Henkel Kommanditgesellschaft Auf Aktien

Italsider S.p.a.

Acciai Speciali Terni, S.p.a.

Augusto Musso

Sandro Fortunati

Franco Mancia

Paolo Giordani

Massimo Memmi

Roberto Bruno

Yoannis Demertzis

Paolo Berardi

Stefano Trasatti

A process for electrolytic pickling of stainless steel of the ferritic, martensitic, austenitic and duplex series as well as superaustenitic and superferritic steels, nickel or Ni/Cr-based super alloys, and titanium and its alloys is provided. The process utilizes an electrolytic pickling solution containing H SO in a concentration of from 20 to 140 g/l and Fe ions in a concentration of from 15 to 80 g/l, the Fe ions being present a quantity corresponding to a Fe /Fe ratio of >1 and preferably >3.

Process for electrolytic pickling using nitric acid-free solutions

Method for pickling products made of steel, characterized in that within the pickling bath Fe is present, directly added in a controlled concentration, or produced in the pickling bath itself by adding an oxidizing agent such as hydrogen peroxide, ozone, permanganates. persulphates and oxygen.

Method for pickling steel products

The present invention relates to a zinc-based alloy for coating steel and products coated therewith. More exactly, the invention relates to a low-alloy zinc suitable for the continuous coating of steel, particularly in the form of sheet and wire, on Sendzimir coating lines and to the products coated with said alloy.

Zinc-based alloy for coating steel

Growing community of inventors

Rome, Italy

Augusto Musso