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Siemens to Supply Finger-Shaft EAF, Ladle Furnace, Billet Caster for New Severstal Minimill

07/07/2008 - Siemens VAI Metals Technologies will supply a finger-shaft electric arc furnace, ladle furnace, dedusting system, and billet caster for OAO Severstal’s new long-product steelmaking facility to be built at Balakovo in Russia.

Siemens VAI Metals Technologies has been contracted by OAO Severstal to supply a finger shaft electric arc furnace, ladle furnace, dedusting system, and billet caster for a new long-product steelmaking facility to be built at Balakovo in the Saratov Oblast Region. The order value is a two-digit million Euro figure.
 
Severstal’s “Russian Steel and Metalware” business division decided to build a new steel works in the city of Balakovo, about 1000 km southeast of Moscow, in support of its effort to broaden its range of long products and to be closer to end-consumer customers. The business unit will produce carbon and low-alloy structural steel that will be rolled into light structures, reinforcement bars and wire.
 
Siemens Metals Technologies will supply a new 125-ton finger-shaft electric arc furnace for the new mill, as well as a 125-ton ladle furnace, associated primary and secondary dedusting facilities, and a 5-strand high-speed billet caster. Heat captured from the furnace offgas will be used to preheat the scrap, which is retained in the shaft by “fingers”, significantly reducing both electrical energy consumption and tap-to-tap times. The AC EAF will use 610-mm diameter electrodes. The ladle furnace will be used to fine-tune the steel composition and to adjust the final temperature for casting.
 
Siemens will equip the new billet caster with DynaFlex Oscillators to enable online adjustment of the mold-oscillation parameters, i.e. stroke and oscillation frequency, according to steel grade, casting speed and operational requirements. The retractable-type oscillator that will be used in the caster allows for continuous billet production during mold replacement on individual strands. Siemens will also fit the caster with Diamold high-speed casting molds, which feature tapered mold tubes with open bottom corners to reduce strand friction. The caster will produce 150- x 150-mm billet sections.
 
Upon completion of this project scheduled for mid-2010, Severstal is planning to produce an additional one million tonnes of billets, which will be rolled into structural steel products for use in the local market.
 
Severstal is the biggest steel manufacturer in Russia and the fifth largest in the world. Severstal’s “Russian Steel and Metalware” business division, with rolling and processing facilities located in Cherepovets, Kolpino, and Izhora, including Severstal-Metiz, produced a total of 11.27 million tonnes of crude steel in 2006, comprising a wide range of flat steel and long products. These include hot- and cold-rolled flat steel, coated steel, hot-rolled sections, roll-formed shapes, rebars, wire rod, and pipes.
 
The Siemens Industry Sector (Erlangen, Germany) is a leading supplier of production, transportation and building systems. The Sector comprises six Divisions: Building Technologies, Industry Automation, Industry Solutions, Mobility, Drive Technologies and Osram. In fiscal 2007 (ended September 30), Siemens Industry generated sales of approximately EUR40 billion (pro forma, unconsolidated) with around 209,000 employees worldwide.
 
With the business activities of Siemens VAI Metal Technologies (Linz, Austria), Siemens Water Technologies (Warrendale, Pa.), and Industry Technologies (Erlangen, Germany), the Siemens Industry Solutions Division (Erlangen, Germany) is one of the world's leading solution and service providers for industrial and infrastructure facilities. Using its own products, systems and process technologies, Industry Solutions develops and builds plants for end customers, commissions them and provides support during their entire life cycle.