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The company is the largest iron and steel joint enterprise in France, founded in 1948, due to the merger of Usinor and Sasi Carol (Sacilor) companies. By optimizing the company management and rationally organizing the production and utilization of resources, the company has greatly improved its competitiveness. In 1980s, the company spent billions of dollars on factories and equipment expansion, setting itself as an important flat rolling supplier for the European auto industry and the largest stainless steel manufacturer in Europe. After its privatization in 1995, the company launched a grand plan of international investment and expansion. In the 1997~1998 year, the company made a series of overseas investments in stainless steel business. In 1998, the company gained control of Acesita in Brazil, making it a subsidiary of the company. In 2000, the company produced 300 thousand tons of stainless steel plates and exported 50% to North America and Europe. The company plans to invest 180 million dollars in 2002 to increase its steelmaking capacity from 350 thousand tons to 500 thousand tons, converting the converter into a AOD furnace, increasing the output of the electric furnace and stopping the production of carbon steel. In December 1998, the company acquired the 53.5% stake and holding of JOBeSandLaughin, the largest stainless steel plant in 1980s. Subsequently, at the joint and annexation of the company with the albelt group, the company of ALZ, a stainless steel professional manufacturer of the albelde group, was made up of the company. As a result, the company merged with UgineSA in France to form a new Arcelor group. At present, ALZ has an annual output of about 600 thousand tons of stainless steel. It is one of the few factories in the world that can produce wide 2000mm stainless steel coil. In 2000, the Group invested 166 million euros in ALZ company, increased the number 2 electric furnace, improved the refining and continuous casting equipment, added the 4 annealing acid washing line, increased its annual output to 1 million tons in 2002, and reached 1 million 200 thousand tons in 2004. In this way, after the completion of the expansion, the total stainless steel production of the Arcelor group will exceed the Krupp tyre stainless steel company (KTS), the first in the world. In addition, the company is also the largest foreign investor in Thailand's THAINOX stainless steel company.
The production process of Arcelor company and its five holding stainless steel subsidiaries is as follows:
(1) the world's latest compact continuous cold rolling and annealed pickling line was built at isbeg factory in March 1999, with an annual capacity of 25~27 million tons, and the product is (0.8) 1 - 4mmX700 - 1600mm cold rolled stainless steel strip. The hot rolled stainless steel coil can be rolled by only one step in the production line.
The cold rolled stainless steel strip is processed, thus shortening the process and reducing the cost.
(2) ALZ company adopts three step process smelting process. The slab of continuous casting is cold rolled in 2 sets of cold rolling in our factory after hot continuous rolling (outside mill), and then annealing, pickling and finishing.
ALZ company has the world's only production line that can produce 2000mm wide and thickness up to 8mlTl cold rolled stainless steel rolls, and also a few production enterprises in the world which can produce 2000mm hot rolled stainless steel sheet.
4. Like the isbeg factory, the company is also a manufacturer of 250 thousand tons of cold rolled stainless steel sheet in a compact continuous cold rolling annealing and pickling production line.
The stainless steel products of the company are mainly bloom, small billet, slab, hot rolled strip, hot rolled pickling sheet and strip, cold rolled sheet and tape, bright annealed sheet and tape, wire and round steel, bright bar.

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