摘要:
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.
摘要翻译:本发明涉及一种奥氏体 - 铁素体不锈钢组合物,其组成包含重量%: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%其余为铁和杂质 生产和微观结构由奥氏体和35至65体积%的铁素体组成,其组成进一步遵循以下关系:IF = 10%时,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和IRCGCU> = 32.0,IRCGCU =%Cr + 3.3%Mo + 2%Cu + 16%N + 2.6% Ni-0.7%Mn和0 @ IU @ 6.0,IU = 3%Ni +%Cu +%Mn-100%C-25%N-2(%Cr +%Si)-6%Mo + 45以及制造方法 板,带,线圈,棒,电线,型材,锻造件和这种钢的模制件。
摘要:
Sheet having a multilayer structure, called a sandwich sheet, composed of two rolled metal skins which are joined together by a core, in which sheet the core contains a stainless steel wool.
摘要:
Ferritic stainless steel which resists oxidation at high temperature, of use in particular for a catalyst support structure, such as for example structures contained in the exhaust pipes of motor vehicles. This stainless steel comprises by weight:12 to 25% chromium, 4 to 7% aluminium, less than 0.03% carbon, less than 0.02% nitrogen, less than 0.22% nickel, less than 0.002% sulphur,less than 0.6% silicon, less than 0.4% manganese,the active elements selected from the group comprising cerium, lanthanum, neodymium, praseodymium, yttrium taken alone or in combination, at a content of lower than 0.08%, at least one stabilizing element selected from the group comprising zirconium and niobium,the zirconium and/or niobium contents satisfying the following conditions:for the zirconium,(C%/12+N%/14)-0.1.ltoreq.Zr.ltoreq.91 (C%/12+N%/14)+0.1for the niobium,93.times.0.8(C%/12)-0.1.ltoreq.Nb .ltoreq.93.times.0.8(C%/12)+0.15 and Nb
摘要翻译:耐高温氧化的铁素体不锈钢,尤其用于催化剂载体结构,例如包含在机动车辆的排气管中的结构。 该不锈钢包括重量比:12至25%的铬,4至7%的铝,小于0.03%的碳,小于0.02%的氮,小于0.22%的镍,小于0.002%的硫,小于0.6%的硅,较少的 选自包含铈,镧,钕,镨,钇的组合中的活性元素,其含量低于0.08%,至少一种选自锆和铌的稳定元素 ,锆和/或铌含量满足下列条件:对于锆,(C%/ 12 + N%/ 14)-0.1 Zr = 91(C%/ 12 + N%/ 14)+ 对于锆和铌,91(N(N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N %/ 14)-0.05 = Zr(N%/ 14)+0.05和93×0.8(C%/ 12)-0.05 Nb = 93×0.8(C%/ 12) +0.10。
摘要:
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.
摘要翻译:本发明涉及一种奥氏体 - 铁素体不锈钢组合物,其组成包含重量%: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%其余为铁和杂质 生产和微观结构由奥氏体和35至65体积%的铁素体组成,其组成进一步遵循以下关系:IF = 10%时,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和IRCGCU> = 32.0,IRCGCU =%Cr + 3.3%Mo + 2%Cu + 16%N + 2.6% Ni-0.7%Mn和0 @ IU @ 6.0,IU = 3%Ni +%Cu +%Mn-100%C-25%N-2(%Cr +%Si)-6%Mo + 45以及制造方法 板,带,线圈,棒,电线,型材,锻造件和这种钢的模制件。
摘要:
A process for coating a steel strip, particularly ferritic stainless steel, with aluminum by hot quenching, in which the strip is preheated to a temperature less than 500.degree. C. in a first non-oxidizing atmosphere containing a quantity of oxygen less than 3%, the strip is then heated to a temperature less than 950.degree. C. in a second non-oxidizing atmosphere, the strip is then conveyed to an atmosphere (3, 4) which is non-reactive at the coating temperature, and, finally, the strip is quenched in a coating bath.