Corrosion resistant duplex stainless steel with improved galling
resistance
    1.
    发明授权
    Corrosion resistant duplex stainless steel with improved galling resistance 失效
    耐腐蚀双相不锈钢,具有改善的耐磨损性

    公开(公告)号:US5254184A

    公开(公告)日:1993-10-19

    申请号:US893774

    申请日:1992-06-05

    IPC分类号: C22C38/58 C22C38/44

    CPC分类号: C22C38/58

    摘要: A duplex stainless steel having a good combination of galling resistance and corrosion resistance is disclosed containing in weight percent about:______________________________________ Broad Intermediate Preferred ______________________________________ C 0.1 Max. 0.05 Max. 0.025 Max. Mn 0-6 1-4 1-3 Si 2.5-6 3-6 4-5 Cr 16-24 17-22 18-21 Ni 2-12 6-10 7-9 Mo 4 Max. 0.5-3 1.0-2 N 0.07-0.30 0.10-0.25 0.15-0.20 ______________________________________ and the balance of the alloy is essentially iron. In the annealed condition the alloy is limited to about 15-50% v/o ferrite. To attain its good galling resistance, the alloying elements are balanced so that the % Ni+0.68 (% Cr)+0.55 (% Mn)+0.45 (% Si)+(% C+% N)+% Mo+0.2 (% Co), is at least about 27.5, and the Ni/Si ratio is not more than about 2.5.

    摘要翻译: 公开了具有良好耐磨损性和耐腐蚀性组合的双相不锈钢,其重量百分比约为: - 中间体优选-C 0.1最大。 0.05最大 0.025最大 -Mn 0-6 1-4 1-3 -Si 2.5-6 3-6 4-5 -Cr 16-24 17-22 18-21 -Ni 2-12 6-10 7-9 -Mo 4最大 0.5-3 1.0-2 -N 0.07-0.30 0.10-0.25 0.15-0.20 - 合金的余量基本上是铁。 在退火条件下,合金限制在约15-50%v / o铁素体。 为了获得良好的耐磨损性,合金元素平衡,使得Ni + 0.68(%Cr)+0.55(%Mn)+0.45(%Si)+(%C +%N)+%Mo + 0.2(%Co )为至少约27.5,Ni / Si比不大于约2.5。

    Controlled expansion alloy
    2.
    发明授权
    Controlled expansion alloy 失效
    控制膨胀合金

    公开(公告)号:US4006011A

    公开(公告)日:1977-02-01

    申请号:US445963

    申请日:1974-02-26

    IPC分类号: C22C19/00 C22C30/00

    CPC分类号: C22C19/007

    摘要: Precipitation hardenable or hardened nickel-cobalt-iron base alloy containing nickel, cobalt, iron, columbium, titanium, aluminum and boron as the only essential elements, characterized by a mean coefficient of linear expansion of about 3.times.10.sup.-.sup.6 /.degree. F to 6.times.10.sup.-.sup.6 /.degree. F from room temperature to its Curie temperature of at least about 600.degree. F to 1000.degree. F or higher. The alloy contains about 35-45% nickel, 13-18% cobalt, 2.5-7.0% columbium, 1.0-4.0% titanium, 0.1-2% aluminum, and a small but essential amount of boron.

    摘要翻译: 含有镍,钴,铁,铌,钛,铝和硼作为唯一必需元素的沉淀可硬化或硬化的镍 - 钴 - 铁基合金,其特征在于线性膨胀系数为约3×10 -6 /°F至 6×10 -6 /°F从室温至其居里温度为至少约600°F至1000°F或更高。 该合金含有约35-45%的镍,13-18%的钴,2.5-7.0%的铌,1.0-4.0%的钛,0.1-2%的铝,以及少量必需量的硼。

    Austenitic, non-magnetic, stainless steel alloy
    3.
    发明授权
    Austenitic, non-magnetic, stainless steel alloy 失效
    奥氏体,非磁性,不锈钢合金

