization**: Capable of producing complex parts, including size adjustments, chemical formula changes, surface treatments (DACROMET, ZINC PLATED, BLACK COLOR), and special drilling or scoring. - **Certifications**: Compliant with TS16949 and ISO 9002. - **Global Reach**: Products are sold in countries such as Czech Republic, Lithuania, Georgia, Australia, the Middle East, and Africa. - **R&D Team**: We have a professional R&D team to support custom designs and new product development. We offer car and truck brake discs and drums in a wide range of models and sizes. Whether you need standard parts or customized solutions, Baiwang is your reliable partner. Welcome to inquire and visit us!
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 crucial component of the disc brake system, which works by applying pressure to the brake pads against the rotating disc. It is typically made of gray iron, a type of cast iron known for its durability and heat dissipation properties. The design of the brake disc can vary—some are solid, while others feature ventilation channels or vanes to help dissipate heat more efficiently. Ventilated discs are commonly used in high-performance or heavy-duty vehicles, especially on the front wheels where braking forces are greater. This design helps maintain optimal performance even under extreme conditions. Our Advantages - **Professional Manufacturing**: We have advanced environmental foundry electric stoves and production lines, with an output capacity of up to 5,000 tons per month. - **Long Service Life & Quality Warranty**: Our brake discs are designed for durability and low noise, with a warranty period of 1 year or 100,000 kilometers. - **Strict Testing**: All discs and drums undergo rigorous dynamic balance testing to ensure stability during driving. - **Material & Standards**: Made from casting iron, following HT-250 raw material and G3000 standards. Available in solid or vented styles. - **Packaging Options**: Neutral or colored cartons with poly wood pallets. - **Export Experience**: With many years of export experience, we are familiar with various certifications and government regulations. - **Short Lead Time**: 20 days for a 20' container. - **Flexible Orders**: Accept small quantities, with MOQ as low as 10–30 pieces. - **Customization**: Capable of producing complex parts, including size adjustments, chemical formula changes, surface treatments (DACROMET, ZINC PLATED, BLACK COLOR), and special drilling or scoring. - **Certifications**: Compliant with TS16949 and ISO 9002. - **Global Reach**: Products are sold in countries such as Czech Republic, Lithuania, Georgia, Australia, the Middle East, and Africa. - **R&D Team**: We have a professional R&D team to support custom designs and new product development. We offer car and truck brake discs and drums in a wide range of models and sizes. Whether you need standard parts or customized solutions, Baiwang is your reliable partner. Welcome to inquire and visit us!
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