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公开(公告)号:US4371394A
公开(公告)日:1983-02-01
申请号:US209056
申请日:1980-11-21
IPC分类号: C22C38/58
CPC分类号: C22C38/58
摘要: A corrosion resistant austenitic stainless steel alloy and articles made therefrom consisting essentially in weight percent of______________________________________ (w/o) ______________________________________ C 0.03-0.1 Mn 4-11 Si 0.6 Max. Cr 20-23 Ni 14-18 Mo 4.8-5.6 B 0.01 Max. Ce + La 0.4 Max. Al 0.1 Max. C + N 0.23 Min. ______________________________________ in which nitrogen ranges from a minimum of 0.15 w/o to no more than the amount that can be retained in solid solution, the balance being essentially iron, and the elements being balanced so that cold rolled annealed specimens prepared with a crevice and tested in accordance with ASTM G48-76 in 10 w/o FeCl.sub.3 .multidot.6H.sub.2 O at 50.degree. C. for 72 hours have a weight loss of less than 0.3 gram. An embodiment that is particularly well suited for making autogeneously welded articles, e.g. tubing, for uses requiring exposure to brackish water consists essentially in weight percent of:______________________________________ (w/o) ______________________________________ C 0.06-0.08 Mn 4-6 Si 0.6 Max. Cr 20.5-21.5 Ni 14.5-15.5 Mo 4.8-5.4 B 0.0015-0.0035 Al 0.5 Max. N 0.20-0.25 ______________________________________ in which the balance is essentially iron.
摘要翻译: 耐腐蚀奥氏体不锈钢合金及其制成的制品基本上以 - (w / o)-C 0.03-0.1 -Mn 4-11 -Si 0.6的最大重量百分比组成。 -Cr 20-23 -Ni 14-18 -Mo 4.8-5.6 -B 0.01最大 -Ce + La 0.4最大 -Al 0.1最大 -C + N 0.23 Min。 - 其中氮范围从0.15w / o至不超过固体溶液中保留的量,余量基本上是铁,并且元件是平衡的,以便冷缝退火样品用缝隙和试验制备 根据ASTM G48-76在10w / o FeCl 3 x 6H 2 O中在50℃下72小时的重量损失小于0.3克。 特别适合于制造自动焊接制品的实施例,例如, 用于需要暴露于咸水的用途的管道基本上以重量百分比表示: - (w / o)-C 0.06-0.08-Mn 4-6 -Si 0.6最大。 -Cr 20.5-21.5 -Ni 14.5-15.5 -Mo 4.8-5.4 -B 0.0015-0.0035 -Al 0.5最大 -N 0.20-0.25 - 其中天平基本上是铁。
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公开(公告)号:US4201575A
公开(公告)日:1980-05-06
申请号:US040179
申请日:1979-05-18
申请人: Michael Henthorne , Terry DeBold
发明人: Michael Henthorne , Terry DeBold
摘要: An austenitic stainless corrosion resistant alloy consisting essentially in weight percent (w/o) of______________________________________ Broad-(w/o) Preferred-(w/o) ______________________________________ C 0.06 Max. 0.015-0.025 Mn 1.00 Max. 0.50 Max. Si 0.50 Max. 0.40 Max. P 0.03 Max. 0.03 Max. S 0.03 Max. 0.005 Max. Cr 22-26 23.5-24.5 Ni 32.5-37 32.5-34.5 Mo 5-6.7 5.5-6.2 Cu 1.0-4 3.0-3.5 B 0.005 Max. 0.0015-0.0035 Nb 1 Max. 0.15-0.25 N 0.4 Max.* 0.05 Max. Ce + La 0.4 Max.** 0.3 Max.** ______________________________________ *OR the limit of solubility. **Amount added as misch metal. The balance is iron and incidental impurities. The alloy is useful for the production of parts requiring good resistance to corrosion. It has good resistance to pitting and stress corrosion when exposed to chlorides and has good resistance to oxidizing media. The alloy is particularly useful as parts for fume scrubbers and in phosphoric acid plants.
摘要翻译: 奥氏体不锈钢耐腐蚀合金,主要以重量百分比(w / o)宽 - (w / o)优选 - (w / o)C 0.06 Max。 0.015-0.025 Mn 1.00最大 0.50最大 Si 0.50最大 0.40最大 P 0.03最大 0.03最高 S 0.03最大 0.005最大 Cr 22-26 23.5-24.5 Ni 32.5-37 32.5-34.5 Mo 5-6.7 5.5-6.2 Cu 1.0-4 3.0-3.5 B 0.005最大 0.0015-0.0035 Nb 1最大 0.15-0.25 N 0.4最大* 0.05最大 Ce + La 0.4最大** 0.3最大** *或溶解度极限。 **作为混合金属添加量。 余量是铁和杂质。 该合金可用于生产需要良好的耐腐蚀性的部件。 当暴露于氯化物时,它具有良好的耐点蚀和应力腐蚀性,并且具有良好的耐氧化性。 该合金特别用作烟气洗涤器和磷酸设备中的部件。
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