Austenitic heat resistant alloy
    1.
    发明授权
    Austenitic heat resistant alloy 有权
    奥氏体耐热合金

    公开(公告)号:US08313591B2

    公开(公告)日:2012-11-20

    申请号:US12647028

    申请日:2009-12-24

    IPC分类号: C22C30/00 C22C19/05

    摘要: An austenitic heat resistant alloy, which contains, by mass percent, C≦0.15%, Si≦2%, Mn≦3%, Ni: 40 to 80%, Cr: 15 to 40%, W and Mo: 1 to 15% in total content, Ti≦3%, Al≦3%, N≦0.03%, O≦0.03%, with the balance being Fe and impurities, and among the impurities P≦0.04%, S≦0.03%, Sn≦0.1%, As≦0.01%, Zn≦0.01%, Pb≦0.01% and Sb≦0.01%, and satisfies the conditions [P1=S+{(P+Sn)/2}+{(As+Zn+Pb+Sb)/5}≦0.050], [0.2≦P2=Ti+2Al≦7.5−10×P1], [P2≦9.0−100×O] and [N≦0.002×P2+0.019] can prevent both the liquation crack in the HAZ and the brittle crack in the HAZ and also can prevent defects due to welding fabricability, which occur during welding fabrication, and moreover has excellent creep strength at high temperatures. Therefore, the alloy can be used suitably as a material for constructing high temperature machines and equipment, such as power generating boilers, plants for the chemical industry and so on. The ally may contain a specific amount or amounts of one or more elements selected from Co, B, Ta, Hf, Nb, Zr, Ca, Mg, Y, La, Ce and Nd.

    摘要翻译: 一种奥氏体耐热合金,以质量%计含有0.15%,Si&NlE; 2%,Mn&NlE; 3%,Ni:40〜80%,Cr:15〜40%,W和Mo:1〜15% 在总含量中,Ti&NlE; 3%,Al&NlE; 3%,N& NlE; 0.03%,O&NlE; 0.03%,余量为Fe和杂质,杂质P< L; 0.04%,S&NlE; 0.03%,Sn& ,As / nlE; 0.01%,Zn和nlE; 0.01%,Pb和nlE; 0.01%和Sb≦̸ 0.01%,满足条件[P1 = S + {(P + Sn)/ 2} + {(As + Zn + Pb + Sb)/ 5}≦̸ 0.050],[0.2≦̸ P2 = Ti + 2Al≦̸ 7.5-10×P1],[P2≦̸ 9.0-100×O]和[N< lE; 0.002×P2 + 0.019]可以防止液化裂纹 HAZ和HAZ中的脆性裂纹,并且还可以防止在焊接制造期间发生的焊接可制造性的缺陷,并且还在高温下具有优异的蠕变强度。 因此,该合金可以适当地用作构成发电锅炉,化工工业用等的高温机器和设备的材料。 盟友可以含有一定量或数量的选自Co,B,Ta,Hf,Nb,Zr,Ca,Mg,Y,La,Ce和Nd中的一种或多种元素。

    AUSTENITIC HEAT RESISTANT ALLOY
    2.
    发明申请
    AUSTENITIC HEAT RESISTANT ALLOY 有权
    奥氏体耐热合金

    公开(公告)号:US20100166594A1

    公开(公告)日:2010-07-01

    申请号:US12647028

    申请日:2009-12-24

    摘要: An austenitic heat resistant alloy, which comprises, by mass percent, C≦0.15%, Si≦2%, Mn≦3%, Ni: 40 to 80%, Cr: 15 to 40%, W and Mo: 1 to 15% in total content, Ti≦3%, Al≦3%, N≦0.03%, O≦0.03%, with the balance being Fe and impurities, and among the impurities P≦0.04%, S≦0.03%, Sn≦0.1%, As≦0.01%, Zn≦0.01%, Pb≦0.01% and Sb≦0.01%, and satisfies the conditions [P1=S+{(P+Sn)/2}+{(As+Zn+Pb+Sb)/5}≦0.050], [0.2≦P2=Ti+2Al≦7.5−10×P1], [P2≦9.0−100×O] and [N≦0.002×P2+0.019] can prevent both the liquation crack in the HAZ and the brittle crack in the HAZ and also can prevent defects due to welding fabricability, which occur during welding fabrication, and moreover has excellent creep strength at high temperatures. Therefore, the alloy can be used suitably as a material for constructing high temperature machines and equipment, such as power generating boilers, plants for the chemical industry and so on. The ally may contain a specific amount or amounts of one or more elements selected from Co, B, Ta, Hf, Nb, Zr, Ca, Mg, Y, La, Ce and Nd.

