What kind of iron does it have? What is iron? What is iron?
The difference between steel and iron, pig iron and steel are the main component of iron, the main difference between the two is the difference in carbon content, pig iron generally contains carbon 2-4.3%, steel containing carbon 0.03-2%.
Pure iron can be obtained by reduction of pure iron with hydrogen. Iron containing more than 2.11% of carbon is called pig iron (or cast iron). The fusion of iron containing less than 0.2% carbon steel or wrought iron called. An alloy of iron containing carbon between 0.2-2.11% is called steel. Iron hard, but brittle; elastic steel; wrought iron easy machining, but softer than steel. Pig iron carbon content of about 4%, pig iron for steelmaking, is to reduce the carbon content of pig iron is below 2.11%, the elements of silicon, manganese, molybdenum, vanadium, nickel and chromium in the required range, as well as sulfur and phosphorus impurities.
The difference between the categories of iron and steel of carbon / impurities (such as sulfur and phosphorus) mechanical properties of 2-4.3 cast iron machining hard brittle cast forged steel 0.03-2 can not be less hard and tough, elastic cast steel is can exercise at high temperature, the oxidizer (such as oxygen) the iron contained in the too much carbon and other harmful impurities (such as sulfur and phosphorus) removal, provisions of the scope of them reach the steel content.
