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Steel hot-rolled round bar

Steel hot-rolled round bar

Currently, the domestic industry produces a fairly large range of this type of rolled metal as a steel circle, in the manufacture of which can be used alloyed, low-alloy, carbon and high-carbon steel, which determines its main technical characteristics and, as a result, the scope of its application. In General, it can be noted that circular steel rolled products, namely this name is a professional designation of the circle, are mainly used in construction, machine building, machine tool construction, for the manufacture of tools, fasteners, etc.

Круг стальной

The main volume of production of these products is accounted for by hot-rolled technology, but in some cases the circle can be made by cold-rolled or cold-drawn method. In its appearance, the hot-rolled steel circle is supplied in the form of round bars with a diameter from 5 mm to 270 mm. It is also possible to manufacture these products with a larger diameter if the customer needs to buy a steel circle of a certain size for a specific variant of its further use. Regulates the main characteristics and production technology of the circle of the current GOST 2590-88.

Main characteristics of hot rolled steel circle:

Диаметр, ммПредельные отклонения, мм, при точности прокаткиПлощадь поперечного сечения, мм2Масса 1м, кгМетров в тонне
АБВ
Мотки
5,0+0,1
-0,2
+0,1
-0,5
+0,3
-0,5
19,630,1546487,8
5,523,760,1875361,9
6,028,270,2224505,4
6,331,170,2454086,6
6,533,180,2603839,0
7,038,480,3023310,1
8,050,270,3952534,3
9,063,620,4992002,4
Прутки
10,0+0,1
-0,3
+0,1
-0,5
+0,3
-0,5
78,540,6171622,0
11,095,030,7461340,5
12,0113,100,8881126,4
13,0132,731,042959,7
14,0153,941,208827,5
15,0176,711,387720,9
16,0201,061,578633,6
17,0226,981,782561,2
18,0254,471,998500,6
19,0283,532,226449,3