Thyssenkrupp Steel is planning to convert a continuous casting line at its Duisburg-Nord site amid changes to its offtake supplies for medium-wide strip steel.
A divider is to be installed, which will make it possible to cast the required narrow slabs, it explains. The necessary investment funds in the high double-digit million range have already been approved.
The steelmaker recently announced it will terminate the offtake of supplies from HKM after 2032.
The steelmaker has sourced narrow slabs produced by Duisburg mill HKM (Hüttenwerke Krupp-Mannesmann) to roll them at its Hohenlimburg site to medium-wide strip of 600mm width, used by automotive and other industrial customers.
According to a seasoned industry observer, medium-wide strip in the past used to be produced by various EU steelmakers. This has been widely replaced by normal-width strip, which is then slit into narrower strip.
“Making medium-wide strip with dedicated technology takes more effort, but it has advantages,” he tells Kallanish. For example, higher pressure can be exerted to roll harder steels with a higher carbon content, he says.
A spokeswoman at tk Steel concurs and notes that the final products are often small in terms of tonnage, but with tight tolerances when it comes to small precision parts, like blades, or certain parts used in cars.
Thyssenkrupp Steel is the only European steelmaker left to produce medium-wide strip on bespoke facilities, she says.
Christian Koehl Germany
