Back in 1990, the first version of the GOST 2590-71 standard was reissued into the identical Interstate standard – GOST 2590-88 “Hot-rolled round steel. Assortment »
The UkrNIIMet Research Institute of the UKRAINIAN RESEARCH & TECHNOLOGY CENTER OF METALLURGY INDUSTRY «ENERGOSTAL» revised this standard in 2006. Thus, the new version of GOST 2590-2006 “Hot-rolled round steel. Assortment.” has released. GOST 2590-2006 was transformed into DSTU 4738: 2007 “Hot-rolled steel sections. Assortment.” by Decree No. 40 of February 26, 2007, on the approval of national standards of Ukraine. The standard GOST 2590-2006 / DSTU 4738: 2007 regulates the uniform requirements for the 5 mm to 270 mm hot-rolled steel rolled products with a circular cross-section in all areas of industry.
The regulatory document gives the classification, basic parameters and dimensions of the rolled steel hot-rolled round.
According to GOST 2590-2006 / DSTU 4738: 2007, rolled products are classified to rolling accuracy, length and curvature, the requirements for rental ovality and deviations to the length. The rods nominal diameters and tolerances to them, the cross-sectional area and the weight of one meter the round billet also indicated in GOST 2590-2006 / DSTU 4738: 2007.
GOST 2590-2006 / DSTU 4738: 2007 is one of the main documents regulating the quality of raw materials for the steel grinding balls production. The raw material for ENERGOSTEEL products is hot-rolled steel rounds and the rolling accuracy (billet diameter and nominal deviations to it) is very important for us because a mismatch in the billet diameter can lead to our products marriage – a disparity in geometric dimensions of the steel grinding balls.
Important is the “technological length” – the billet length which can easily pass through all production line sections. The parameter “billet curvature” is very important too – the curve billet use during induction heating leads to damage the inductors lining.
In conclusion, we want to note the importance of the standard GOST 2590-2006 / DSTU 4738: 2007: it would be difficult to obtain high-quality billets for the steel grinding balls hire and produce high-quality products without this regulatory document.