Abstract
Residual elements in the batch have a considerable influence of the quality of converter steel. Of these, nitrogen is the most difficult to regulate in smelting and represents one of the main obstacles to the production of high-quality steel—in particular, steel for wire rod, springs, and cord [1–3]. High nitrogen content in steel produces strain aging and is associated with lower plasticity of cold-rolled and tempered low-carbon steel sheet. Carbon-bearing materials—carburizers—are used for ladle treatment of such special steels. Such materials must have a low content of nitrogen and sulfur (≤ 0.5%). In addition, their moisture content and yield of volatiles must be as low as possible. They are confined to size class 6-1 mm.
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