WELDABLE COMPONENT OF STRUCTURAL STEEL AND METHOD OF MANUFACTURE

    公开(公告)号:US20200332402A1

    公开(公告)日:2020-10-22

    申请号:US16923163

    申请日:2020-07-08

    申请人: INDUSTEEL CREUSOT

    IPC分类号: C22C38/54 C21D1/18

    摘要: A method for manufacturing a weldable steel component having a chemical composition including, by weight: 0.40%≤C≤0.45%; 0.75%≤Si≤1.50%; 0.3%≤Mn≤3%; 0%≤Ni≤5%; 1.11%≤Cr≤4%; 0%≤Cu≤1%; 0.410%≤Mo≤1.5%; 0.410%≤Mo+W/2≤1.5%; 0.038%≤Nb≤0.3%; 0.0005%≤B≤0.010%; 0.006%≤N≤0.025%; Al≤0.9%; Si+Al≤2.0%, optionally at least one element selected among V, Nb, Ta, S and Ca, in contents less than 0.3%, and among Ti and Zr in contents not more than 0.5%, the rest being iron and impurities resulting from the preparation, the aluminium, boron, titanium and nitrogen contents, expressed in thousandths of %, of said composition further satisfying the following relationship: B≥⅓×K+0.5, (1) with K=Min (I*; J*), I*=Max (0; 1), and J*=Max (0; J), I=Min(N; N−0.29(Ti−5)), J=Min(N; 0.5(N−0.52 Al+√{square root over ((N−0.52 Al)2+283)})), and whereof the structure is bainitic, martensitic or martensitic/bainitic and additionally comprises 3 to 20% of residual austenite.

    Steel Having High Mechanical Strength and Wear Resistance
    3.
    发明申请
    Steel Having High Mechanical Strength and Wear Resistance 有权
    具有高机械强度和耐磨性的钢

    公开(公告)号:US20100221139A1

    公开(公告)日:2010-09-02

    申请号:US12776539

    申请日:2010-05-10

    摘要: Method for reducing the segregated seams of a steel which has high mechanical strength and high wear resistance and whose composition comprises by weight: 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% of boron, less than 0.19% of (S+Se/2+Te/4), less than 0.01% of calcium, less than 0.5% of rare earths, less than 1% of aluminum, less than 1% of copper; the balance being iron and impurities resulting from the production operation. The composition further complies with: 800≦D≦1150 with D=540(C)0.25+245(Mo+3V+1.5Nb+0.75Ta)0.30+125Cr0.20+15.8Mn+7.4Ni+18Si. According to the method, the molybdenum is completely or partially replaced with double the proportion of tungsten so that W>0.21%, and Ti, Zr, C are adjusted so that, after adjustment, Ti+Zr/2≧0.2W, (Ti+Zr/2)×C≧0.07, Ti+Zr/2≦1.49% and D is unchanged at approximately 5%. Steel obtained and method for producing a steel workpiece.

    摘要翻译: 具有高机械强度和高耐磨性的钢的偏析接缝的减少方法,其组成按重量计包含:0.30%& NlE; C< lE; 1.42%; 0.05%≦̸ Si≦̸ 1.5%; Mn≦̸ 1.95%; Ni≦̸ 2.9%; 1.1%≦̸ Cr≦̸ 7.9%; 0.61%≦̸ Mo≦̸ 4.4%; 任选的V< ll; 1.45%,Nb≦̸ 1.45%,Ta& NlE; 1.45%和V + Nb / 2 + Ta / 4≦̸ 1.45% 小于0.1%的硼,小于0.19%(S + Se / 2 + Te / 4),小于0.01%的钙,小于0.5%的稀土,小于1%的铝,小于1% 的铜; 余量由生产操作产生的铁和杂质。 该组合物还符合:800和nlE; D≦̸ 1150,D = 540(C)0.25 + 245(Mo + 3V + 1.5Nb + 0.75Ta)0.30 + 125Cr0.20 + 15.8Mn + 7.4Ni + 18Si。 根据该方法,将钼完全或部分替换为钨的比例的两倍,使得W> 0.21%,并且调整Ti,Zr,C,使得在调整后,Ti + Zr /2≥0.2W,(Ti + Zr / 2)×C≥0.07,Ti + Zr / 2≦̸ 1.49%,D为约5%。 获得的钢和制造钢工件的方法。

