Abstract:
Procédé pour réduire les veines ségrégées d'un acier à haute résistance mécanique et haute résistance à l'usure dont la composition comprend, en poids : 0,30 % = C = 1,42 % ; 0,05 % = Si = 1,5 % ; Mn = 1,95 % ; Ni 2,9%; 1,1 % = Cr = 7,9 % ; 0,61 % = Mo 4,4 %; éventuellement V = 1,45 %, Nb = 1,45 %, Ta = 1,45 % et V+Nb/2 + Ta/4 = 1,45 %; moins de 0,1 % de bore, de 0,19 % de (S + Se/2 + Te/4), de 0,01% de calcium, de 0,5 % de terres rares, de 1 % d'aluminium, de 1 % de cuivre ; le reste étant de fer et des impuretés résultant de l'élaboration. La composition satisfaisait en outre : 800 = D = 1150 avec D = 540(C) 0,25 + 245 (Mo + 3 V + 1,5 Nb + 0,75 Ta) 0,30 + 125 Cr ,020 + 15,8 Mn + 7,4 Ni + 18 Si. Selon le procédé, on substitue tout ou partie du molybdène par une proportion double de tungstène de telle sorte que W > 0,21 %, et on ajuste Ti, Zr, C pour que, après ajustement, Ti + Zr/2 = 0,2 W, (Ti + Zr/2) X C = 0,07, Ti + Zr/2 = 1,49 % et D soit inchangé à 5 % près. Acier obtenu et procédé de fabrication d'une pièce en acier.
Abstract:
The invention relates to a duplex stainless steel composition consisting, in percent by weight, of: C 30.5, where IRCL = %Cr +3.3´%Mo +16´%N + 2.6´%Ni - 0.7´%Mn, and to a process for manufacturing plates, sheets, coils, bars, wires, sections, forgings and castings made of this steel.
Abstract translation:本发明涉及一种双重不锈钢组合物,其重量百分比为:C <0.05%; 21%= Cr <25%; 1%= Ni = 2.95%; 0.16%= N = 0.28%; Mn = 2.0%Mo + W / 2 = 0.50% Mo = 0.45% W <0.15%; Si <1.4%; Al <0.05%; 0.11%= Cu = 0.50%; S <0.010%; P = 0.040%; Co = 0.5%; REM = 0.1%; V = 0.5%; Ti = 0,1%; Nb = 0.3%; Mg <0.1%,其余为铁和冶炼产生的杂质,以及由奥氏体和35〜65体积%的铁素体组成的组织,其组成还满足以下关系:40 = IF <70,IF = 6' %Cr + 1.32'%Mo + 1.27'%Si)-10'(%Ni + 24'%C + 16.15'%N + 0.5'%Cu + 0.4'%Mn) - 6.17和IRCL> 30.5,其中IRCL = %Cr + 3.3'%Mo + 16'%N + 2.6'%Ni-0.7'%Mn,以及由该钢制成的板,片,线圈,棒,线,截面,锻件和铸件的方法。
Abstract:
Pièce de moules ou de carcasses de moules pour le moulage par injection de matières plastiques en acier inoxydable martensitique, trempé et revenu, dont la composition comprend, en % en poids : 0,02 % ≤ C ≤ 0,09 % 0,025 % ≤ N ≤ 0,12 % avec 0,05 % ≤ C + N ≤ 0,17 % Si ≤ 0,34 % Al ≤ 0,080 % avec Si + 23 Al ≥ 0,20 % et Si + 0,6 Al ≤ 0,25 % et 0,00025 ≤ AI x N ≤ 0,0020 0,55 % ≤ Mn ≤ 1 ,8 % 11 ,5 % ≤ Cr ≤ 16 % éventuellement jusqu'à 0,48 % de cuivre, jusqu'à 0,90 % de la somme Mo + W/2, jusqu'à 0,90 % de nickel, jusqu'à 0,090 % de vanadium, jusqu'à 0,090 % de niobium, jusqu'à 0,025 % de titane, éventuellement jusqu'à 0,25 % de soufre, le reste étant du fer et des impuretés résultant de l'élaboration, la composition satisfaisant, en outre, la condition : 6,5 ≤ F = (Cr + Mo) + 2 (Si + V + Nb) - 27 (C + N) - (Ni + Mn/2 + Cu/3) ≤ 13
Abstract translation:本发明涉及由淬火和回火的马氏体不锈钢制成的塑料材料注射成型的模具或模具框架部件,以重量计。 %,为:0.02%= C = 0.09%,0.025%= N = 0.12%,0.05%= C + N = 0.17% Si = 0.34%Al = 0.080%,Si + 23Al = 0.20%,Si + 0.6Al = 0.25% 并且0,00025 = Al x N = 0.0020 0; .55%= Mn = 1.8%; 11.5%= Cr = 16%,任意多达0.48%的铜,高达Mo + W / 2总和的0.90%,高达0.90%的镍,至多0.090%的钒,至多0.090%的铌 ,高达0.025%的钛,任选至多0.25的硫,其余为铁和衍生自制备的杂质,组成进一步满足条件:6.5 = F =(Cr + Mo)+ 2(Si + V + Nb) - 27(C + N) - (Ni + Mn / 2 + Cu / 3)= 13。
Abstract:
The invention concerns mould or mould frame parts for plastic material injection moulding made of quenched and tempered martensitic stainless steel consisting, in wt. %, of: 0.02 % = C = 0.09 %, 0.025 % = N = 0.12 % with 0.05 % = C + N = 0.17 %; Si = 0.34 % Al = 0.080 % with Si + 23 Al = 0.20 % and Si + 0.6 Al = 0.25 %; and 0,00025 = AI x N = 0.0020 0;.55 % = Mn = 1 .8 %; 11 .5 % = Cr = 16 % optionally up to 0.48 % of copper, up to 0.90 % of the sum Mo + W/2, up to 0.90 % of nickel, up to 0,090 % of vanadium, up to 0.090 % of niobium, up to 0.025 % of titanium, optionally up to 0.25 of sulphur, the rest being iron and impurities derived from preparation, the composition further satisfying the condition: 6.5 = F = (Cr + Mo) + 2 (Si + V + Nb) - 27 (C + N) - (Ni + Mn/2 + Cu/3) = 13.
