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    • 64. 发明授权
    • High strength Cr-Ni alloy material and seamless pipe for oil well
    • 高强度Cr-Ni合金材料和油井无缝管
    • US08071020B2
    • 2011-12-06
    • US12485270
    • 2009-06-16
    • Yohei OtomeMasaaki IgarashiHisashi AmayaHirokazu Okada
    • Yohei OtomeMasaaki IgarashiHisashi AmayaHirokazu Okada
    • C22C28/00C22C38/42C22C38/44
    • C22C38/02C22C38/001C22C38/005C22C38/04C22C38/06C22C38/42C22C38/44Y10S148/909
    • A high strength Cr—Ni alloy material excellent in hot workability and stress corrosion cracking resistance, and seamless pipe for oil well application which consists of, by mass percent, C: 0.05% or less, Si: 0.05 to 1.0%, Mn: 0.01% or more and less than 3.0%, P: 0.05% or less, S: 0.005% or less, Cu: 0.01 to 4%, Ni: 25% or more and less than 35%, Cr: 20 to 30%, Mo: 0.01% or more and less than 4.0%, N: 0.10 to 0.30%, Al: 0.03 to 0.30%, O (oxygen): 0.01% or less, and REM (rare earth metal): 0.01 to 0.20% with the balance being Fe and impurities, and also satisfies the conditions in the following formula (1). N×P/REM≦0.40  formula (1) where P, N, and REM in the formula (1) respectively denote the contents (mass %) of P, N, and REM. The high strength Cr—Ni alloy material may further contain one or more types of W, Ti, Nb, Zr, V, Ca, and Mg, instead of part of Fe.
    • C:0.05%以下,Si:0.05〜1.0%,Mn:0.01%以下的质量%以上的油井用无缝管,耐热加工性和耐应力腐蚀开裂性优异的高强度Cr-Ni合金材料 %以上且小于3.0%,P:0.05%以下,S:0.005%以下,Cu:0.01〜4%,Ni:25%以上且小于35%,Cr:20〜30%,Mo :0.01%以上且小于4.0%,N:0.10〜0.30%,Al:0.03〜0.30%,O(氧):0.01%以下,REM(稀土金属):0.01〜0.20% 为Fe和杂质,也满足下式(1)的条件。 式(1)中的P,N,REM分别表示P,N,REM的含量(质量%),N×P / REM&nlE 0.40。 高强度Cr-Ni合金材料可以进一步含有一种或多种W,Ti,Nb,Zr,V,Ca和Mg而不是Fe的一部分。
    • 66. 发明申请
    • HIGH STRENGTH Cr-Ni ALLOY MATERIAL AND SEAMLESS PIPE FOR OIL WELL
    • 高强度Cr-Ni合金材料和无缝管油
    • US20090291017A1
    • 2009-11-26
    • US12485270
    • 2009-06-16
    • Yohei OtomeMasaaki IgarashiHisashi AmayaHirokazu Okada
    • Yohei OtomeMasaaki IgarashiHisashi AmayaHirokazu Okada
    • C22C30/02
    • C22C38/02C22C38/001C22C38/005C22C38/04C22C38/06C22C38/42C22C38/44Y10S148/909
    • [Object] To provide a high strength Cr—Ni alloy material excellent in hot workability and stress corrosion cracking resistance, and seamless pipe for oil well.[Solution] A high strength Cr—Ni alloy material which consists of, by mass percent, C: 0.05% or less, Si: 0.05 to 1.0%, Mn: 0.01% or more and less than 3.0%, P: 0.05% or less, S: 0.005% or less, Cu: 0.01 to 4%, Ni: 25% or more and less than 35%, Cr: 20 to 30%, Mo: 0.01% or more and less than 4.0%, N: 0.10 to 0.30%, Al: 0.03 to 0.30%, O (oxygen): 0.01% or less, and REM (rare earth metal): 0.01 to 0.20%, with the balance being Fe and impurities, and also satisfies the conditions in the following formula (1). N×P/REM≦0.40  formula (1) where P, N, and REM in the formula (1) respectively denote the contents (mass %) of P, N, and REM. The high strength Cr—Ni alloy material may further contain one or more types of W, Ti, Nb, Zr, V, Ca, and Mg, instead of part of Fe.