    Method for Making an Abrasion-Resistant Steel Plate and Plate Obtained
    5.
    发明申请
    Method for Making an Abrasion-Resistant Steel Plate and Plate Obtained 失效
    获得耐磨钢板和板材的方法

    公开(公告)号:US20080253920A1

    公开(公告)日:2008-10-16

    申请号:US12140433

    申请日:2008-06-17

    IPC分类号: C22C38/44 C22C38/54 C22C38/50

    摘要: The invention concerns a method for making an abrasion resistant steel plate having a chemical composition comprising: 0.35%≦C≦0.8%, 0%≦Si≦2%, 0%≦Al≦2%, 0.35%≦Si+Al≦2%, 0%≦Mn≦2.5%, 0%≦Ni≦5%, 0%≦Cr≦5%, 0%≦Mo≦0.50%, 0%≦W≦1.00%, 0.1%≦Mo+W/2≦0.50%, 0%≦B≦0.02%, 0%≦Ti≦2%, 0%≦Zr≦4%, 0.05%≦Ti+Zr/2≦2%, 0%≦S≦0.15%, N 1.8, with K=0.5 if B≧0.0005% and K=0 if B 0.5° C./s between a temperature>AC3 and ranging between T=800−270×C*−90×Mn−37×Ni−70×Cr−83×(Mo+W/2) and T−50° C.; then at a core speed Vr

    摘要翻译: 本发明涉及一种制备具有化学组成的耐磨钢板的方法,包括:0.35%<= C <= 0.8%,0%<= Si <= 2%,0%<= Al <= 2%,0.35% <= Si + Al <= 2%,0%<= Mn <= 2.5%,0%<= Ni <= 5%,0%≤Cr≤5%,0%<= Mo < 0%<= W <= 1.00%,0.1%<= Mo + W / 2 <= 0.50%,0%<= B <= 0.02%,0%<= Ti <= 2% = 4%,0.05%<= Ti + Zr / 2 <= 2%,0%<= S <= 0.15%,N <0.03% 任选地从0%到1.5%的Cu; Nb,Ta或V,Nb / 2 + Ta / 4 + V <= 0.5%; 可选地小于Se,Te,Ca,Bi或Pb的0.1% 其余为铁和杂质; 该组成满足:0.1%<= C * = C-Ti / 4-Zr / 8 + 7xN / 8 <= 0.55%和1.05×Mn + 0.54×Ni + 0.50×Cr + 0.3×(Mo + W / 2) 如果B> = 0.0005%,K = 0.5,如果B <0.0005%和Ti + Zr / 2-7xN / 2> = 0.05%,K = 0; 在温度> AC 3〜3℃之间,以T = 800〜270×C * -90×Mn-37×Ni-70×Cr-83×(Mo + W / W)之间的范围内以> 0.5℃/ s的速度进行奥氏体化时的硬化, 2)和T-50℃。 然后在T和100℃之间的核心速度Vr <115×EP <-1.7 ,(ep =板厚度,mm); 冷却至室温。 本发明还涉及所得板。

    Abrasion-resistant steel plate
    6.
    发明授权
    Abrasion-resistant steel plate 有权
    耐磨钢板

    公开(公告)号:US07998285B2

    公开(公告)日:2011-08-16

    申请号:US12141327

    申请日:2008-06-18

    摘要: The invention concerns a method for making an abrasion resistant steel plate having a chemical composition comprising: 0.1%≦C 1.8, with K=1 if B≧0.0005% and K=0 if B 0.5° C./s between a temperature between AC3 and T=800−270×C*−90×Mn−37×Ni−70×Cr−83×(Mo+W/2) and about T−50° C.; then cooling at a speed 0.1

    摘要翻译: 本发明涉及一种制备具有化学组成的耐磨钢板的方法,该组合物包括:0.1%&lt; NlE; C <0.23%; 0%&nlE; Si&nlE; 2%; 0%&nlE; Al&nlE; 2%; 0.5%&nlE; Si + Al&nlE; 2%; 0%&nlE; Mn&nlE; 2.5%; 0%&nlE; Ni&nlE; 5%; 0%&nlE; Cr&nlE; 5%; 0%&nlE; Mo&nlE; 1%; 0%&nlE; W&nlE; 2%; 0.05%&nlE; Mo + W / 2&nlE; 1%; 0%&nlE; Cu&nlE; 1.5%; 0%&nlE; B&nlE; 0.02%; 0%&nlE; Ti&nlE; 0.67%; 0%&nlE; Zr&nlE; 1.34%; 0.05% 1.8,如果B≥0.0005%,则K = 1,如果B <0.0005%,则K = 0。 在奥氏体化后,该方法包括:在AC3和T = 800-270×C * -90×Mn-37×Ni-70×Cr-83×(Mo)之间的温度下以> 0.5℃/ s的速度冷却 + W / 2)和约T-50℃。 然后在T和100℃之间以0.1

