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What is the metal used for making crank shaft?

Crankshafts are typically made of forged or cast steel, or cast iron.

- Forged steel is the strongest and most durable material for crankshafts and is typically used in high-performance engines.

- Cast steel is less expensive than forged steel but is also less strong and durable.

- Cast iron is the least expensive material for crankshafts but is also the weakest and least durable.