    摘要翻译: 一种奥氏体系耐热合金,以质量%计含有0.15%,Si&NlE; 2%,Mn&NlE; 3%,Ni:40〜80%,Cr:15〜40%,W:1〜15% 在总含量中,Ti&NlE; 3%,Al&NlE; 3%,N& NlE; 0.03%,O&NlE; 0.03%,余量为Fe和杂质,杂质P< L; 0.04%,S&NlE; 0.03%,Sn& ,As / nlE; 0.01%,Zn和nlE; 0.01%,Pb和nlE; 0.01%和Sb≦̸ 0.01%,满足条件[P1 = S + {(P + Sn)/ 2} + {(As + Zn + Pb + Sb)/ 5}≦̸ 0.050],[0.2≦̸ P2 = Ti + 2Al≦̸ 7.5-10×P1],[P2≦̸ 9.0-100×O]和[N< lE; 0.002×P2 + 0.019]可以防止液化裂纹 HAZ和HAZ中的脆性裂纹,并且还可以防止在焊接制造期间发生的焊接可制造性的缺陷,并且还在高温下具有优异的蠕变强度。 因此,该合金可以适当地用作构成发电锅炉,化工工业用等的高温机器和设备的材料。 盟友可以含有一定量或数量的选自Co,B,Ta,Hf,Nb,Zr,Ca,Mg,Y,La,Ce和Nd中的一种或多种元素。

    Ni-base heat resistant alloy
    3.
    发明授权
    Ni-base heat resistant alloy 有权
    镍基耐热合金

    公开(公告)号:US08293169B2

    公开(公告)日:2012-10-23

    申请号:US13070689

    申请日:2011-03-24

    IPC分类号: C22C19/05

    CPC分类号: C22C19/055 C22C19/056

    摘要: A high strength, ductile, and tough Ni-base heat resistant alloy comprises by mass percent, C: 0.1% or less, Si: 1% or less, Mn: 1% or less, Cr: not less than 15% to less than 28%, Fe: 15% or less, W: more than 5% to not more than 20%, Al: more than 0.5% to not more than 2%, Ti: more than 0.5% to not more than 2%, Nd: 0.001 to 0.1% and B: 0.0005 to 0.01%, with the balance being Ni and impurities. Impurity contents of P, S, Sn, Pb, Sb, Zn and As are P: 0.03% or less, S: 0.01% or less, Sn: 0.020% or less, Pb: 0.010% or less, Sb: 0.005% or less, Zn: 0.005% or less and As: 0.005% or less, and formulas of [0.015≦Nd+13.4×B≦0.13], [Sn+Pb≦0.025] and [Sb+Zn +As≦0.010] are met.

    摘要翻译: 高强度,延性和韧性的Ni基耐热合金,以质量%计,C:0.1%以下,Si:1%以下,Mn:1%以下,Cr:15%以上,小于 28%,Fe:15%以下,W:5%以上20%以下,Al:0.5%以上2%以下,Ti:0.5%以上且2%以下,Nd :0.001〜0.1%,B:0.0005〜0.01%,余量为Ni和杂质。 P,S,Sn,Pb,Sb,Zn和As的杂质含量P:0.03%以下,S:0.01%以下,Sn:0.020%以下,Pb:0.010%以下,Sb:0.005% 较少,Zn:0.005%以下,As:0.005%以下,[0.015≦̸ Nd + 13.4×B≦̸ 0.13],[Sn + Pb≦̸ 0.025]和[Sb + Zn + As≦̸ 0.025] 见面

    Ni-based alloy product and producing method thereof
    4.
    发明授权
    Ni-based alloy product and producing method thereof 有权
    镍基合金产品及其制备方法