    Method for making an abrasion-resistant steel plate
    8.
    发明授权
    Method for making an abrasion-resistant steel plate 有权
    制造耐磨钢板的方法

    公开(公告)号:US07459041B2

    公开(公告)日:2008-12-02

    申请号:US10535418

    申请日:2003-11-13

    IPC分类号: C21D8/02 C21D9/00

    摘要: The invention concerns a method for making an abrasion resistant steel plate having a chemical composition comprising: 0.35%≦C≦0.8%, 0%≦Si≦2%; 0%≦AI≦2%; 0.35%≦Si+AI≦2%; 0%≦Mn≦2.5%; 0%≦Ni≦5%; 0% ≦Cr≦5%; 0%≦Mo≦0.050; 0%≦W≦1%; 0,1%≦Mo+W/2≦0.5%; 0%≦B≦0.02%; 0%≦Ti≦2%; 0%≦Zr≦4%; 0.05%≦Ti+Zr/2≦2%; 0%≦S≦0.15%; N≦0,03; optionally 0% to 1.5% of Cu; optionally Nb, Ta or V with Nb/2+Ta/4 +V≦0.5%; optionally less than 0.1% of Se, Te, Ca, Bi or Pb; the rest being iron and impurities; the composition satisfying: 0.1 % 1.8, with K=0.5 if B ≧0.0005% and K=0 if B 0.5 ° C./s between a temperature >AC3 and ranging between T=800−270×C*−9O×Mn−37×Ni−70×Cr−83×(Mo+W/2) and T−50° C.; then at a core speed Vr

    摘要翻译: 本发明涉及一种制备具有化学组成的耐磨钢板的方法,包括:0.35%<= C <= 0.8%,0%<= Si <= 2%; 0%<= AI <= 2%; 0.35%<= Si + AI <= 2%; 0%<= Mn <= 2.5%; 0%<= Ni <= 5%; 0%<= Cr <= 5%; 0%<= Mo <= 0.050; 0%<= W <= 1%; 0,1%<= Mo + W / 2 <= 0.5%; 0%<= B <= 0.02% 0%<= Ti <= 2%; 0%<= Zr <= 4%; 0.05%<= Ti + Zr / 2 <= 2%; 0%<= S <= 0.15%; N <= 0,03; 任选0%至1.5%的Cu; Nb,Ta或V,Nb / 2 + Ta / 4 + V <= 0.5%; 可选地小于Se,Te,Ca,Bi或Pb的0.1% 其余为铁和杂质; 该组合物满足:0.1% 1.8,如果B> = 0.0005%,K = 0.5,如果B <0.0005%和Ti + Zr / 2-7xN / 2> = 0.05%,K = 0。 在温度> AC3和T = 800-270×C * -9OxMn-37xNi-70xCr-83x(Mo + W / 2)和T-50℃之间的范围内以> 0.5℃/ s的速度冷却后奥氏体化后硬化 。 然后在T和100℃之间的核心速度Vr <1150xep-1.7,(ep =板厚度(mm)); 冷却至室温。 本发明还涉及所得板。

    Steel Having High Mechanical Strenght And Wear Resistance
    9.
    发明申请
    Steel Having High Mechanical Strenght And Wear Resistance 有权
    具有高机械强度和耐磨性的钢

    公开(公告)号:US20080159901A1

    公开(公告)日:2008-07-03

    申请号:US11569379

    申请日:2005-05-12

    摘要: Method for reducing the segregated seams of a steel which has high mechanical strength and high wear resistance and whose composition comprises by weight: 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% of boron, less than 0.19% of (S+Se/2+Te/4), less than 0.01% of calcium, less than 0.5% of rare earths, less than 1% of aluminum, less than 1% of copper; the balance being iron and impurities resulting from the production operation. The composition further complies with: 800≦D≦1150 with D=540(C)0.25+245 (Mo+3 V+1.5 Nb+0.75 Ta)0.30+125 Cr0.20+15.8 Mn+7.4 Ni+18 Si. According to the method, the molybdenum is completely or partially replaced with double the proportion of tungsten so that W>0.21%, and Ti, Zr, C are adjusted so that, after adjustment, Ti+Zr/2≧0.2 W, (Ti+Zr/2)×C≧0.07, Ti+Zr/2≦1.49% and D is unchanged at approximately 5%. Steel obtained and method for producing a steel workpiece.

