UKREXPORT has direct access to producers of hot-rolled as well as cold-rolled and cold-drawn Round Steel Bars & Rods in Ukraine and neighboring countries. Round Rolled Steel here is produced according to local domestic standards only: 

GOST 30136-95: Carbon Steel Wire Rods, hot-rolled, common quality.
Diameter: 5.0mm, 5.5mm, 6.0mm, 6.3mm, 6.5mm, 7.0mm, 8.0mm, 9.0mm.
Packing: 5-9mm in bundles or rods per min. 160kg (possible min. 50kg/100kg)

GOST 7417-75: Calibrated Round Steel, cold-rolled or cold-drawn.
Diameter: 3-100mm; Length: 1.5-6.5m or specified
Packing: 3-25mm in bundles or rods, 25-100mm in bars.

GOST 2590-88: Round Steel Bars, hot-rolled, common & high quality.
Diameter: 5-270mm; Length specified within 2-24m
Packing: 5-9mm in bundles or rods, 10-270mm in bars.

The above Round Rolled Steel is not to be mistaken with round steel for reinforcement of ferroconcrete structures as per GOST 5781-82, for example, ranging only from 6mm to 80mm in diameter and serving only as carcasses in monolithic ferroconcretes or as transversal pivots and reinforcing ropes in building barely. The latter is a narrowly specialized building material, whereas Round Steel as finished product has a variety of ultimate applications. 

A variety of steel grades such as common & high quality, low & high alloyed, unalloyed or automatic (free-cutting) steel is admitted for making the above Round Rolled Steel. Minimal order quantity is 1000MT because this is minimal capacity of a single blast furnace where requested steel grade for requested type of Round Steel is to be smelted.

Please note: Any original production of Round Rolled Steel at that or other factory is not open public process. Inquiry for particular production/offer/price has to show authentic information: 1) who (what company) is buyer/importer/consignee; 2) where (what bank) his payment is to come from: 3) how (in copies of docs) he bought/imported/consumed Rolled Steel last time, to prove 1) and 2).