废钢铁的主要用途就是回炉炼钢,它是炼钢生产的重要原料;铸造时,炉料中也要配入废钢铁;生铁屑和氧化铁皮是化工产品和粉末冶金原料;有的可以用于生产轻工业产品和中小农具;有的还可以原物修复使用.总之，要本着合理使用，物尽其用的原则，充分、合理地利用废钢铁资源。
The main purpose of scrap iron and steel is to make steel in the furnace, which is an important raw material for steel-making production; when casting, scrap iron should also be mixed into the furnace charge; raw iron scraps and iron oxide scale are chemical products and powder metallurgy raw materials; some can be used to produce light industrial products and small and medium-sized agricultural implements; some can also be used to repair the original materials. In a word, they should be fully and reasonably used in accordance with the principle of reasonable use and full use of the materials. Waste iron and steel resources.