Chemical elements of seamless steel pipe

1, the definition of carbon steel and steel in the five elements
Carbon is less than 2% of the iron carbon alloy called steel.
Five elements in the carbon steel is the main component in the chemical composition, namely C, Si, Mn, S, P (carbon, silicon, manganese, sulfur, phosphorus). The second is inevitably in the process of steelmaking with gas, including O, H, N (oxygen, hydrogen, nitrogen). In addition, use aluminum, silicon killed calm process, inevitably contains Al in molten steel, when Als (acid soluble) or 0. 020%, and the effect of fine grains
2, how the steel was tempered?
Steelmaking is the main task of the kind of quality requirements, in accordance with the steel-making, adjustment of carbon and alloy element content in the steel to within a prescribed scope, and the P, S, H, O, N content of impurities such as to allow Xu under limited.

If you would like to know more about seamless steel pipe,pls visit:hunan great steel pipe co.,ltd