Free-machining austenitic stainless steel
    1.
    发明授权
    Free-machining austenitic stainless steel 失效
    自由加工奥氏体不锈钢

    公开(公告)号:US5482674A

    公开(公告)日:1996-01-09

    申请号:US271199

    申请日:1994-07-07

    CPC分类号: C22C38/58 C22C38/60

    摘要: An austenitic, stainless steel alloy having a unique combination of machinability and a low magnetic permeability, especially in the cold worked condition, is disclosed consisting essentially of, in weight percent, about______________________________________ C 0.l035 max Mn 1.0-4.0 Si 1.0 max P 0.2 max S 0.15-0.45 Cr 16.0-20.0 Ni 9.2-12.0 Mo 1.5 max Cu 0.8-2.0 N 0.035 max Se 0.1 max ______________________________________ with the balance essentially iron.

    摘要翻译: 公开了一种奥氏体不锈钢合金,其具有独特的机械加工性和低磁导率的组合,特别是在冷加工条件下,其重量百分比基本上以重量百分数约为-C0.1353-Mn 1.0-4.0 -Si 1.0 最大-P 0.2最大-S 0.15-0.45 -Cr 16.0-20.0 -Ni 9.2-12.0 -Mo 1.5最大-Cu 0.8-2.0 -N 0.035最大-Se 0.1最大 - 余量基本上为铁。

    Corrosion resistant duplex stainless steel with improved galling
resistance
    3.
    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。

    Austenitic, non-magnetic, stainless steel alloy
    4.
    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
    5.
    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。

    Free-machining austenitic stainless steel
    6.
    发明授权
    Free-machining austenitic stainless steel 失效
    自由加工奥氏体不锈钢

    公开(公告)号:US5512238A

    公开(公告)日:1996-04-30

    申请号:US473412

    申请日:1995-06-07

    CPC分类号: C22C38/42 C22C38/44

    摘要: An austenitic, stainless steel alloy consists essentially of, in weight percent, about:______________________________________ C 0.030 max Mn 2.0 max Si 1.0 max P 0.05 max S 0.02-0.05 Cr 16.0-20.0 Ni 9.8-14.0 Mo 3.0 max Cu 0.8-1.5 N 0.035 max______________________________________up to about 0.75 weight percent of an element selected from the group consisting of Ti and Cb, and the balance is essentially iron, wherein Cb is not more than about 0.1 weight percent when Ti.gtoreq.(5.times.% C.) and Ti is not more than about 0.1 weight percent when Cb.gtoreq.(10.times.% C.). The alloy provides a unique combination of machinability, corrosion resistance, formability, and mechanical properties.

    摘要翻译: 奥氏体不锈钢合金主要由重量百分数约为:-C 0.030 max -Mn 2.0最大-Si 1.0最大-P 0.05最大-S 0.02-0.05 -Cr 16.0-20.0 -Ni 9.8-14.0-3.0 3.0 最大-Cu 0.8-1.5 -N 0.035最大 - 至多约0.75重量%的选自Ti和Cb的元素,余量基本上为铁,其中当Ti> 0.1时,Cb不超过约0.1重量% / =(5×C)。当Cb> / =(10×C)时,Ti不大于约0.1重量%。 该合金提供了可加工性,耐腐蚀性,成形性和机械性能的独特组合。

    Free-machining austenitic stainless steel
    7.
    发明授权
    Free-machining austenitic stainless steel 失效
    自由加工奥氏体不锈钢

    公开(公告)号:US5788922A

    公开(公告)日:1998-08-04

    申请号:US641758

    申请日:1996-05-02

    IPC分类号: C22C38/60 C22C38/58

    CPC分类号: C22C38/60

    摘要: An austenitic, stainless steel alloy is disclosed consisting essentially of, in weight percent, about ______________________________________ C 0.035 max Mn 3-10 Si 1.0 max P 0.05 max S 0.15-0.45 Cr 10-20 Ni 4-8 Mo 1.0 max Cu 1.0-3.0 N 0.035 max B 0.005 max Se 0.1 max ______________________________________ with the balance essentially iron. The disclosed stainless steel provides superior machinability relative to AISI Type 203 stainless steel with similar corrosion resistance, strength, ductility, hardness, and magnetic permeability.

    摘要翻译: 公开了一种奥氏体不锈钢合金,其基本上以重量百分数约为-C 0.035最大 - Mn 3-10 - Si 1.0最大 - P 0.05最大-S 0.15-0.45 - Cr 10-20 - Ni 4-8 - Mo 1.0最大 - Cu 1.0-3.0 - N 0.035最大 - B 0.005最大 - Se 0.1最大 - 余量基本上是铁。 所公开的不锈钢相对于具有类似耐腐蚀性,强度,延展性,硬度和磁导率的AISI 203型不锈钢提供优异的机械加工性能。

    Austenitic, non-magnetic, stainless steel alloy
    8.
    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:US4818484A

    公开(公告)日:1989-04-04

    申请号:US935116

    申请日:1986-11-26

    IPC分类号: C22C38/00 C22C38/44

    CPC分类号: C22C38/001 C22C38/44

    摘要: A large, austenitic, non-magnetic, stainless steel, alloy article which has been significantly warm worked between about 1500 F. and 1650 F. but not subsequently annealed, which has a 0.2% yield strength of at least about 90 ksi, and which, when formed into a U-bend, does not undergo stress corrosion cracking within about 700 hours in boiling saturated aqueous sodium chloride containing 2 weight percent (w/o) ammonium bisulfite. The alloy of the article consists essentially of about:______________________________________ Elements w/o ______________________________________ C 0.1 Max. Mn 1-11 Si 0.6 Max. Cr 18-23 Ni 14-25 Mo 2.5-6.5 Cu 2 Max. B .01 Max. N 0.15 Min. C + N .gtoreq. ##STR1## ______________________________________ and the balance is essentially iron. A preferred alloy for this article contains about:______________________________________ Elements w/o ______________________________________ C .02 Max. Mn 3.0-9.0 Si 0.5 Max. Cr 18-23 Ni 15-22 Mo 2.5-6.5 N 0.20 Min. 3 Mo + Cr .gtoreq. 29.5 ______________________________________

