Primetals to modernize 10-strand billet caster with SRD

17 October 2019

10-strand billet caster

Chinese steel producer Zenith Steel Group Co., Ltd. (Zenith Steel) awarded an order to Primetals Technologies to modernize a 10-strand billet caster in its converter steel making plant #3 in Changzhou. The billet caster will be the first one worldwide to be equipped with the new SRD (Single-Roll DynaGap) segments. The SRD segment has been specially developed for use in the area of final solidification, and it enables the upper rolls to be pressed down individually onto the solidifying strand. This enables the final solidification point to be followed precisely. Technological packages like DynaPhase, Dynacs 3D and DynaGap SoftReduction 3D will further improve the internal billet quality with regard to center porosity and center segregation. Start-up of the modernized casting machine is expected for March 2020.

The 10-strand billet caster of Zenith Steel in its Changzhou, Jiangsu Province plant has a rated capacity of 2 million metric tons per year. It produces section with a cross-section of 160 × 160 millimeters at a maximum casting speed of 2.4 meters per minute. Steel grades processed include low, medium and high carbon steels as well as tube, spring, cold heading, and tyre cord steels.