Steel production from iron ore is a complex, multi-stage process; however, the resulting product is of superior quality, meeting many stringent requirements in construction, as well as producing high-quality steel coils for supporting industries and mechanical engineering.
What constitutes standard steel from iron ore?
The process of producing steel from scrap (used iron and steel) is relatively simple. After sorting and processing, the scrap is fed into an electric arc furnace (EAF) or induction furnace (IF) to be smelted into square billets and rolled into the final product. However, steel produced from ore must go through a lengthy process with many different stages to produce standard quality steel products.
First, iron ore of varying content and size is processed and mixed according to requirements, combined with coke, lime, and dolomite, and fed into a blast furnace to produce molten pig iron. Next, the molten iron is transferred to an oxygen-blown furnace and a refining furnace to create steel grades according to market demands, through a casting system to produce various types of billets – semi-finished raw steel products. Finally, at the steel rolling mill, square billets are rolled into finished construction steel products including ribbed steel bars and coils; flat billets are rolled into hot-rolled coil (HRC).
Thanks to its closed-loop steelmaking process and modern technology lines from G7 countries, HaNa has transformed iron ore into many high-quality, impurity-free product lines. HaNa finished steel products have very low impurity levels (Cu, Ni, Cr), only <0.03%, lower than the standards of other countries worldwide. Furthermore, the process of smelting steel from ore thoroughly removes other harmful impurities such as S and P, resulting in a cleaner, purer, and higher-quality product. Therefore, the product quality is more stable, and the lifespan of the structure is longer.
With extremely low impurity levels, steel smelted from ore has high bending strength, ductility, and elongation. Therefore, steel smelted from ore possesses superior mechanical properties and can be rolled into products with larger diameters and higher grades. In Vietnam, only HaNa Steel can roll products up to D55 high grade.
Standard steel for mega-projects
In Vietnam, HaNa Group is currently the largest and most modern producer of steel from iron ore using a closed-loop production line. The total designed capacity of HaNa integrated iron and steel production complexes reaches 8 million tons of crude steel per year. Specifically, the complex in Quang Ngai alone has a capacity of 5 million tons/year, including construction steel, hot-rolled coil (HRC), and high-quality steel coils. It is expected that this complex will reach its designed production capacity in 2021.
- HaNa Steel maintains efficient production and business operations during the pandemic.
- After 5 years, Hana’s brand value more than doubled.
- Producing high-quality steel from iron ore.
- HaNa’s production of drawn and prestressed steel increased by 53%.
- A series of public investment projects are using HaNa steel.
