Ugine Savoie

Other

Olivier Bletton

Pascal Terrien

Jean-Yves Cogne

Xavier Cholin

Roger Duet

Jacques Bayol

Luc Sollier

Frederic Descaves

Yves Guillot

Marc Henry

Process for producing a foaming slag above a stainless steel melted in an electric furnace

The subject of the invention is a martensitic stainless steel with improved machinability, characterized in that its weight composition is the following:

Martenstitic stainless steel with improved machinability

The weldable austenitic stainless steel having a high machinability and an improved cold deformation has the following composition by weight: C less than 0.1%; Si less than 2%; Mn less than 2%; S less than 0.03%; Ni between 8 and 10%; Cr between 15 and 25%; P less than or equal to 0.04%; Mo less than 0.5%; Cu between 1 and 5%; N between 0.02 and 0.07%; Ca more than 30.10.sup.31 4 %; 0 more than 70.10.sup.-4 %; Al less than 50.10.sup.-4 %; the ratio Ca/O being between 0.3 and 0.6.

Austenitic stainless steel having a high machinability and an improved

Resulphurized austenitic stainless steel with improved machinability, characterized in that its weight composition is the following:

Resulphurized austenitic stainless steel with improved machinability

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Ugine, France

Olivier Bletton