Exploring the Advantages of a G3000 Cast Iron Brake Rotor

What is a G3000 cast iron brake rotor made of

Cast iron brake rotors are made from gray iron. Gray iron has a graphitic construction, which gives it its gray color. The raw materials contain iron, carbon, graphite, silica, and pearlite. However, G3000 is a brake rotor formula that contains a higher percentage of carbon to give it added strength and sound damping qualities.

G3000 brake rotor raw materials

A G3000-qualified brake rotor contains certain raw materials that comply with industry standards. It is a high-carbon mix containing:

• Carbon 3.10%-3.40%
• Silicon 1.90%-2.30%
• Manganese 0.60%-0.90%
• Sulfur Max 0.15%
• Phosphorus Max 0.15%,
For a total Carbon equivalent of 3.9%-4.15%.

The graphitic microstructure is 2.5%—4.0% Carbon and 1%—3% Silicon. Silicone acts as a graphite stabilizing element, enabling the alloy to produce graphite instead of iron carbides.

G3000 brake rotor properties

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