    公开(公告)号:US08801876B2

    公开(公告)日:2014-08-12

    申请号:US13420918

    申请日:2012-03-15

    IPC分类号: C21D11/00 C22C19/05 C22C30/00

    CPC分类号: C22F1/10 C22C19/05 C22F1/00

    摘要: [Problem to be Solved]A Ni-based alloy product consisting of, by mass percent, C: 0.03 to 0.10%, Si: 0.05 to 1.0%, Mn: 0.1 to 1.5%, Sol.Al: 0.0005 to 0.04%, Fe: 20 to 30%, Cr: not less than 21.0% and less than 25.0%, W: exceeding 6.0% and not more than 9.0%, Ti: 0.05 to 0.2%, Nb: 0.05 to 0.35%, and B: 0.0005 to 0.006%, the balance being Ni and impurities, the impurities being P: 0.03% or less, S: 0.01% or less, N: less than 0.010%, Mo: less than 0.5%, and Co: 0.8% or less, wherein a value of effective B (Beff) defined by the formula, Beff (%)=B−(11/14)×N+(11/48)×Ti, is 0.0050 to 0.0300%, and the rupture elongation in a tensile test at 700° C. and at a strain rate of 10−6/sec is 20% or more. This alloy may contain one or more kinds of Cu, Ta, Zr, Mg, Ca, REM, and Pd.

    摘要翻译: [待解决的问题]以质量%计,C:0.03〜0.10%,Si:0.05〜1.0%,Mn:0.1〜1.5%,Sol.Al:0.0005〜0.04%,Fe :20〜30%,Cr:21.0%以上25.0%以下,W:6.0以上9.0%以下,Ti:0.05〜0.2%,Nb:0.05〜0.35%,B:0.0005〜 0.006%,余量为Ni和杂质,杂质为P:0.03%以下,S:0.01%以下,N:小于0.010%,Mo:小于0.5%,Co:0.8%以下,其中, 由公式Beff(%)= B-(11/14)×N +(11/48)×Ti定义的有效B(Beff)的值为0.0050〜0.0300%,拉伸试验中的断裂伸长率为 700℃,应变速率为10-6 /秒为20%以上。 该合金可以含有Cu,Ta,Zr,Mg,Ca,REM和Pd中的一种或多种。

    Ni-based heat resistant alloy
    5.
    发明授权
    Ni-based heat resistant alloy 有权
    镍基耐热合金

    公开(公告)号:US09328403B2

    公开(公告)日:2016-05-03

    申请号:US14237586

    申请日:2012-07-31

    IPC分类号: C22C19/05 C22F1/10

    摘要: A Ni-based heat resistant alloy as pipe, plate, rod, forgings and the like consists of C≦0.15%, Si≦2%, Mn≦3%, P≦0.03%, S≦0.01%, Cr: 15% or more and less than 28%, Mo: 3 to 15%, Co: more than 5% and not more than 25%, Al: 0.2 to 2%, Ti: 0.2% to 3%, Nd: fn to 0.08%, and O≦0.4Nd, further containing, as necessary, at least one kind of Nb, W, B, Zr, Hf, Mg, Ca, Y, La, Ce, Ta, Re and Fe of specific amounts, the balance being Ni and impurities, wherein, fn=1.7×10−5d+0.05{(Al/26.98)+(Ti/47.88)+(Nb/92.91)}. In the formula, d denotes an average grain size (μm), and each element symbol denotes the content (mass %) of that element. If the alloy contains W, Mo+(W/2)≦15% holds. The alloy has improved ductility after long-term use at high temperatures, and cracking due to welding can be avoided.

    摘要翻译: 作为管,板,棒,锻件等的Ni基耐热合金由C< Ll; 0.15%,Si&NlE; 2%,Mn&NlE; 3%,P&NlE; 0.03%,S< 0.01%,Cr:15% 多于28%,Mo:3〜15%,Co:5%以上25%以下,Al:0.2〜2%,Ti:0.2%〜3%,Nd:fn〜0.08% O,nNE,0.4Nd,根据需要还含有特定量的Nb,W,B,Zr,Hf,Mg,Ca,Y,La,Ce,Ta,Re和Fe中的至少一种,其余为Ni和 杂质,其中,fn = 1.7×10-5d + 0.05 {(Al / 26.98)+(Ti / 47.88)+(Nb / 92.91)}。 式中,d表示平均粒径(μm),各元素符号表示该元素的含量(质量%)。 如果合金含有W,则Mo +(W / 2)≦̸ 15%成立。 该合金在长期使用高温下具有改善的延展性,并且可以避免由于焊接引起的开裂。