    摘要翻译: 大大的奥氏体非磁性不锈钢合金制品已经在大约1500°F和1650°F之间被显着地加热,但没有随后退火,其具有至少约90ksi的0.2%屈服强度,并且其中 当形成U形弯曲时,在含有2重量%(w / o)亚硫酸氢铵的沸腾饱和氯化钠水溶液中,在约700小时内不会发生应力腐蚀开裂。 制品的合金基本上由以下组成: - 元素w / o -C 0.1最大 -Mn 1-11 -Si 0.6最大 -Cr 18-23 -Ni 14-25 -Mo 2.5-6.5 -Cu 2最大 -B .01最大 -N 0.15最小 -C + N> / = - 平衡基本上是铁。 本文中优选的合金包含: - 不含-C。 -Mn 3.0-9.0 -Si 0.5 Max -C 18-18 -N 15-22 -Mo 2.5-6.5 -N 0.20 Min。 -3 Mo + Cr> / = 29.5 -

    Galling resistant austenitic stainless steel alloy
    9.
    发明授权
    Galling resistant austenitic stainless steel alloy 失效
    耐磨奥氏体不锈钢合金

    公开(公告)号:US4814140A

    公开(公告)日:1989-03-21

    申请号:US62899

    申请日:1987-06-16

    IPC分类号: C22C38/58 C22C38/40

    CPC分类号: C22C38/58

    摘要: A galling and corrosion resistant austenitic stainless steel alloy is disclosed containing in weight percent about______________________________________ w/o ______________________________________ Carbon 0.25 Max. Manganese 2.0-7.0 Silicon 1.0-5.0 Phosphorus 0.05 Max. Sulfur 0.3 Max. Chromium 12-20 Nickel 2.0-7.75 Molybdenum 3 Max. Copper 3 Max. Nitrogen 0.35 Max. ______________________________________ the balance being essentially iron. To attain its unique properties the alloy must be balanced so as to contain no more than about 10% ferrite. The % Ni+1/2(% Mn) must not be less than 5.5% and not greater than 1/8[11(% Si)+42], and the sum of the (% C+% N) is at least 0.15%. Care must be taken that when the amount of silicon present is less than about 2.25%, at least about 4.0% manganese is present.

    摘要翻译: 公开了一种耐磨和耐腐蚀的奥氏体不锈钢合金,其重量百分比约为-w / o-碳0.25最大。 - 锰2.0-7.0 - 硅1.0-5.0 - 磷0.05最大 - 硫0.3最大 - 铬12-20 - 镍2.0-7.75 - 钼3最大 - 铜3最大 - 氮0.35最大 - 平衡本质上是铁。 为了获得其独特的性能,合金必须平衡,以便含有不超过约10%的铁素体。 %Ni + 1/2(%Mn)不得小于5.5%且不大于1/8 [11(%Si)+42]],(%C +%N)之和至少为0.15 %。 必须注意,当硅的存在量小于约2.25%时,存在至少约4.0%的锰。

    Corrosion-resistant, cold-formable, machinable, high strength, martensitic stainless steel
    10.
    发明授权
    Corrosion-resistant, cold-formable, machinable, high strength, martensitic stainless steel 有权
    耐腐蚀,可冷成型,可加工,高强度,马氏体不锈钢

    公开(公告)号:US08017071B2

    公开(公告)日:2011-09-13

    申请号:US12547998

    申请日:2009-08-26

    IPC分类号: C22C38/20 C22C38/22 C22C38/60

    摘要: A corrosion resistant, martensitic steel alloy having very good cold formability is described. The alloy has the following weight percent composition. Carbon0.10-0.40 Manganese0.01-2.0  Silicon 2.0 max. Phosphorus 0.2 max. Sulfur0.030 max.  Chromium10-15 Nickel 0.5 max. Molybdenum0.75-4.0  Nitrogen0.02-0.15 Copper1.5-4.0 Titanium0.01 max. Aluminum0.01 max. Niobium + Tantalum0.10 max. Vanadium0.20 max. Zirconiumless than 0.001 Calciumless than 0.001 The balance of the alloy is essentially iron. Nickel and copper are balanced in the alloy such that the ratio Ni/Cu is less than 0.2. A second embodiment of the alloy contains at least about 0.005% sulfur, selenium, or a combination thereof to provide good machinability.

    摘要翻译: 描述了具有非常好的冷成形性的耐腐蚀马氏体钢合金。 该合金具有以下重量百分比的组成。 碳0.10-0.40锰0.01-2.0硅2.0最大 磷0.2最大 硫0.030最大 铬10-15镍0.5最大 钼0.75-4.0氮0.02-0.15铜1.5-4.0钛0.01 铝0.01最大 铌+钽0.10最大 钒0.20最大 小于0.001的钙低于0.001的钙合金本质上是铁。 镍和铜在合金中平衡,使得Ni / Cu的比例小于0.2。 该合金的第二个实施例含有至少约0.005%的硫,硒或其组合以提供良好的机械加工性。