High temperature oxidation of pure iron and carbon steel in air or oxygen

  Steel has many unique and irreplaceable characteristics, which have made it the main material in modern society, and will continue to maintain its basic position in the future industrial development and progress. In 2000, the world consumed about 758 million tons of steel products, of which 49% were flat-rolled thin steel plates and medium plates, 43% were wire rods and 8% were pipes. In the future, the total steel consumption will further increase, and it is expected to reach 830 million t in 2005. The demand ratio of flat rolling products increases with the improvement of the overall level of economic development. Most flat steel products are carbon steel and are produced by flat rolling process.Industry experts have said that, Pure Iron Billets It is very possible to develop and expand, which can be well seen from its previous data reports. https://www.slhpureiron.net

  

  C content in steel is determined by mechanical properties. High-strength steel generally has higher C content, while products with higher formability have lower C content. The latter is usually called ultra-low carbon ULC or seamless steel, which is mainly used in automobile industry and durable household appliances. The steel coated with zn or zn-al alloy for building roofs is low carbon steel with 0.03%-0.12%C content. Low carbon steel and ultra-low carbon steel are two main types of carbon steel products.

  

  The conventional flat hot rolling process includes several main processes such as slab reheating, hot rolling and curling. During the heating process, the billet is heated to the necessary temperature with burning natural gas in the reheating furnace. Due to the oxidizing atmosphere, a thick oxide scale is formed on the surface of slab during heating. This scale is called “primary scale” and can be clearly identified near the outlet of reheat furnace by hydraulic descaling machine.

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