06/05/2022
Iron can only be turned into steel after hundreds of smelting. With the progress of the times, the quality of smelted steel can be roughly divided into these three types.👍
⑴ Ordinary steel There are many impurity elements in steel, the sulfur content ws is generally ≤ 0.05%, and the phosphorus content wP ≤ 0.045%, such as carbon structural steel, low-alloy structural steel, and so on.🧐
(2) There are few impurity elements in high-quality steel, and the content of sulfur and phosphorus is generally less than or equal to 0.04%, such as high-quality carbon structural steel, alloy structural steel, carbon tool steel and alloy tool steel, spring steel, bearing steel, etc. .🧐
(3) High-grade high-quality steel The steel contains very few impurity elements, the sulfur content ws is generally ≤ 0.03%, and the phosphorus content wP ≤ 0.035%, such as alloy structural steel and tool steel. High-quality high-quality steel is usually identified by adding the symbol "A" or the Chinese character "高" after the steel number.🧐
We can quickly supply you with all kinds of steel.🤝🤝🤝