Abstract translation:本发明涉及由淬火和回火马氏体不锈钢制成的用于塑料材料注射成型的模具或模具框架部件,以重量计。 %,为:0.02%= C = 0.09%,0.025%= N = 0.12%,0.05%= C + N = 0.17% Si = 0.34%Al = 0.080%,Si + 23Al = 0.20%,Si + 0.6Al = 0.25% 和0,00025 = Al x N = 0.0020 0; .55%= Mn = 1.8%; 11.5%= Cr = 16%,最多0.48%的铜,最高达Mo + W / 2的0.90%,高达0.90%的镍,至多0.090%的钒,至多0.090%的铌 ,高达0.025%的钛,任选至多0.25的硫,其余为铁和衍生自制备的杂质,该组成进一步满足条件:6.5 = F =(Cr + Mo)+ 2(Si + V + Nb) - 27(C + N) - (Ni + Mn / 2 + Cu / 3)= 13。
Abstract:
The invention relates to a steel with high mechanical strength and wear resistance. More specifically, the invention relates to a method of reducing the segregated veins of a steel having high mechanical strength, high wear resistance and the following weight composition: 0.30 % = C = 1.42 %; 0.05 % = Si = 1.5 %; Mn = 1.95 %; Ni = 2.9 %; 1.1 % = Cr = 7.9 %; 0.61 % = Mo = 4.4 %; optionally V = 1.45 %, Nb = 1.45 %, Ta = 1.45 % and V+Nb/2 + Ta/4 = 1.45 %; less than 0.1 % borium, 0.19 % (S + Se/2 + Te/4), 0.01 % calcium, 0.5 % rare earths, 1 % aluminium, 1 % copper; the remainder being iron and impurities resulting from the production thereof. The composition also comprises: 800 = D = 1150, where D = 540(C) + 245 (Mo + 3 V + 1.5 Nb + 0.75 Ta) + 125 Cr + 15.8 Mn + 7.4 Ni + 18 Si. According to the invention, all or part of the molydenum is replaced by a double proportion of tungsten, such that W > 0.21 %, and Ti, Zr, C are adjusted so that, after said adjustment, Ti + Zr/2 = 0.2 W, (Ti + Zr/2) X C = 0.07, Ti + Zr/2 = 1.49 % and D is unchanged at 5 %. The invention also relates to the steel obtained and to a method of producing a steel part.
Abstract translation:本发明涉及具有高机械强度和耐磨性的钢。 更具体地说,本发明涉及一种降低机械强度,高耐磨性和以下重量组成的钢的偏析静脉的方法:0.30%= C = 1.42% 0.05%= Si = 1.5%; Mn = 1.95% Ni = 2.9%; 1.1%= Cr = 7.9%; 0.61%= Mo = 4.4%; 可选地,V = 1.45%,Nb = 1.45%,Ta = 1.45%,V + Nb / 2 + Ta / 4 = 1.45% 小于0.1%的硼,0.19%(S + Se / 2 + Te / 4),0.01%的钙,0.5%的稀土,1%的铝,1%的铜; 其余为铁和由其生产产生的杂质。 组合物还包括:800 = D = 1150,其中D = 540(C)<0.25> + 245(Mo + 3 V + 1.5 Nb + 0.75 Ta)<0.30> + 125 Cr <0.20> + 15.8 Mn + 7.4 Ni + 18 Si。 根据本发明,全部或部分钼矿被双重比例的钨替代,使得W> 0.21%,并且调节Ti,Zr,C,使得在所述调整之后,Ti + Zr / 2 = 0.2W ,(Ti + Zr / 2)XC = 0.07,Ti + Zr / 2 = 1.49%,D在5%不变。 本发明还涉及所获得的钢和制造钢部件的方法。
Abstract:
The invention concerns weldable steel building components whereof the chemical composition comprises, by weight: 0.10 % + 283)}, the silicon and aluminium contents of the composition additionally verifying the following conditions: if C > 0.145, then Si + AI
Abstract translation:本发明涉及可焊接的钢结构构件,其化学组成按重量计包含:0.10% = 0.02%,0.50% = Si = 1.50%,AI <= 0.9%,0 % = Mn = 3%,0% = Ni = 5%,0% = Cr = 4%,0% / = Mo + W / 2 = 1.5%,0.0005% B = 0.010%,N <0.025%,任选地至少一种选自V,Nb,Ta,S和Ca中的元素,含量少 0.3%以上,和/或Ti和Zr含量不超过0.5%,其余为铁和由制备产生的杂质,所述组合物中以千分之一%表示的铝,硼,钛和氮含量进一步满足 K = Min(1 *; J *),I * = Max(0; I)和J * = Max(0; J)中的以下关系:B = 1/3×K + 0.5,(1) I = Min(N; N-0.29(Ti-5)),J = Min {N; 0.5(N 0.52 AI + 2ROOT j(N 0.52 AI)2 + 283)},组合物的硅和铝含量另外验证了以下条件:如果C> 0.145,则Si + Al <0.95,其结构 是贝氏体,马氏体或马氏体/贝氏体,并且还包含3〜20%的残余奥氏体。
Abstract:
The invention relates to a duplex stainless steel composition consisting, in percent by weight, of: C 30.5, where IRCL = %Cr +3.3´%Mo +16´%N + 2.6´%Ni - 0.7´%Mn, and to a process for manufacturing plates, sheets, coils, bars, wires, sections, forgings and castings made of this steel.
