Electrical Steel

Cold Rolled Grain Oriented - CRGO

From 

Aribasteel Ltd.

The official agent of Russian CRGO For the Arabian Gulf Markets (including Iraq)

CRGO is melted in and tapped from basic oxygen furnaces (BOF) with subsequent casting at continuous casting machines (CCM).

A comprehensive technology provides for liquid steel blowing with inert gases, vacuum degassing and secondary metallurgy.

Hot rolling is performed at continuous hot strip mill.

Cold-rolled strip production

First strip surface is de-scaled at the pickling line. Then the strip undergoes first cold rolling at continuous 4-stand mill to obtain intermediate thickness.

Cold-rolled strip is subjected to decarburization re-crystallization annealing at continuous annealing line. 

In the process of second cold rolling the strip is reduced to its final thickness. After heat-resistant coating is applied (MgO), the coils undergo high-temperature batch annealing in hydrogen atmosphere.  

Then the strip is cleaned from excessive MgO, coated with electric insulation coating and undergoes further processing at thermo-flattening and electric insulation coating lines.

Part of coils is laser-treated at laser facility (domain refining).

Slitting and cut-to-length lines are used for edge trimming, slitting and commodity coil generation. 

Finished products are packed and shipped by railway or by trucks.