Laizhou Yinheng Machinery Co.,Ltd

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Brake drum for Audi  made of meterial G3000 cast iron as buyer OEM

1. Must meet G3000 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: Pearlite with max.15 ferrite. Free from chill

4. Physical Properties

Tensile Strength: Min. 200 N/mm

Brinell Hardness: 190 ~ 230HB