    Austenitic heat resistant alloy
    6.
    发明授权
    Austenitic heat resistant alloy 有权
    奥氏体耐热合金

    公开(公告)号:US08808473B2

    公开(公告)日:2014-08-19

    申请号:US13472640

    申请日:2012-05-16

    IPC分类号: C22C19/05

    CPC分类号: C22C19/055

    摘要: An austenitic heat resistant alloy includes, by mass percent, C: 0.15% or less, Si: 2% or less, Mn: 3% or less, Ni: 40 to 60%, Co: 10.14 to 25%, Cr: 15% or more and less than 28%, either one or both of Mo: 12% or less and W: less than 0.05%, the total content thereof being 0.1 to 12%, Nd: 0.001 to 0.1%, B: 0.0005 to 0.006%, N: 0.03% or less, O: 0.03% or less, at least one selected from Al: 1.36% or less, Ti: 3% or less, and Nb: 3% or less, and the balance being Fe and impurities. The contents of P and S in the impurities are P: 0.03% or less and S: 0.01% or less. The alloy satisfies 1≦4×Al+2×Ti+Nb≦12 and P+0.2×Cr×B≦0.035, where an element in the Formulas represents the content by mass percent.

    摘要翻译: 奥氏体系耐热合金的质量百分比含有:C:0.15%以下,Si:2%以下,Mn:3%以下,Ni:40〜60%,Co:10.14〜25%,Cr:15% 以上且小于28%,Mo:12%以下,W:小于0.05%,其总含量为0.1〜12%,Nd:0.001〜0.1%,B:0.0005〜0.006% ,N:0.03%以下,O:0.03%以下,Al:1.36%以下,Ti:3%以下,Nb:3%以下中的至少一种,余量为Fe和杂质。 杂质中P和S的含量为P:0.03%以下,S:0.01%以下。 合金满足1≦̸ 4×Al + 2×Ti + Nb≦̸ 12和P + 0.2×Cr×B≦̸ 0.035,式中的元素表示质量百分含量。

    AUSTENITIC HEAT RESISTANT ALLOY
    7.
    发明申请
    AUSTENITIC HEAT RESISTANT ALLOY 有权
    奥氏体耐热合金

    公开(公告)号:US20120288400A1

    公开(公告)日:2012-11-15

    申请号:US13472640

    申请日:2012-05-16

    IPC分类号: C22C19/05

    CPC分类号: C22C19/055

    摘要: An austenitic heat resistant alloy consisting of, by mass percent, C: 0.15% or less, Si: 2% or less, Mn: 3% or less, Ni: 40 to 60%, Co: 0.03 to 25%, Cr: 15% or more and less than 28%, either one or both of Mo: 12% or less and W: less than 4%, the total content thereof being 0.1 to 12%, Nd: 0.001 to 0.1%, B: 0.0005 to 0.006%, N: 0.03% or less, O: 0.03% or less, at least one selected from Al: 3% or less, Ti: 3% or less, and Nb: 3% or less, the balance being Fe and impurities. The contents of P and S in the impurities being P: 0.03% or less and S: 0.01% or less. The alloy satisfies 1≦4×Al+2×Ti+Nb≦12 and P+0.2×Cr×B≦0.035, is excellent in weld crack resistance and toughness of HAZ, and is further excellent in creep strength at high temperatures.

    摘要翻译: 一种奥氏体系耐热合金,以质量%计含有C:0.15%以下,Si:2%以下,Mn:3%以下,Ni:40〜60%,Co:0.03〜25%,Cr:15 %以上且小于28%,Mo:12%以下,W:小于4%,其总含量为0.1〜12%,Nd:0.001〜0.1%,B:0.0005〜0.006 %,N:0.03%以下,O:0.03%以下,选自Al:3%以下,Ti:3%以下,Nb:3%以下,余量为Fe和杂质中的至少一种。 杂质中P和S的含量为:0.03%以下,S:0.01%以下。 合金满足1≦̸ 4×Al + 2×Ti + Nb≦̸ 12和P + 0.2×Cr×B≦̸ 0.035,HAZ的耐熔融裂纹性和韧性优异,并且在高温下的蠕变强度更优异。

