PRODUCTS

Properties

• High carbon content (~2.5–4%)

• Graphite in flake form → makes it brittle but gives excellent machinability

• High compressive strength

• Low tensile strength

• Good wear resistance

• Excellent vibration damping (absorbs noise/shocks)

• Good thermal conductivity

• Poor impact resistance

Applications

Ideal for parts where stiffness and thermal stability are more important than tensile strength, such as:

Cylinder heads, Machine tool bases & frames, Pump housings, Pipes and pipe fittings, Gearboxes, Flywheels, Brake rotors/discs, etc.

Properties

• Carbon also high (~3–4%), but graphite in spheroidal (nodular) form

• Much stronger & tougher than grey iron

• High tensile strength (comparable to low carbon steel)

• Good ductility (can bend without breaking)

• High wear resistance

• Good fatigue resistance

• Better impact resistance

• Machinable, but less than grey iron

• Corrosion resistance (with alloying, e.g., Ni-resist types)

Applications

Crankshafts, Axle shafts, Gear wheels & gears, Pressure pipes (water, sewage), Hydraulic components, Truck and trailer suspension parts, Heavy-duty valves and fittings, Wind turbine hubs, Railroad wheels & couplings, etc.