How is stainless steel different from pure iron?
Some differences between stainless steel and pure iron are given below:
Property | Stainless Steel (an Alloy of iron) | Pure Iron |
Composition | Iron (Fe) + chromium (Cr)+ nickel (Ni) + carbon (C) | Mostly iron (Fe) with very few impurities |
Strength | Stronger and harder | Relatively soft and malleable |
Corrosive resistance | Highly resistant due to chromium forming a protective oxide layer | Rusts easily when exposed to moisture and oxygen |
Cost | More expensive due to alloying elements | Cheaper compared to stainless steel |