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Zaporozhe, Ukraine

Panchenko A.I.,PAO Dneprospetsstal | Medovar L.B.,Ukrainian Academy of Sciences | Kazakov S.S.,PAO Dneprospetsstal | Logozinskii I.N.,PAO Dneprospetsstal | And 4 more authors.
Steel in Translation | Year: 2012

The possibility of reconstructing the electroslag remelting facilities at the Dneprospetsstal' plant is considered, with a view to improving performance and product quality. © 2012 Allerton Press, Inc.

Panchenko A.I.,PAO Dneprospetsstal | Korol' L.N.,PAO Dneprospetsstal | Zhaivoronok A.V.,PAO Dneprospetsstal | Tur L.V.,PAO Dneprospetsstal | And 2 more authors.
Steel in Translation | Year: 2012

The introduction of pipe-blank production (blank diameter 180 mm) from corrosion-resistant duplex steel (UNS S 31803, UNS S 32205, DIN 1. 4462, and 03X22H5AM3) at PAO Dneprospetsstal' plant is considered. The chemical composition of the melts at PAO Dneprospetsstal' and pipe blank produced from duplex at traditional foreign suppliers is compared. The content of nonmetallic inclusions is studied, as well as the distribution and content of ferrite-austenite phases, the impact strength, the resistance to pitting corrosion, and the high-temperature deformability. © 2012 Allerton Press, Inc.

Peresadenko O.V.,PAO Dneprospetsstal | Logozinskii I.N.,PAO Dneprospetsstal | Nikitin S.B.,PAO Dneprospetsstal | Smolii I.A.,PAO Dneprospetsstal | Marenkov N.A.,PAO Dneprospetsstal
Steel in Translation | Year: 2012

The homogenization of 4X5MΦC (1. 2343/H11) steel ingots and cooling of the rolled bar are corrected so as to obtain a transverse work of impact of ≥200 J in the vacuum-treated product with constant forging. Longer holding in homogenization reduces the liquation in the metal, while intermediate air cooling of the metal prior to slow pit cooling prevents the formation of a carbide network in the microstructure. Over the whole cross section of the final metal bar (diameter 165-190 mm), the work of impact meets Bohler specifications and exceeds 200 J. © 2012 Allerton Press, Inc.

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