Hot Strip Mill Turns ’21’

Hot Strip Mill at Hazira celebrates 21 years of successful operations.

The primary function of the Hot Strip Mill (HSM) is to reheat semi-finished steel slabs nearly to their melting point and then roll them thinner and longer through successive rolling mill stands that are driven by motors. Finally, the HSM coils up the lengthened steel sheets into HRCs or hot rolled coils before their transportation.

On 23 March, 2016, the Hot Strip Mill (HSM) at Hazira celebrates 21 years of successful operations. Until date, the HSM has clocked a cumulative production of over 38 Million tonnes, while producing over 300 different grades of steel.

The HSM was commissioned in 1995. Today, the mill is the cornerstone of Essar Steel, which is among the leaders in the hot rolled product market.

The 2,000 mm Strip Mill is one of the widest strip mills of its kind in India. It offers a broad range of products—from 1.6 mm to 20 mm thickness—and includes low to high carbon grade families, HSLA (High Strength Low Alloy Steel) formable grades, API (American Petroleum Institute) grades (upto X-80), silicon grades and alloy products, such as Corten. It cater to the needs of various sectors like capital and consumer goods, shipbuilding, construction, engineering and automobiles.

Since its inception, the HSM has seen its capabilities expand. A second re-heating furnace was commissioned in 1998 and technology upgraded in 2005. The production capacity also leapfrogged from 1.6 MTPA to 3.6 MTPA. This signified the culmination of a phase of accelerated growth that catapulted Essar Steel’s flat products business to a position of formidable strength—both operationally and financially.

The expansion paved the way for further innovation, restructuring and redesign, which exemplified the operational excellence and quality control at the HSM. Enhanced material yield was achieved through Kelk manufactured crop cut optimisation system in 2009. To ensure 24-carat surface quality, Parsytech manufactured online surface inspection system that was installed and commissioned in 2011. A robotic marking machine was successfully installed in 2011 to improve coil identification.