Abstract: The invention relates to a hot-rolled sheet made of austenitic stainless steel, the chemical composition of which comprises, the contents being expressed by weight: 0.015%?C?0.030%, 0.5%?Mn?2%, Si?2%, 16.5%?Cr?18%, 6%?Ni?7%, S?0.015%, P?0.045%, Al?0.050%, 0.15%?Nb?0.31%, 0.12%?N?0.16%, the Nb and N contents being such that: Nb/8+0.1%?N?Nb/8+0.12%, optionally: Mo?0.6%, 0.0005%?B?0.0025%, the balance of the composition consisting of iron and inevitable impurities resulting from the smelting.

Abstract: The invention relates to a process for manufacturing a semi-finished product made of stabilized stainless steel, which includes a casting step by means of a hollow jet nozzle placed between a tundish and a continuous casting mould. The nozzle comprises, in its upper part, a distributing member for deflecting the liquid metal arriving at the inlet of the nozzle, thus defining an internal volume with no liquid metal in the hollow jet. A non-stabilized stainless steel containing no nitride, carbide and carbonitride precipitates, is delivered in liquid metal form into the tundish. The liquid metal is cast by means of the nozzle, simultaneously carrying out an addition of metal powder into an internal volume of the hollow jet. The metal powder contains at least one element for stabilizing the stainless steel, the addition being carried out at a temperature between Tliquidus+10° C. and Tliquidus+40° C.

Abstract: Yoke formed by a stack of magnetic laminations 4 that have mutually parallel edge notches 7 with open lips, these being located at least in the corners of the inductor. These notches are preferably spaced apart by a few mm, but the separating interval may be higher, from 1 cm and beyond, without however exceeding about 5 cm. They start at the lamination edges and extend, preferably along straight lines, towards the interior over a distance that depends on the environment of the inductor. They are produced by removing material so that each notch 7 has non-touching lips (therefore open lips), even preferably at discrete points, so as to prevent offering bridges for the circulation of eddy currents thereat. The invention applies to the production of heating inductors, by controlling the thermal behaviour of the inductors by simple means that prevent them from overheating.

Abstract: Austenitic stainless steel for cold working suitable for later machining, characterized by the following composition by weight: carbon<0.030% 0.3%<silicon<1% 7%<manganese<9% 4.55%<nickel<7% molybdenum<0.8% 2%<copper<4% 0.02%<nitrogen<0.060% sulfur<0.01% phosphorus<0.