Steel compositions for special uses
    1.
    发明授权
    Steel compositions for special uses 有权
    钢组合物用于特殊用途

    公开(公告)号:US09005520B2

    公开(公告)日:2015-04-14

    申请号:US12303764

    申请日:2007-06-07

    摘要: The invention concerns steels having excellent resistance over time, in a corrosive atmosphere due to oxidizing environments such as, for example, fumes or water vapor, under high pressure and/or temperature. The invention concerns a steel composition for special applications, said composition containing, by weight, about 1.8 to 11% of chromium (and preferably between about 2.3 and 10% of chromium), less than 1% of silicon, and between 0.20 and 0.45% of manganese. It has been found that it is possible to adjust the contents of the composition based on a predetermined model, selected to obtain substantially optimal properties with respect to corrosion in specific conditions of high temperature performances. Said model can involve as additive of as residue at least one element selected among molybdenum, tungsten, cobalt, and nickel.

    摘要翻译: 本发明涉及在高压和/或高温下由于诸如烟雾或水蒸汽之类的氧化性环境而在腐蚀性气氛中具有优异的耐久性的钢。 本发明涉及一种用于特殊用途的钢组合物,所述组合物含有约1.8-11%的铬(优选约2.3-10%的铬),小于1%的硅和0.20-0.45%的铬, 的锰。 已经发现,可以基于预定模型来调整组合物的含量,该预定模型被选择以获得关于在高温性能的特定条件下的腐蚀的基本上最佳的性能。 所述模型可以包括作为残留物的添加剂,其选自钼,钨,钴和镍中的至少一种元素。

    STEEL COMPOSITIONS FOR SPECIAL USES
    2.
    发明申请
    STEEL COMPOSITIONS FOR SPECIAL USES 有权
    钢铁组合物用于特殊用途

    公开(公告)号:US20100307430A1

    公开(公告)日:2010-12-09

    申请号:US12303764

    申请日:2007-06-07

    IPC分类号: F22B37/10 C22C38/44 C22C38/22

    摘要: The invention concerns steels having excellent resistance over time, in a corrosive atmosphere due to oxidizing environments such as, for example, fumes or water vapour, under high pressure and/or temperature. The invention concerns a steel composition for special applications, said composition containing, by weight, about 1.8 to 11% of chromium (and preferably between about 2.3 and 10% of chromium), less than 1% of silicon, and between 0.20 and 0.45% of manganese. It has been found that it is possible to adjust the contents of the composition based on a predetermined model, selected to obtain substantially optimal properties with respect to corrosion in specific conditions of high temperature performances. Said model can involve as additive of as residue at least one element selected among molybdenum, tungsten, cobalt, and nickel.

    摘要翻译: 本发明涉及在高压和/或高温下由于诸如烟雾或水蒸汽之类的氧化性环境而在腐蚀性气氛中具有优异的耐久性的钢。 本发明涉及一种用于特殊用途的钢组合物,所述组合物含有约1.8-11%的铬(优选约2.3-10%的铬),小于1%的硅和0.20-0.45%的铬, 的锰。 已经发现,可以基于预定模型来调整组合物的含量,该预定模型被选择以获得关于在高温性能的特定条件下的腐蚀的基本上最佳的性能。 所述模型可以包括作为残留物的添加剂,其选自钼,钨,钴和镍中的至少一种元素。

    Low alloy steel with a high yield strength and high sulphide stress cracking resistance
    3.
    发明授权
    Low alloy steel with a high yield strength and high sulphide stress cracking resistance 有权
    具有高屈服强度和高硫化物抗应力开裂性能的低合金钢

    公开(公告)号:US09394594B2

    公开(公告)日:2016-07-19

    申请号:US13203905

    申请日:2010-02-12

    IPC分类号: C22C38/26 C22C38/22

    CPC分类号: C22C38/26 C22C38/22

    摘要: A steel contains, by weight: C: 0.3% to 0.5%, Si: 0.1% to 0.5%, Mn: 0.1% to 1%, P: 0.03% or less, S: 0.005% or less, Cr: 0.3% to 1.5%, Mo: 1.0% to 1.5%, Al: 0.01% to 0.1%, V: 0.03% to 0.06%, Nb: 0.04% to 0.15%, Ti: 0 to 0.015%, N: 0.01% or less, the remainder of the chemical composition of the steel being constituted by Fe and impurities or residuals resulting from or necessary to steel production and casting processes. The steel enables to produce seamless tubes with a yield strength after heat treatment of 862 MPa or more which are particularly SSC-resistant.

    摘要翻译: 钢含有C:0.3〜0.5%,Si:0.1〜0.5%,Mn:0.1〜1%,P:0.03%以下,S:0.005%以下,Cr:0.3%〜 1.5%,Mo:1.0%〜1.5%,Al:0.01〜0.1%,V:0.03%〜0.06%,Nb:0.04%〜0.15%,Ti:0〜0.015%,N:0.01% 钢的化学成分的剩余部分由Fe构成,由钢生产和铸造过程所产生或必需的杂质或残余物构成。 该钢能够制造热处理后的屈服强度为862MPa以上的无缝管,特别是耐SSC。

    LOW ALLOY STEEL WITH A HIGH YIELD STRENGTH AND HIGH SULPHIDE STRESS CRACKING RESISTANCE
    4.
    发明申请
    LOW ALLOY STEEL WITH A HIGH YIELD STRENGTH AND HIGH SULPHIDE STRESS CRACKING RESISTANCE 有权
    具有高强度和高硫应力抗裂性的低合金钢

    公开(公告)号:US20110315276A1

    公开(公告)日:2011-12-29

    申请号:US13203905

    申请日:2010-02-12

    CPC分类号: C22C38/26 C22C38/22

    摘要: A steel contains, by weight: C: 0.3% to 0.5%, Si: 0.1% to 0.5%, Mn: 0.1% to 1%, P: 0.03% or less, S: 0.005% or less, Cr: 0.3% to 1.5%, Mo: 1.0% to 1.5%, Al: 0.01% to 0.1%, V: 0.03% to 0.06%, Nb: 0.04% to 0.15%, Ti: 0 to 0.015%, N: 0.01% or less, the remainder of the chemical composition of the steel being constituted by Fe and impurities or residuals resulting from or necessary to steel production and casting processes. The steel enables to produce seamless tubes with a yield strength after heat treatment of 862 MPa or more which are particularly SSC-resistant.

    摘要翻译: 钢含有C:0.3〜0.5%,Si:0.1〜0.5%,Mn:0.1〜1%,P:0.03%以下,S:0.005%以下,Cr:0.3%〜 1.5%,Mo:1.0%〜1.5%,Al:0.01〜0.1%,V:0.03%〜0.06%,Nb:0.04%〜0.15%,Ti:0〜0.015%,N:0.01% 钢的化学成分的剩余部分由Fe构成,由钢生产和铸造过程所产生或必需的杂质或残余物构成。 该钢能够制造热处理后的屈服强度为862MPa以上的无缝管,特别是耐SSC。