Ugine Savoie

Xavier Cholin

Olivier Bletton

Pascal Terrien

Pierre Pedarre

The present invention relates to a resulfurized austenitic stainless steel with improved machinability, and which is especially useful in the field of machining at high cutting speed and in the field of bar turning.

Resulfurized austenitic 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.

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Albertville, France

Xavier Cholin