Unique new cold rolling mill for Shanghai STAL’s high-end products

Fives and Shanghai STAL Precision Stainless Steel Co., Ltd. signed a contract for design, manufacturing and supply of a unique new 20Hi cold rolling mill. The new mill is designated for STAL’s new stainless steel plant in Shanghai’s Xin-Zhuang industrial zone in China.

DMS 20Hi cold rolling mill

STAL, a joint venture between USA’s Allegheny Ludlum and China’s Baosteel Group Corporation, specializes in manufacturing and marketing precision-rolled stainless strips.  Aiming to increase its current capacity of precision stainless steel strips, STAL has decided to extend its cold rolling workshop with a new bright annealing line and a new 20Hi cold rolling mill, to be commissioned in 2017. 

Fives will design and deliver a new 20Hi cold rolling mill to STAL with the production capacity of just over 80,000 metric tons per year. From input strip 1.5mm thick it will be able to roll strip down to 0.040mm and up to 1.2mm thick. Maximum strip width is 1,250mm, and the mill will be able to produce at the minimum thickness on the full width.

Terminal equipment for the mill will be produced locally by Fives’ subsidiary in China. The design of a mill that combines ultra-thickness and a full width is currently unique in the world. The new line and mill will produce ultra-thin stainless steels for high-end applications, such as smartphones and tablet computers.

Fives has been specializing in cold rolling mill design and manufacturing for more than 60 years, being a technological pioneer and a partner for many international steelmakers worldwide. In 2006, Fives already designed and delivered to Shanghai STAL a first 20Hi cold rolling mill for the same plant.