Flat steel refers to steel with width of 12-300mm, thickness of 3-60mm, rectangular section and slightly blunt edge. Flat steel can be finished steel, or it can be used as blank of welded pipe and sheet of stacking plate. Main uses: flat steel can be used as finished products to make iron hoops, tools and mechanical parts, and can be used as building frame structure and escalator in buildings.
Spring flat steel is produced by converter smelting process. Compared with the prior art, it has the following advantages and positive effects:
1. the converter smelting flat steel mainly uses molten iron as raw material. There are few harmful elements in molten iron, and the quality of flat steel produced is guaranteed.
2. due to high output and low power consumption, the cost per ton is lower than that of electric furnace.
3. the molten steel is directly cast into a small billet, which saves the billet process and reduces the cost.
4. the continuous casting slab has high sizing rate, which can ensure the sizing rate of flat steel and meet the needs of users.