In May 1929 the government decided to build a large industrial complex Zaporozhye ferrous and nonferrous metallurgy. Becomes the main construction Dnieper industrial complex where the original plant was part of sheet steel – modern Zaporizhstal.
Construction of “Iron and Steel” will start in January 1931. The project developed a new plant -Union Institute “Gipromez”.
In October 1932 at the industrial site of the future IC “Iron and Steel” delivers electricity just built DnieproGES, the largest hydroelectric power plant at the time of the country.
November 16, 1933 – the birthday of Zaporizhstal. The enterprise first blast furnace blow – it is at that time the most powerful in Ukraine, its volume – 960 cubic meters.
The new plant becomes Europe’s largest steel mill, with a design capacity of 1.2 million tons of iron and 1.4 million tons of steel.
In 1934, the Zaporizhstal is the work of the DP number 2, and in 1938 – DP number 3, while the largest in the world, its volume of 1300 cubic meters.
In 1935 the Zaporizhstal comes into operation the first open-hearth furnace. After it has entered into service just two open hearth furnaces – the first time in the global steel industry.
In 1937, the company enters into operation the first domestic slabbing. He becomes the first not only in the country but also in Europe, and only the third in the world.
In 1938, Zaporizhstal is the work of Europe’s first continuous hot rolling sheet steel. By its power and bandwidth new shop is unique in Europe.
In 1939 part of the work of the cold rolling shop № 1.
By 1940 Zaporizhstal produces 70 percent of all steel sheet is produced while in the country. From this point on agricultural engineering and automotive country got thin sheet products produced domestically.