Research and Application of Work Roll Contour Technology on Thin Gauge Stainless Steel in Hot Rolling

Shao Jian*, 1, He Anrui1, Kong Fanfu1, Xiang Yang2, Zhou Zhou3
1 National Engineering Research Center of Advanced Rolling Technology, University of Science and Technology Beijing, Beijing, 100083, China
2 Hot Strip Mill of Sichuan Southwest Stainless Steel Co., Ltd, Leshan, 614902, China
3 Hot Strip Mill of Beihai Chende Stainless Steel Co., Ltd, Beihai, 536000, China

© 2015 Jian et al

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: ( This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


Shape control is the key technology for thin gauge stainless steel in hot rolling. Because of high rolling force, work roll can suffer from serious uneven wears, edge drop of strip temperature and so on. And in turn these imperfections lead to defects in thin gauge stainless steel production, such as big crown value, quarter wave, edge profile anomalies, poor rolling stability. In order to improve shape the control ability, one will have to eliminate the quarter wave, make roll wear uniform, increase rolling stability in the thin gauge stainless steel production, use high performance variable crown technology in upstream stands, use mixed variable crown technology in last stand, and use conventional work roll with variable shifting stroke strategy in other downstream stands. The above technologies have been successfully applied in several stainless steel productions, which have completely independent intellectual property rights, and the crown control precision of thin gauge stainless is 98.1%, flatness control precision is 97.5%, also a 1260 mm × 1.6 mm ultra-thin gauge stainless steel was successfully developed.

Keywords: Hot rolling, stainless steel, shape control, work roll contour, quarter wave.