Tag Archives: Iron & Steel

Moon Iron & Steel commissions SMS group with the supply of a complete minimill

Oman-based Moon Iron & Steel Co. S.A.O.C. (MISCO) has contracted SMS group to build a new rebar production minimill. The new steel complex, the first of its kind in the Middle East region, is being built in Sohar Industrial Estate, Sultanate of Oman, and operation will commence in 2018.The steelworks, featuring a 140-t AC electric arc furnace, a 140-t ladle furnace, and a five-strand continuous billet caster, is able to produce 1.2 million tons per year of billets, out of which 1.1 million tons per year are rolled into rebars from eight to 40 millimeters. The fully-continuous rolling line is equipped with fourteen stands arranged in horizontal and vertical configuration followed by two high-speed finishing blocks with six “V” type mill stands each. The roughing and intermediate trains are designed as HL housingless stands. The “V” blocks are specifically designed for highly efficient and productive finish-rolling of rebars up to 50 meters per second. The high-speed delivery system HSD® enables to roll material at speeds of 41 meters per second.

“Paramount among the requirements were the lowest possible energy consumption as well as minimal emissions”, said Mr. Sasikumar Moorkanat, MISCO CEO. The response to this challenge is SMS group developed CMT® mill (Continuous Mill Technology). CMT® has taken the basic minimill concept one step forward: The direct linking of the rolling mill with the steelworks guarantees short distances. Rolling takes place without time lag by exploiting the casting heat. CO2-intensive reheating furnaces can be dispensed with. Instead of an oil- or gas-fired furnace, an inductive heating system is employed. This system does not reheat the billets but only equalizes the temperature profile. The induction heater gives you perfect control of the starting temperature for the rolling mill – according to the billet speed. This solution requires much lower investment costs. By eliminating the complete reheating stage, energy costs and the impact on the environment are markedly reduced.

Furthermore, SMS group supply covers also the complete electrical and automation package that includes Level-1 and Level-2 process control. In addition to seamlessly integrating the process functional units, with the implementation of the state-of-the-art process solutions already highlighted, the automation system will allow MISCO to meet all possible market demands with built-in capabilities for plant-wide production planning, scheduling, tracking and reporting.

Source: SMS group

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Tangshan orders two continuous galvanizing lines from Primetals Technologies

  • Continuous galvanizing lines will expand cold rolling mill supplied by Primetals Technologies
  • Production capacity of high-strength metal sheeting to be increased by 650,000 metric tons per annum
  • Processed grades produced for use in the automotive industry
  • Special aluminum-silicon coating technology package to be installed

Tangshan Iron and Steel Group Co. Ltd., a Chinese steel producer, has awarded Primetals Technologies an order to supply two continuous galvanizing lines to expand cold rolling mill no. 2 at its Tangshan plant in Hebei Province. This will increase the production capacity for high-strength, coated metal sheets by 650,000 metric tons per annum. The sheets will mainly be used by the automotive industry. Continuous galvanizing lines nos. 5 and 6 will be constructed in a new hall alongside the existing cold rolling mill. This was also supplied by Primetals Technologies, and has been in production since the beginning of 2015. The two new continuous galvanizing lines are scheduled to come into operation in 2017. A special aluminum-silicon coating technology package will be implemented on one line.

Tangshan Iron and Steel is part of the Hebei Iron and Steel Group. With an annual production of around 47 million metric tons in 2014, it is the largest steel producer in China. Cold rolling mill no. 2 comprises a coupled tandem pickling line, a continuous annealing line and a galvanizing line. The mill has an annual capacity of 1.8 million metric tons of high-strength cold strip, and also produces high-quality steels for the Chinese automotive industry. The two galvanizing lines now ordered from Primetals Technologies are part of the second expansion stage intended to create production capacities for these high-quality steel grades. The lines will process not only grades for vehicle body parts but also aluminum-coated hot-forming steel.

Primetals Technologies is responsible for the engineering, manufacturing and supply of the mechanical, electrical and process technology equipment for the lines. Galvanizing line no. 5 will have a capacity of some 250,000 metric tons per annum. It will process cold strip in widths ranging from 850 to 1,300 millimeters, and thicknesses from 0.18 to 1.5 millimeters. Galvanizing line no. 6 will be able to galvanize 400,000 metric tons of cold strip per annum in widths ranging from 850 to 1,600 millimeters, and thicknesses from 0.5 to 3 millimeters. There will also be the possibility of coating the cold strip with an aluminum-silicon alloy. The new lines will be integrated into the existing quality control system of the cold rolling mill plant. Primetals Technologies will also supervise the assembly and commissioning of the lines.

The existing galvanizing line supplied by Primetals Technologies in the cold rolling mill of Tangshan Iron and Steel Group Co. Ltd. The company has now ordered two further lines.

Source: Primetals Technologies

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Qingdao Iron and Steel orders SBQ rolling mill from SMS group

Qingdao Iron and Steel, based in Qingdao, Shandong province, China, has placed an order with SMS group to supply an SBQ (Special Bar Quality) rolling mill. The mill has an annual production capacity of 700,000 tons of special steel. Qingdao is thereby expanding its product portfolio to include high-quality special steels for use in the automotive industry.

Quingdao erhält von SMS einen 3-Walzen Maßwalzblock vom Typ „PSM 380/5“.
“We were impressed by the SMS concept and technical know-how from the very beginning. This special steel mill will enable us to enhance our leading market position even further,” says Liu Tieniu, Deputy General Manager of Qingdao Iron and Steel who is responsible for the construction of the new plant.

SMS is supplying the plant’s core technology, including an up-to-date 3-roll sizing block of type PSM® (Precision Sizing Mill) 380/5, which is capable of rolling all finished dimensions from 16 up to 90 millimeters in diameter.

Thanks to its system of hydraulic adjustment under load, all dimensions can be produced cost-efficiently on the basis of customers’ individual requirements, including even small batch sizes. The 3-roll PSM® is equipped with a MEERgauge® cross-section measuring system and “monitor control technology”. This allows corrections to be made to the finished dimensions while production is still ongoing.

The plant was specially designed for the temperature-controlled rolling of bars. With its ultra-modern cooling sections, five-stand 3-roll PSM® customized cooling processes and high cross-sectional reduction capability, Qingdao is able to produce high-quality end products with excellent mechanical properties and narrow tolerances at the same time.

The full package of supplies and services is rounded off by the CCT® (Controlled Cooling Technology) system, which was developed by SMS and is used to adjust and control the requisite cooling processes. This ensures that the mechanical properties, such as the tensile strength and toughness as well as the desired microstructure of the end product, are precisely attained. The cooling bed and associated downstream equipment, designed by SMS group, are tailored to the required cooling processes. This includes an integrated quick transport system. The plant design already takes into account the future expansion of the plant to include a coiling line.

Commissioning is scheduled for the third quarter of 2015.

Source: SMS Meer GmbH

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