Abstract: Ferritic stainless steel which can be used for the production of steel wool, whose composition by weight is the following:carbon.ltoreq.0.2%,silicon.ltoreq.2%,manganese.ltoreq.2%,11%.ltoreq.chromium.ltoreq.30%,nickel.ltoreq.1%,sulfur.ltoreq.0.030,calcium.gtoreq..times.10.sup.-4 %,oxygen.gtoreq.40 .times.10.sup.-4 %,the calcium and oxygen contents satisfying the following relationship:0.2.ltoreq.Ca/O.ltoreq.0.7.

Abstract: The subject of the invention is a method of lubricating a mold (1) for the continuous casting of a metal product (16), of the type including a vigorously-cooled vertically-oscillating metal tubular element (2) defining a passage (4) for the cast metal and intended to cause, in contact with its wall (3) in said passage, the solidification of said metal product, in which a lubricant in the liquid state is injected through said metal tubular element toward said metal product being solidified, wherein said injection is carried out at points distributed annularly at a single level of said tubular element, said level lying at a distance greater than 20 cm from the lowest level at which solidification of said product is able to be initiated, and in that the flow rate of said lubricant is sufficient to cause a fraction of said lubricant to rise up along said wall to the level at which solidification of said product is effectively initiated.

Abstract: 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.

Abstract: Austenitic stainless steel for the production of wire, which can be used in the field of drawing to a diameter of less than 0.3 mm and in the field of producing parts subjected to wear.

Abstract: Ferritic stainless steel with improved machinability, which can be used especially in the field of screw machining, characterized by the following composition:C<0.17%Si<2.0%Mn<2.0%Cr[11-20] %Ni<1.0%S.ltoreq.0.55%Ca>30.times.10.sup.-4 %O>70.times.10.sup.-4 %the Ca/O ratio, between the calcium content and the oxygen content, being given by 0.2<Ca/O<0.6, the said steel being subjected, after rolling and cooling, to an annealing heat treatment giving it a ferritic structure.

Abstract: The subject of the invention is a martensitic stainless steel with improved machinability, characterized in that its weight composition is the following:carbon lower than 1.2%silicon lower than or equal to 2%manganese lower than or equal to 2%chromium: 10.5.ltoreq.Cr.ltoreq.19%sulphur lower than or equal to 0.55%calcium higher than 32.times.10.sup.-4 %oxygen higher than 70.times.10.sup.-4 %the ratio of the calcium and oxygen content Ca/O being 0.2.ltoreq.Ca/O.ltoreq.0.6, the said steel being subjected to at least one quenching heat treatment to give it a martensitic structure.

Abstract: 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.

Abstract: Resulphurized austenitic stainless steel with improved machinability, characterized in that its weight composition is the following:carbon lower than or equal to 0.15%silicon lower than or equal to 2%manganese lower than or equal to 2%molybdenum lower than or equal to 3%nickel between 7 and 12%chromium between 15 and 25%sulphur between 0.10 and 0.40%calcium higher than or equal to 30.times.10.sup.-4 %oxygen higher than or equal to 70.times.10.sup.-4 %the ratio of the calcium content and of the oxygen content Ca/O being between 0.2 and 0.6.