It is illustrated how computational modelling techniques are used atCorus RD&T as a means to investigate and improve fume emission,air quality and heat control throughout the steel processing route.Some of the recent areas that have benefited from such models are:the redesign of a coater line room, a storage and production facilityand fume capture during iron desulphurisation and casting. Themodelling techniques, the challenges of using such models and theresults are summarised.

The Business Intelligence (BI) aims at providing the operational, tacticand strategic levels with information in order to support managersand specialists through the practice of analysis and decisionmaking. The results of the project pertaining to the steel makingplant are reported.

At the present time roll shops are characterized by increasing automationand faster production cycles. Automatic quality inspection oftechnical processes as a part of quality management becomes evermore important. The integration of an inspection system within theautomatic program cycle of a roll grinder and the fast feedback ofthe inspection results lead to decreased scrap rates and advancedproduct qualities. On this account WALDRICH SIEGEN has developedthe new Roll Surface Inspection System RSIS.

Oil layer and surface roughness of steel strip are measured on-linewith equipment that has been adapted to withstand the severe environmentof a cold rolling mill. The system ensures the effective lubricationof the strip and it displays roughness data all along the coil.This makes it possible to optimize the rolling process on-line and itaffords comprehensive information on the strip properties.

Dross growing on immersed rolls is responsible for defects on thegalvanised strip. It is essential to identify the mechanism of thisaccumulation on immersed hardware. An industrial approach hasbeen followed: stainless steel samples (316L) were set up at severallocations on the moving rolls and on the static members through agalvanising campaign. The samples were then analysed by means ofoptical and electron microscopy. The results from this first approachpointed out significant effects of some factors referred to as “location” and “moving”. Further investigations, including a deeper analysisof several parameters, are requested to validate the proposedmechanisms.

Lean Duplex Stainless Steels (LDSS) have been used or are beingconsidered as substitutes for several well-established materials, invarious applications. This paper concentrates on AL 2003TM LDSS(UNS S32003) as a substitute for Type 316L stainless steel.Comparative data are presented including corrosion test data invarious media, mechanical test data, and design strength limits.Examples of applications are given.

The construction sector has an impact on our environment. InFrance for example, the building sector accounts for 40% of totalannual energy consumption and 22% of greenhouse gas emissions,and it generates more than 30 million tonnes of waste. The Frenchstandard content and its application to steel products are presented.