Difference Between Cast Iron and Steel

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 Difference Between Cast Iron and Steel


Cast iron and steel are both made from iron and carbon but have different properties and uses. Here's a simple comparison:



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1. Carbon Content


Cast Iron: Has more carbon, making it harder but brittle (can break easily).


Steel: Has less carbon, making it stronger and more flexible.






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2. Structure


Cast Iron: Contains graphite, which makes it easier to cut but weaker in strength.


Steel: Has a uniform structure, giving it more strength and toughness.






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3. Strength


Cast Iron: Good for handling heavy pressure but breaks under bending or pulling.


Steel: Can handle bending, pulling, and heavy pressure.






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4. Heat Resistance


Cast Iron: Works well in hot conditions and resists heat.


Steel: Handles higher temperatures and spreads heat better.






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5. Rust Protection


Cast Iron: Resists rust to some extent due to its carbon and silicon.


Steel: Can resist rust better if mixed with chromium or nickel.






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6. Machining and Welding


Cast Iron: Easy to cut but hard to weld.


Steel: Easy to cut and weld, making it great for building things.






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7. Uses


Cast Iron: Used for heavy-duty, static items like pipes and machine parts.


Steel: Used in construction, vehicles, and high-stress environments.






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8. Cost


Cast Iron: Cheaper because it’s easier to make.


Steel: Costs more but is stronger and more useful.






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Summary:


Cast Iron: Best for heavy, wear-resistant items but not good for bending or welding.


Steel: Strong, flexible, and good for structures and dynamic uses.


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