Hot Briquetted Iron (HBI) is a premium steelmaking raw material that contains 91% to 94% total iron (Fe) in a nearly pure form that is useful in the iron blast furnace (BF), the basic oxygen steelmaking converter (BOF or BOS), and the electric arc furnace (EAF). It has advantages over steel scrap due to its high bulk density of about 180 lb/ft3 or 2.88 tonnes/m3, and the very low content of undesirable chemical elements such as Cu, Ni, Cr, Mo, Sn, and S. The high specific density of >5.0 g/cc results in a metallic structure that resists breakage and the HBI is also very resistant to degradation due to the effects of weathering. HBI is free flowing in bulk materials handling equipment that facilitates its shipping, storage and feeding from bins.
Gangue is the term for the oxide minerals that remain in the HBI and that are removed in the iron or steelmaking process, i.e. CaO, Al2O3, SiO2, MgO.
Please also refer to the Technical Library in the “Technical” section of this website for relevant technical papers regarding HBI.
热压铁块：属于铁矿中还原铁的一种，含铁量基本都在90%以上，中国进口的多数用于电炉炼钢和转炉炼钢。直接还原铁具有成分稳定,有害杂质低,粒度均匀等多种优点,是优质钢铁原料。
