Abstract: A method for manufacturing a plate, a band, or a coil of hot-rolled steel is provided. The method includes providing an ingot or a slab of steel with a desired composition and a microstructure composed of austenite and 35 to 65% ferrite by volume and hot rolling the ingot or slab at a temperature between 1150 and 1280° C. to obtain a plate, a band or a coil. A method for manufacturing a hot-rolled bar or wire of steel, a steel profile and a forged steel piece are also provided.

Abstract: A method for manufacturing a plate, a band, or a coil of hot-rolled steel is provided. The method includes providing an ingot or a slab of steel with a desired composition and a microstructure composed of austenite and 35 to 65% ferrite by volume and hot rolling the ingot or slab at a temperature between 1150 and 1280° C. to obtain a plate, a band or a coil. A method for manufacturing a hot-rolled bar or wire of steel, a steel profile and a forged steel piece are also provided.

Abstract: The present invention provides an austenite-ferrite stainless steel. The steel composition contains in % by weight: 0.01%?C?0.10% 20.0%?Cr?24.0% 1.0%?Ni?3.0% 0.12%?N?0.20% 0.5%?Mn?2.0% 1.6%?Cu?3.0% 0.05%?Mo?1.0% W?0.15% 0.05%?Mo+W/2?1.0% 0.2%?Si?1.5% Al?0.05% V?0.5% Nb?0.5% Ti?0.5% B?0.003% Co?0.5% REM?0.1% Ca?0.03% Mg?0.1% Se?0.005% O?0.01% S?0.030% P?0.040% the rest being iron and impurities resulting from the production and the microstructure being composed of austenite and 35 to 65% ferrite by volume, the composition furthermore obeying the following relations: 40?IF?65 with IF=10% Cr+5.1% Mo+1.4% Mn+24.3% Si+35% Nb+71.5% Ti?595.4% C?245.1% N?9.3% Ni?3.3% Cu?99.8 and IRCGCU?32.0 with IRCGCU=% Cr+3.3% Mo+2% Cu+16% N+2.6% Ni?0.7% Mn and 0?IU?6.0 with IU=3% Ni+% Cu+% Mn?100% C?25% N?2(% Cr+% Si)?6% Mo+45 as well as a method of manufacture of plates, bands, coils, bars, wires, profiles, forged pieces and molded pieces of this steel.

Abstract: The invention concerns an austenite-ferrite stainless steel composition, whose composition contains in % by weight: 0.01%?C?0.10% 20.0%?Cr?24.0% 1.0%?Ni?3.0% 0.12%?N?0.20% 0.5%?Mn?2.0% 1.6%?Cu?3.0% 0.05% 5 Mo 5 1.0% W?0.15% 0.05%?Mo +W/2?1.0% 0.2%?Si?1.5% Al?0.05% V?0.5% Nb?0.5% Ti?0.5% B?0.003% Co?0.5% REM?0.1% Ca?0.03% Mg?0.1% Se?0.005% O?0.01% S?0.030% P?0.040% the rest being iron and impurities resulting from the production and the microstructure being composed of austenite and 35 to 65% ferrite by volume, the composition furthermore obeying the following relations: 40?IF?65 with IF=10%Cr+5.1%Mo+1.4%Mn+24.3%Si+35%Nb+71.5%Ti?595.4%C?245.1%N?9.3%Ni?3.3%Cu?99.8 and IRCGCU?32.0 with IRCGCU=%Cr+3.3%Mo+2%Cu+16%N+2.6%Ni?0.7%Mn and 0?IU?6.0 with IU=3%Ni+%Cu+%Mn?100%C?25%N?2(%Cr+%Si)?6%Mo+45 as well as a method of manufacture of plates, bands, coils, bars, wires, profiles, forged pieces and molded pieces of this steel.

Abstract: Ferritic stainless steel, comprising the following composition by weight: 0%<C?0.030% 1%?Si?3% 0%<Mn?0.5% 10%?Cr?13% 0%<Ni?0.5% 0%<Mo?3% N?0.030% Cu?0.5% Ti?0.5% Nb?1% Ca?1×10?4% 0?10×10?4% S?0.030% P?0.030% the remainder being iron and the impurities which are inevitable from the production of the steel.

Abstract: Ferritic stainless steel that can be used for ferromagnetic parts, characterized in that it comprises in its composition by weight: C?0.030% 1.0%<Si?3% 0.1%<Mn?0.5% 10%?Cr?13% 0%<Ni<1% 0.03%<S<0.5% 0%<P?0.030% 0.2%<Mo?2% 0%<Cu?0.5% 0%<N?0.030% 0%<Ti?0.5% 0%<Nb?1% 0%<Al?100×10?4% 30×10?4%<Ca?100×10?4% 50×10?4%<O?150×10?4% the ratio of the calcium content to the oxygen content Ca/O being 0.3?Ca/O?1, the balance being ion and the inevitable impurities from the smelting of the steel, and a process for manufacturing ferromagnetic parts.

Abstract: Austenitic alloy for high-temperature strength with improved pourability and manufacturing, of which the composition comprises, in weight-%: 0.010%<carbon<0.04% 0%<nitrogen<0.01% silicon<2% 16%<nickel<19.9% manganese<8% 18.1%<chromium<21% 1.8%<titanium<3% molybdenum<3% copper<3% aluminum<1.5% boron<0.01% vanadium<2% sulfur<0.2% phosphorous<0.04% and possibly up to 0.5% of at least one element chosen from among yttrium, cerium, lanthanum and other rare earths, the remainder being iron and impurities resulting from manufacturing or deoxidizing, the said composition also satisfying the two following relationships: in relationship to the solidification mode: remainder a=eq. Nia?0.5×eq. Cra<3.60 where eq. Cra=Cr+0.7×Si+0.2×Mn+1.37×Mo+3×Ti+6×Al+4×V, and where eq. Nia=Ni+22×C+0.5×Cu, in relationship to the rate of residual ferrite: remainder b=eq. Nib?2×eq. Crb>?41 where eq. Crb=Cr+0.7×Si+1.37×Mo+3×Ti+6×Al+4×V, and where eq. Nib=Ni+22×C+0.5×Cu+0.

Abstract: Ferritic stainless steel, comprising the following composition by weight: 0%<C≦0.030% 1%≦Si≦3% 0%<Mn≦0.5% 10%≦Cr≦13% 0%<Ni≦0.5% 0%<Mo≦3% N≦0.030% Cu≦0.5% Ti≦0.5% Nb≦1% Ca≧1×10−4% 0≧10×10−4% S≦0.030% P≦0.030% the remainder being iron and the impurities which are inevitable from the production of the steel.

Abstract: Ferritic stainless steel that can be used for ferromagnetic parts, characterized in that it comprises in its composition by weight:

Abstract: Austenitic alloy for high-temperature strength with improved pourability and manufacturing, procedure for manufacturing billets and wire

Abstract: Ferritic stainless steel, compirsing the following composition by weight: