Steel used in pharma

Steel is a mixture of several metals (this is called an alloy) but most of it is iron. Steel is harder and stronger than iron. 

Steels are often iron alloys with between 0.02% and 1.7% percent carbon by weight. Alloys with more carbon than this are known as cast iron.

Steelmaking is the process for producing steel from iron ore and scrap. In steelmaking, impurities such as nitrogen, silicon, phosphorus, sulphur and excess carbon are removed from the raw iron, and alloying elements such as manganese, nickel, chromium, molybdenum, boron, titanium, vanadium, tungsten, cobalt, and niobium are added to produce different grades of steel.

Increasing carbon content increases hardness and strength and improves hardenability in steel alloy. But carbon also increases brittleness and reduces weld ability. 

Most steel contains less than 0.35 percent carbon.

Rust is an iron oxide, a usually red oxide formed by the redox reaction of iron and oxygen in the presence of water or air moisture. … Other forms of rust exist, like the result of reactions between iron and chloride in an environment deprived of oxygen.

Do you have any query on this Topic ? Post your query here !