    Ni-BASED HEAT RESISTANT ALLOY
    8.
    发明申请
    Ni-BASED HEAT RESISTANT ALLOY 有权
    镍基耐热合金

    公开(公告)号:US20140234155A1

    公开(公告)日:2014-08-21

    申请号:US14237586

    申请日:2012-07-31

    IPC分类号: C22C19/05

    摘要: A Ni-based heat resistant alloy as pipe, plate, rod, forgings and the like consists of C≦0.15%, Si≦2%, Mn≦3%, P≦0.03%, S≦0.01%, Cr: 15% or more and less than 28%, Mo: 3 to 15%, Co: more than 5% and not more than 25%, Al: 0.2 to 2%, Ti: 0.2% to 3%, Nd: fn to 0.08%, and O≦0.4Nd, further containing, as necessary, at least one kind of Nb, W, B, Zr, Hf, Mg, Ca, Y, La, Ce, Ta, Re and Fe of specific amounts, the balance being Ni and impurities, wherein, fn=1.7×10−5d+0.05{(Al/26.98)+(Ti/47.88)+(Nb/92.91)}. In the formula, d denotes an average grain size (μm), and each element symbol denotes the content (mass %) of that element. If the alloy contains W, Mo+(W/2)≦15% holds. The alloy has improved ductility after long-term use at high temperatures, and cracking due to welding can be avoided.

    摘要翻译: 作为管,板,棒,锻件等的Ni基耐热合金由C< Ll; 0.15%,Si&NlE; 2%,Mn&NlE; 3%,P&NlE; 0.03%,S< 0.01%,Cr:15% 多于28%,Mo:3〜15%,Co:5%以上25%以下,Al:0.2〜2%,Ti:0.2%〜3%,Nd:fn〜0.08% O,nNE,0.4Nd,根据需要还含有特定量的Nb,W,B,Zr,Hf,Mg,Ca,Y,La,Ce,Ta,Re和Fe中的至少一种,其余为Ni和 杂质,其中,fn = 1.7×10-5d + 0.05 {(Al / 26.98)+(Ti / 47.88)+(Nb / 92.91)}。 式中,d表示平均粒径(μm),各元素符号表示该元素的含量(质量%)。 如果合金含有W,则Mo +(W / 2)≦̸ 15%成立。 该合金在长期使用高温下具有改善的延展性,并且可以避免由于焊接引起的开裂。

    Austenitic stainless steel and manufacturing method thereof
    9.
    发明授权
    Austenitic stainless steel and manufacturing method thereof 有权
    奥氏体不锈钢及其制造方法

    公开(公告)号:US06939415B2

    公开(公告)日:2005-09-06

    申请号:US10760401

    申请日:2004-01-21

    摘要: An austenitic stainless steel excellect in high temperature strength and creep rupture ducitility which comprises, on the percent by mass basis, C: 0.03-0.12%, Si: 0.2-2%, Mn: 0.1-3%, P: 0.03% or less, S: 0.01% or less, Ni: more than 18% and less than 25%, Cr: more than 22% and less than 30%, Co: 0.04-0.8%, Ti: 0.002% or more and less than 0.01%, Nb: 0.1-1%, V: 0.01-1%, B: more than 0.0005% and 0.2% or less, sol. Al: 0.0005% or more and less than 0.03%, N: 0.1-0.35% and O (Oxygen): 0.001-0.008%, with the balance being Fe and impurities. The austenitic stainless steel may contain a specified amount of one or more element(s) of Mo and W, and/or a specified amount of one or more element(s) of Mg, Zr, Ca, REM, Pd and Hf.

    摘要翻译: 奥氏体系不锈钢具有高温强度和蠕变断裂率,优选以C:0.03〜0.12%,Si:0.2〜2%,Mn:0.1〜3%,P:0.03%以下 ,S:0.01%以下,Ni:18%以上且25%以下,Cr:22%以上且30%以下,Co:0.04〜0.8%,Ti:0.002%以上0.01% ,Nb:0.1〜1%,V:0.01〜1%,B:0.0005%以上且0.2%以下。 Al:0.0005%以上且小于0.03%,N:0.1-0.35%,O(氧):0.001-0.008%,余量为Fe和杂质。 奥氏体不锈钢可以含有规定量的一种或多种Mo和W的元素,和/或规定量的一种或多种Mg,Zr,Ca,REM,Pd和Hf的元素。