Large-sized steel circle 200-480mm, Dnipropetrovsk region.

Steel circle of large sizes 200-480 mm/ Steel circle is a type of construction and billet rolled metal, which is a rod with a round cross-section. Most often, a steel circle is used as a blank for pipes. But it also found wide application in the automotive industry. If the diameter of the steel circle is not more than 9 mm, it is supplied in coils. With a larger diameter, the steel circle is cut into separate bars.

According to the degree of accuracy of execution, it is customary to distinguish three types of steel wheel.

Circles with the letter "A" are recognized as the most accurate, having the same diameter throughout and the same length, if we are talking about rods.

Steel circles "B" can have minimal errors in diameter and inaccuracy in length, but in general these are circles of high accuracy.(//tractor-service.com)

K "B" is the most demanded, since the price of such a steel circle is much lower than that of circles of groups A and B. At the same time, the degree of accuracy of the diameter and length of the bars, as well as the errors in the production of steel circle B correspond to the standards of GOSTov.

If the length of the steel circle is considered as the main characteristic, then three groups can be distinguished:

- measuring length (calibrated steel circle);
- a multiple of the measured length;
- immeasurable length.