Definition of steel
Steel is a material such as steel ingots, billets, and […]
Steel is a material such as steel ingots, billets, and the like that are formed into various shapes, sizes, and properties required by daily processing.
Steel is an iron-carbon alloy with a carbon content between 0.04% and 2.3%. (In theory, the steel with a carbon content of less than 2.11% is generally referred to as steel.) In order to ensure its toughness and plasticity, the carbon content generally does not exceed 1.7%. In addition to iron and carbon, the main elements of steel include silicon, manganese, sulfur, and phosphorus.
Classified by quality
(1) Ordinary steel (P≤0.045%, S≤0.050%)
(2) High-quality steel (P and S are ≤0.035%)
(3) High-quality steel (P≤0.035%, S≤0.030%
Classified by chemical composition
(1) Carbon steel: a. low carbon steel (C ≤ 0.25%); b. medium carbon steel (C ≤ 0.25 ~ 0.60%); c. high carbon steel (0.60% ≤ C ≤ 2.11%).
(2) alloy steel: a. low alloy steel (total content of alloying elements ≤ 5%); b. medium alloy steel (total content of alloying elements is 5~10%); c. high alloy steel (total content of alloying elements > 10 %).