Diameter D, mm

Steel Grade

Standard

Standard for technical requirements

Round Rolled Bars
GOST 2590-88

12, 13, 14, 15, 16, 17, 18, 18,5, 19,
20, 21, 22, 23, 24, 25, 26, 27, 28, 30,
32, 33, 34, 36, 38, 40, 42, 45, 48, 50, 
52, 53, 54, 56, 60, 65, 70, 72, 75, 80

St0, St1, St2,
St3, St4, St5, St6

GOST 380-94

GOST 535-88
categories 1-5, group I-III
GOST 1050-88,
group of quality
surfacen 2GP, 3GP
ГОСТ 4543-71,
group of quality
surface 2-3
GOST 19281-89;
GOST 14959-79,
categories 3, 3B;
GOST 1435-99;
ТUU 332-234-90-96

10-50

GOST 1050-88

15H, 20H, 30H, 35H, 40H, 18HGT, 25HGT, 12HNZA, 20HBZA, 40HN, 30HGSA, 35HGSA, 20HNR, 20HGNR, 45HN

GOST 4543-71

65G, 55S2, 55S2A, 60S2, 60S2A

GOST 14959-79

09G2S

GOST 19281-89

U7, U8, U12

GOST 1435-99

25G2

TUU 332-2344-90-96

St37-2, St44-2, St52-3