IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0470795
(1974-05-17)
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발명자
/ 주소 |
- Culling John H. (Kirkwood MO)
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출원인 / 주소 |
- Carondelet Foundry Company (St. Louis MO 02)
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인용정보 |
피인용 횟수 :
6 인용 특허 :
0 |
초록
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An air-meltable, castable, workable alloy resistant to corrosion in sulfuric acid over a wide range of acid strengths. The alloy consists essentially of between about 28.59 and about 36.72% by weight nickel, between about 26.33 and about 30.15% by weight chromium, between about 3 and about 4.1% by w
An air-meltable, castable, workable alloy resistant to corrosion in sulfuric acid over a wide range of acid strengths. The alloy consists essentially of between about 28.59 and about 36.72% by weight nickel, between about 26.33 and about 30.15% by weight chromium, between about 3 and about 4.1% by weight molybdenum, between about 3 and about 4.5% by weight copper, between about 3 and about 4% by weight manganese, up to about 0.5% by weight cobalt, up to about 0.60% by weight silicon, up to about 0.07% by weight carbon, up to about 1% by weight tantalum, up to about 1% by weight titanium, up to about 2.38% by weight niobium, up to about 0.010% by weight boron, up to about 0.6% by weight of a rare earth component selected from the group consisting of cerium, lanthanum and misch metal, up to about 0.15% by weight nitrogen, and the balance essentially iron. The sum of the chromium content and 0.56 times the niobium content is between about 27 and about 31% by weight. The nickel content exceeds the chromium content by at least about 1.5% and also exceeds the sum of the chromium content and 0.56 times the niobium content by at least about 1.4%. Where the carbon content exceeds 0.04% by weight, it must be less than the sum of five times the titanium content and 10 times the niobium plus tantalum content.
대표청구항
▼
An air-meltable, castable, workable alloy resistant to corrosion in sulfuric acid over a wide range of acid strengths consisting essentially of between about 28.59 and about 36.72% by weight nickel, between about 26.33 and about 30.15% by weight chromium, between about 3 and about 4.1% by weight mol
An air-meltable, castable, workable alloy resistant to corrosion in sulfuric acid over a wide range of acid strengths consisting essentially of between about 28.59 and about 36.72% by weight nickel, between about 26.33 and about 30.15% by weight chromium, between about 3 and about 4.1% by weight molybdenum, between about 3 and about 4.5% by weight copper, between about 3 and about 4% by weight manganese, up to about 0.5% by weight cobalt, up to about 0.60% by weight silicon, up to about 0.07% by weight carbon, up to about 1% by weight tantalum, up to about 1% by weight titanium, up to about 2.38% by weight niobium, up to about 0.010% by weight boron, up to about 0.6% by weight of a rare earth component selected from the group consisting of cerium, lanthanum and misch metal, up to about 0.15% by weight nitrogen, and the balance essentially iron, provided that: a. the sum of the chromium content and 0.56 times the niobium content is between about 27 and about 31% by weight; b. the nickel content exceeds the chromium content by at least about 1.5%; c. the nickel content exceeds the sum of the chromium content and 0.56 times the niobium content by at least about 1.4%; and d. where the carbon content exceeds 0.04% by weight, it is less than the sum of five times the titanium content and 10 times the niobium plus tantalum content.
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