    • 本发明提供热加工性和耐应力腐蚀开裂性优异的高强度Cr-Ni合金材料,以及油井无缝管。 [方案]一种高强度Cr-Ni合金材料,以质量%计含有C:0.05%以下,Si:0.05〜1.0%,Mn:0.01%以上且小于3.0%,P:0.05%以上 较少,S:0.005%以下,Cu:0.01〜4%,Ni:25%以上且小于35%,Cr:20〜30%,Mo:0.01%以上且4.0%以下N:0.10 至0.30%,Al:0.03〜0.30%,O(氧)0.01%以下,REM(稀土金属):0.01〜0.20%,余量为Fe和杂质,也满足以下条件 公式1)。 NxP / REM其中,式(1)中的P,N和REM分别表示P,N和REM的含量(质量%)。 高强度Cr-Ni合金材料可以进一步含有一种或多种W,Ti,Nb,Zr,V,Ca和Mg而不是Fe的一部分。
    • 67. 发明申请
    • Fe-Ni alloy pipe stock and method for manufacturing the same
    • 铁镍合金管材及其制造方法
    • US20070175547A1
    • 2007-08-02
    • US11643823
    • 2006-12-22
    • Masaaki IgarashiKazuhiro ShimodaTomio YamakawaHisashi Amaya
    • Masaaki IgarashiKazuhiro ShimodaTomio YamakawaHisashi Amaya
    • C22C30/00
    • C22F1/10B21B23/00C21D8/10C22C19/055C22C38/02C22C38/04C22C38/42C22C38/44
    • An Fe—Ni alloy pipe stock having a chemical composition comprising, by mass %, C≦0.04%, Si≦0.50%, Mn: 0.01 to 6.0%, P≦0.03%, S≦0.01%, Cr: 20 to 30%, Ni: 30 to 45%, Mo: 0 to 10%, W: 0 to 20%, with Mo(%)+0.5W(%): more than 1.5% to not more than 10%, Cu: 0.01 to 1.5%, Al≦0.01% and N: 0.0005 to 0.20%, and the balance substantially being Fe, with 1440−6000P−100S−2000C≧1300, Ni+10(Mo+0.5W)+100N≦120, (Ni−35)+10(N−0.1)−2(Cr−25)−5(Mo+0.5W−3)+8≧0, can be manufactured into a seamless pipe by use of a Mannesmann piercing and rolling mill because of its excellent inner surface properties. The resulting seamless pipe has excellent mechanical properties and moreover has excellent corrosion resistance in a sour gas environment, and thus, the Fe—Ni alloy pipe stock can be used as a pipe stock for oil country tubular goods and line pipes and further as a pipe stock for various structural members of nuclear power plants and chemical industrial plants.
    • 1.一种Fe-Ni合金管材,其特征在于,以质量%计含有C <= 0.04%,Si <0.50%,Mn:0.01〜6.0%,P <0.03%,S <0.01%,Cr: 20〜30%,Ni:30〜45%,Mo:0〜10%,W:0〜20%,Mo(%)+ 0.5W(%):大于1.5%以上10% :0.01〜1.5%,Al≤0.01%,N:0.0005〜0.20%,余量基本上为Fe,1440-6000P-100S-2000C> = 1300,Ni + 10(Mo + 0.5W)+ 100N < = 120,(Ni-35)+10(N-0.1)-2(Cr-25)-5(Mo + 0.5W-3)+8> = 0可以通过使用Mannesmann 穿孔轧机由于其内表面性能优异。 所得到的无缝管具有优异的机械性能,并且在酸性气体环境中具有优异的耐腐蚀性,因此,Fe-Ni合金管材可用作油井管和管线管的管材,还可用作管 核电厂和化工厂各种结构成员的库存。