Abstract translation:本发明涉及一种双重不锈钢组合物,其重量百分比为:C <0.05%; 21%= Cr <25%; 1%= Ni = 2.95%; 0.16%= N = 0.28%; Mn = 2.0%Mo + W / 2 = 0.50% Mo = 0.45% W <0.15%; Si <1.4%; Al <0.05%; 0.11%= Cu = 0.50%; S <0.010%; P = 0.040%; Co = 0.5%; REM = 0.1%; V = 0.5%; Ti = 0,1%; Nb = 0.3%; Mg <0.1%,其余为铁和冶炼产生的杂质,以及由奥氏体和35〜65体积%的铁素体组成的组织,其组成还满足以下关系:40 = IF <70,IF = 6' %Cr + 1.32'%Mo + 1.27'%Si)-10'(%Ni + 24'%C + 16.15'%N + 0.5'%Cu + 0.4'%Mn) - 6.17和IRCL> 30.5,其中IRCL = %Cr + 3.3'%Mo + 16'%N + 2.6'%Ni-0.7'%Mn,以及由该钢制成的板,片,线圈,棒,线,截面,锻件和铸件的方法。
Abstract:
L'invention concerne une composition d'acier inoxydable duplex, dont la composition est constituée de, en % en poids : C 30,5 avec IRCL = %Cr +3,3 x %Mo +16 x %N + 2,6 x %Ni - 0,7 x %Mn ainsi qu'un procédé de fabrication de tôles, bandes, bobines, barres, fils, profilés, pièces forgées, pièces moulées en cet acier.
Abstract:
The invention concerns a method for making an abrasion resistant steel plate having a chemical composition comprising, by weight: 0.24 % + K > 1.8, with K = 0.5 if B between temperature T and 100 DEG C (ep = plate temperature expressed in mm); cooling the plate down to room temperature and, optionally planishing. The invention also concerns the resulting plate.
Abstract translation:本发明涉及一种制备具有化学组成的耐磨钢板的方法,该组合物包含:0.24%(重量):C = 0.35%; 0% = Si = 2%; 0% = AI = 2%; 0.5% = Si + AI = 2%; 0% = Mn = 2.5%; 0% = Ni = 5%; 0% = Cr = <5%; 0% = Mo = 1%; 0% = W = 2%; 0.1% = Mo + W / 2 = 1%; 0% = B = 0.02%; 0% = Ti = 1.1%; 0%Zr = 2.2%; 0.35% = Ti + Zr / 2 = 1.1%; 0% = S <0.15%; N <0.03%,任选0%至1.5%的铜; 可选地,选自Nb,Ta和V中的至少一种元素的含量使得Nb / 2 + Ta / 4 + V <0.5%; 可选地,选自Te,Ca,Bi,Pb中的至少一种元素含量不超过0.1%; 其余为铁和由制备产生的杂质,而且化学成分满足以下关系:0.095% = C * = C-Ti / 4-Zr / 8 + 7xN / 8和1.05xMn + 0.454Ni + 0.50 如果B <0.0005%,则K = 0.5,如果B <0.0005%,则K = 0,xCr + 0.3x(Mo + W / 2)<112> + K> 1.8。 该方法包括在板中进行硬化,滚动加热或在炉中奥氏体化后; 在高于AC3的温度和T = 800〜270×C *〜90×Mn-37×Ni-70×Cr-83×(Mo + W / 2)和T-50之间的温度范围内以大于0.5℃/ s的冷却速度冷却板 ℃; 然后在温度T和100℃之间的核心冷却速度Vr <1150XEP <-1.7℃下冷却板(ep =板温度,以mm表示); 将板冷却至室温,并可选择平整。 本发明还涉及所得板。