In daily life, we often confuse steel and iron as a concept and regard them as the same product. In fact, steel and iron are different products. So, what is the difference between iron and steel? Steel is a general term for iron-carbon alloys with a carbon content of 0.02% to 2.11% by mass.

Stainless steel is a steel alloy that contains a minimum chromium content of 10.5%. The chromium reacts with the oxygen in the air and forms a protective layer that makes stainless steel highly resistant to corrosion and rust. At the moment, there are over 150 varieties of stainless steel in the market.

Mild steel: carbon content less than 0.25%. because of its lower strength and hardness, it is called mild steel. Low carbon steel is easy to process, including forging, welding and cutting, so it is often used in the manufacture of chains, rivets, bolts, shafts and so on.