Carbon content is the main difference between steel and stainless steel. Steel contains more carbon than stainless steel, which makes it harder and stronger. However, stainless steel is more corrosion-resistant and has a higher melting point.
Other elements can be added to steel and stainless steel to change their properties. For example, adding chromium to steel makes it stainless, while adding nickel makes it more ductile and corrosion-resistant.
Here is a table summarizing the key property differences between steel and stainless steel:
| Property | Steel | Stainless Steel |
|---|---|---|
| Carbon content | >0.2% | <0.15% |
| Hardness | Harder | Softer |
| Strength | Stronger | Weaker |
| Corrosion resistance | Less corrosion-resistant | More corrosion-resistant |
| Melting point | Lower | Higher |
Stainless steel is a better choice for applications where corrosion resistance is important, such as in food processing, chemical processing, and marine environments. Steel is a better choice for applications where strength is important, such as in construction and automotive parts.
