Product description

In recent years, with the rapid growth of vanadium prices and large fluctuations, the quality control and production cost control of steel mills have been greatly affected. In particular, the implementation of the new rebar standard GB/T1499.2-2018 has further promoted Increase in vanadium prices. In order to control costs, steel mills have experimented to find new cost control processes and methods. It is in this context, in order to ensure that the strength and performance of the steel are stable, Northeastern University and the company jointly developed a new type of high nitrogen titanium composite Rare-earth cored wire is used for nitriding titanium through high temperature and high pressure to passivate titanium to prevent the oxidation reaction of titanium in molten steel. It is added to steel in the form of cored wire to improve and stabilize the titanium in molten steel. The role of yield. Use cheap titanium-nitrogen alloy instead of high-cost vanadium-nitrogen alloy to refine grains and improve the performance of steel bars. And make proper use of the effects of precipitation strengthening by the formation of nitrides by N and titanium and other elements in steel, and the effects of fine-grain strengthening and solid solution strengthening by the precipitated nitrides. Under the premise of ensuring the mechanical properties of the product, reduce vanadium nitrogen and The addition of other alloys reduces steelmaking costs by 8-60 yuan/ton steel.

Applicable types of rebar

It is suitable for the production of various hot-rolled ribbed rebars (including seismic rebars) in the national standard, such as: HRB500 (E), HRB400 (E), etc.

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