Break drun are made of G3000.our pruducts were sold to American.
Their surface is coated by black paint.
Their dimenssion is from 6" to 16"
Specifications
1) brake rotor,casting iron+machining, as parts for cars
2) Hardness: HB187 – 241
3) 100% crucial dimension inspection
4) Length of graphite: According to ASTM A247 4 grade - 5 grade
5) Pearlite: More than 90% .
6) Tensile strength: 210Mpa
7) Statement of graphite: 90% of the graphite is lamella, with a remainder of no more than 10%, lamella graphite is mostly is type "A"