Truck Brake Disc & Drum.pdf

The brake disc rotors & drums measure up to the quality standard of SAE J431- G3000, manufacture is operated under strict quality control system of ISO9002 &QS9000 & VDA6. 1, 100% inspection for material and structure and dimension and dynamic balance and trace. Mechanical property: Tensile strength: §b≥201Mpa. Hardness: HB187 – 241 Statement of graphite: 90% of the graphite is Lamella, the remainder are no more than 10%. The lamella graphite mostly is type “A” Length of graphite: According to ASTM A247 4grade – 5grade Pearlite: More than 90%