    公开(公告)号:US5094812A

    公开(公告)日:1992-03-10

    申请号:US508222

    申请日:1990-04-12

    IPC分类号: C22C38/58

    摘要: An austenitic, non-magnetic, stainless steel alloy and articles made therefrom are disclosed which, in the wrought condition, are essentially ferrite-free and have a relative magnetic permeability of less than about 1.02, a room temperature 0.2% yield strength of at least about 100 ksi, and good resistance to stress corrosion cracking in chloride environments. Broad, intermediate, and preferred ranges are disclosed as follows:______________________________________ w/o Broad Intermediate Preferred ______________________________________ C 0.08 max. 0.05 max. 0.035 max. Mn 14-19 15-18 16-18 Si 1 max. 1 max. 0.75 max. Cr 12-21 14-19.5 16-18 Ni 3.5 2.5 max. 1.5 max. Mo 0.5-4 0.75-2.5 1.0-2.0 Cu 2.0 max. 1.5 max. 1.0 max. N 0.2-0.8 0.3-0.7 0.4-0.6 B 0.06 max. 0.005 max. 0.005 max. ______________________________________ the balance being iron. The alloy is balanced to be essentially ferrite-free and is further balanced according to Equations 1 and 2 (Eqs. 1 and 2) to provide good chloride SCC resistance: ##EQU1##w/o Mn

    摘要翻译: 公开了一种奥氏体,非磁性不锈钢合金及其制成的制品,其在锻造条件下基本上是铁素体,并且具有小于约1.02的相对导磁率,室温至少0.2%屈服强度 约100 ksi,在氯化物环境中具有良好的耐应力腐蚀开裂性能。 宽泛的,中间的和优选的范围公开如下:-w / o-中间体优选-C 0.08最大 最大0.05 最大0.035 -Mn 14-19 15-18 16-18 -Si 1 max。 最多1个 最大0.75 -Cr 12-21 14-19.5 16-18 -Ni 3.5 2.5最大 最大1.5 -Mo 0.5-4 0.75-2.5 1.0-2.0 -Cu 2.0最大 最大1.5 最大1.0 -N 0.2-0.8 0.3-0.7 0.4-0.6 -B 0.06最大 最高0.005 最高0.005 - 平衡是铁。 该合金平衡,基本上不含铁素体,并根据方程1和2(方程式1和2)进一步平衡,以提供良好的氯化物SCC电阻:(等式1)w / o Mn

    Austenitic, non-magnetic, stainless steel alloy and articles made
therefrom
    4.
    发明授权
    Austenitic, non-magnetic, stainless steel alloy and articles made therefrom 失效
    奥氏体,非磁性,不锈钢合金及其制品

    公开(公告)号:US5308577A

    公开(公告)日:1994-05-03

    申请号:US934698

    申请日:1992-09-23

    IPC分类号: C22C38/58 C22C38/44

    摘要: An austenitic, non-magnetic, stainless steel alloy is disclosed which, in the wrought condition, is essentially ferrite-free and has a relative magnetic permeability of less than about 1.02, a room temperature 0.2% yield strength of at least about 100 ksi, and good resistance to stress corrosion cracking in chloride environments. Broad, intermediate, and preferred ranges are disclosed as follows:______________________________________ w/o Broad Intermediate Preferred ______________________________________ C 0.08 max. 0.05 max. 0.035 max. Mn 14-19 15-18 16-18 Si 1.0 max. 1.0 max. 0.75 max. Cr 12-21 14-19.5 16-18 Ni 3.5 2.5 max. 1.5 max. Mo 0.5-4 0.75-2.5 1.0-2.0 Cu 2.0 max. 1.5 max. 1.0 max. N 0.2-0.8 0.3-0.7 0.4-0.6 B 0.06 max. 0.005 max. 0.005 max. ______________________________________ the balance being iron. The alloy is balanced to be essentially ferrite-free and to provide good chloride SCC resistance in accordance with the following relationships: ##EQU1##

    摘要翻译: PCT No.PCT / US91 / 02490 371日期:1992年9月23日 102(e)1992年9月23日PCT日期1991年4月11日PCT公开了一种奥氏体非磁性不锈钢合金,其在锻造条件下基本上不含铁素体,并且具有较小的相对磁导率 约1.02,室温0.2%屈服强度为至少约100ksi,并且在氯化物环境中具有良好的耐应力腐蚀开裂性能。 宽泛的,中间的和优选的范围公开如下:-w / o-中间体优选-C 0.08最大 最大0.05 最大0.035 -Mn 14-19 15-18 16-18 -Si 1.0最大 最大1.0 最大0.75 -Cr 12-21 14-19.5 16-18 -Ni 3.5 2.5最大 最大1.5 -Mo 0.5-4 0.75-2.5 1.0-2.0 -Cu 2.0最大 最大1.5 最大1.0 -N 0.2-0.8 0.3-0.7 0.4-0.6 -B 0.06最大 最高0.005 最高0.005 - 平衡是铁。 该合金的平衡是基本上不含铁素体的,并且根据以下关系提供良好的氯化物SCC电阻:< IMAGE><< w / o Cr + w / o Mo。