The structure of Azovstal Iron & Steel Works includes four primary production complexes: coke-oven and by-products process, sinter and iron-making, steel-making and rolling complexes.
Coke-oven and by-products plant
Coke-oven and by-products plant (CO&BP Plant) consists of six coke batteries with the designed capacity of 3182.0 thousand t of bulk coke with 6% moisture. Presently, CO&BP Plant provides iron-making complex with metallurgical coke at the amount of more than 65% of the required volume.
Sinter and iron-making complex
Sinter and iron-making complex includes three structural subdivisions – Sinter Plant, BF Shop and Metallurgical Slag Recycling Shop.
- Sinter Plant provides BF Shop with iron-ore raw materials at the amount of more than 35% of the required volume.
- Blast Furnace Shop including five blast furnaces with the total effective volume of 8753 m3 and designed capacity of 5.550 mln. t of iron per year provides steel-making shops with the required volume of conversion iron.
- In 2006 a modern blast furnace (BF2) with higher capacity and more advanced aspiration system as to technologies was commissioned at BF Shop.
- All primary technological processes of iron-making are mechanized and equipped with automated control systems.
- Before June 2007 slag recycling department had been in operation at BF Shop, thereafter it was reorganized in Metallurgical Slag Recycling Shop.
- Metallurgical Slag Recycling Shop produces crushed stone and granulated slag. In course of slag crushing metal extraction is performed. That metal is used afterwards as blast furnace burden additives and metal scrap.
Steel-making complex
Steel-making complex is represented by BOF Shop, including two top blown converters, each with the volume of 350 t, modern second metallurgy units: two twin ladle furnaces and twin vacuum degasser, continuous casting department with four two-strand curved-mould continuous casting machines.
- The complex of continuous slab caster 6 with modern second metallurgy units (two twin ladle furnaces and twin vacuum degasser) was put in operation in 2008.
Rolling complex
Rolling complex includes three subdivisions: Plate Mill, Rail and Structural Steel Mill, Rail Fasteners Shop.
- Plate Mill includes Mill 3600 with the designed capacity of 1950 thousand t per year.
- Plate Mill product mix: plates with the thickness of 6-200 mm and width of 1500-3200 mm for shipbuilding, heavy machine building, power engineering and special engineering, bridge construction, large diameter pipes production for gas and oil pipelines, etc.
- Rail and Structural Steel Mill includes two rolling mills: Rail and Structural Steel Mill 1000/800 and Heavy Sections Mill 800/650. Both bar rolling shops are provided with billets by Blooming Mill (Blooming Mill 1200).
- For the last years product mix and production volumes of Rail and Structural Steel Mill have been consistently increasing.
- Rail Fasteners Shop produces rail fasteners (fish plates and base plates) for wide gage rails. Designed annual capacity amounts to 285 thousand t of rail fasteners.
- Ball rolling department of Rail Fasteners Shop produces steel milling balls with the diameter of 40 - 120 mm of various hardness groups to be used in mining and other industries for milling in course of ore and nonmetallic materials preparation.