Development and implementation of grade 62PP steel production with special requirements for non‑metallic inclusions content

Abstract

OJSC “BSW – Management Company of Holding “BMC” produces high‑quality steel used in the automotive, railway, and oil and gas industries. The production of these steel grades involves controlling a range of quality parameters for both continuous cast and hot‑rolled steel billets to ensure the required mechanical, technological, and operational properties of the finished products. The steelmaking process aims to obtain high‑quality steel with the desired microstructure – low levels of harmful impurities and non‑metallic inclusions (hereinafter referred to as NV). This article describes the work and results obtained in the development of the technology for producing hot‑rolled grade 62PP steel, using the example of low‑hardenability carbon steel intended for the production of springs used in vehicle suspension.