    摘要翻译: 具有高机械强度和高耐磨性的钢的偏析接缝的减少方法,其组成按重量计: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%; 任选地V <= 1.45%,Nb <= 1.45%,Ta <= 1.45%,V + Nb / 2 + Ta / 4 <= 1.45% 小于0.1%的硼,小于0.19%(S + Se / 2 + Te / 4),小于0.01%的钙,小于0.5%的稀土,小于1%的铝,小于1% 的铜; 余量由生产操作产生的铁和杂质。 该组合物进一步符合:800 <= D <= 1150,其中D = 540(℃)0.25 +245(Mo + 3V + 1.5Nb + 0.75Ta)0.30 + 125 Cr 0.20 + 15.8 Mn + 7.4 Ni + 18 Si。 根据该方法,将钼完全或部分替换为钨的比例的两倍,使得W> 0.21%,并且调整Ti,Zr,C,使得在调整后Ti + Zr / 2> = 0.2W,( Ti + Zr / 2)xC> = 0.07,Ti + Zr / 2 = 1.49%,D不变大约为5%。 获得的钢和制造钢工件的方法。

    Steel having high mechanical strength and wear resistance
    10.
    发明授权
    Steel having high mechanical strength and wear resistance 有权
    钢具有高机械强度和耐磨性

    公开(公告)号:US08097207B2

    公开(公告)日:2012-01-17

    申请号:US12776539

    申请日:2010-05-10

    IPC分类号: C22C38/22 C22C38/44 C21D8/00

    摘要: Method for reducing the segregated seams of a steel which has high mechanical strength and high wear resistance and whose composition comprises by weight: 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% of boron, less than 0.19% of (S+Se/2+Te/4), less than 0.01% of calcium, less than 0.5% of rare earths, less than 1% of aluminum, less than 1% of copper; the balance being iron and impurities resulting from the production operation. The composition further complies with: 800≦D≦1150 with D=540(C)0.25+245(Mo+3V+1.5Nb+0.75Ta)0.30+125Cr0.20+15.8Mn+7.4Ni+18Si. According to the method, the molybdenum is completely or partially replaced with double the proportion of tungsten so that W>0.21%, and Ti, Zr, C are adjusted so that, after adjustment, Ti+Zr/2≧0.2W, (Ti+Zr/2)×C≧0.07, Ti+Zr/2≦1.49% and D is unchanged at approximately 5%. Steel obtained and method for producing a steel workpiece.

    摘要翻译: 具有高机械强度和高耐磨性的钢的偏析接缝的减少方法,其组成按重量计包含:0.30%&amp; NlE; C&lt; lE; 1.42%; 0.05%&nlE; Si&nlE; 1.5%; Mn&nlE; 1.95%; Ni&nlE; 2.9%; 1.1%&nlE; Cr&nlE; 7.9%; 0.61%&nlE; Mo&nlE; 4.4%; 任选的V&lt; ll; 1.45%,Nb&nlE; 1.45%,Ta&amp; NlE; 1.45%和V + Nb / 2 + Ta / 4&nlE; 1.45% 小于0.1%的硼,小于0.19%(S + Se / 2 + Te / 4),小于0.01%的钙,小于0.5%的稀土,小于1%的铝,小于1% 的铜; 余量由生产操作产生的铁和杂质。 该组合物还符合:800和nlE; D&nlE; 1150,D = 540(C)0.25 + 245(Mo + 3V + 1.5Nb + 0.75Ta)0.30 + 125Cr0.20 + 15.8Mn + 7.4Ni + 18Si。 根据该方法,将钼完全或部分替换为钨的比例的两倍,使得W> 0.21%,并且调整Ti,Zr,C,使得在调整后,Ti + Zr /2≥0.2W,(Ti + Zr / 2)×C≥0.07,Ti + Zr / 2&nlE; 1.49%,D为约5%。 获得的钢和制造钢工件的方法。