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Structural steel

Quality structural steel is subdivided into carbon and alloyed steels.

Numbers in the steel grade designation indicate the average carbon content in percent centesimals.


Alloyed structural steel is made per GOST 4543-71 .

The steel gauge is similar to that for quality carbon steel.

First two numbers in the steel grade designation indicate the average carbon content in percent centesimals.

Digits that follow the letters indicate the approximate content of doping element in integral units. No digit implies that the content of this element is below 1.5% (upper limit).

For more details see GOST norms & Technical Requirements section.



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