cast iron Brake Disc Brake Disc Rotor
for BENZ cast iron brake disc Quality Standard---GG20 Material Requirements 1
) Must meet Grade GG20 for gray iron castings. 2
) Chemical Composition (Percent) * Total Carbon: 3
.0 - 3.50% * Silicon: 1.90 - 2.30% * Manganese: 0.60 - 0.90% * Phosphorus: 0.12% Max. * Sulfur: 0.10% Max. 3) Microstructure: Graphite Structure- Predominantly type A, size 3-5. Matrix- Pearlitic with max. 15 ferrite. Free from chill 4
) Physical Properties: Tensile Strength- Min. 200 N/mm Brinell Hardness- 190 - 230
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Product Categories : Brake Disc And Drum For Mercedes-Benz