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Metinvest launched the production of new rebar types at Makiivka branch of Yenakiieve Steel

5 April 2012

The production of two new rebar types was developed and the new rolling practice for standard deformed bars was applied at medium section mill 390 of Makiivka branch of Yenakiieve Steel in March, 2012. Introduced practices will allow extending the production range of the company and therefore being closer to the customer.

Production of rebars No.22 and 18 with strength grade A-3 according to the standard GOST 5781was developed of low-alloyed steel grade 25G2S (25Г2С) by means of hot rolling without thermal hardening. There was also developed a new rolling technology for rebar No.10, 12, 14, 16, 18, 22 and 25 with strength grade A400 according to national standard DSTU 3760, which used to be produced of steel -4 by means of thermal hardening in the process stream.

«Client focus is the main target of production process in our works, — highlighted Alexander Chudnovets, Director of Makiivka branch of Yenakiieve Steel. — Medium section mill 390 is one of the best rolling mills within Ukraine which is used generally for chequer rods of steel St4sp production with thermal hardening. However, as soon as we have got an order for the special type of bars we set a task to develop the production of new bars alongside with brand new rolling practice. Our specialists dealt successfully with the task and we won the client.»


25G2S is structural low-alloyed steel for the welded structures. It is used for production of deformed bars of grade III with diameter range from 6 to 40 mm. Reinforcing rod produced at Yenakiieve Steel facilities is widely used in construction for manufacturing RC (reinforced concrete) units and structures. Plastic characteristics of the structural rebar are critical for RC structures under load (which are generally used for metal frameworks of the buildings). In efficient combination with concrete, rebar reduces the effect of tensile stress and reinforce concrete in compression area resulting in stabilisation of the structure and improvement of its resistance to different kinds of stress. The quality of welded seam is improved as the thermal hardening of chequer rods is skipped.