CA2630391A1 - Metal alloy - Google Patents
Metal alloy Download PDFInfo
- Publication number
- CA2630391A1 CA2630391A1 CA002630391A CA2630391A CA2630391A1 CA 2630391 A1 CA2630391 A1 CA 2630391A1 CA 002630391 A CA002630391 A CA 002630391A CA 2630391 A CA2630391 A CA 2630391A CA 2630391 A1 CA2630391 A1 CA 2630391A1
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- CA
- Canada
- Prior art keywords
- nickel
- copper
- mass
- iron
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/06—Alloys based on copper with nickel or cobalt as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/002—Alloys based on nickel or cobalt with copper as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Conductive Materials (AREA)
- Laminated Bodies (AREA)
- Heat Treatment Of Steel (AREA)
- Powder Metallurgy (AREA)
- Contacts (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Catalysts (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
A metal alloy is primarily formed of copper, nickel, magnesium and iron. The main constituents are copper and nickel. The contents of magnesium and iron are increased considerably in comparison with the prior art conventional alloys.
The novel alloy has the following constituents in the following proportions (in %
by mass and/or % by weight): copper (40% to 61 %), nickel (35% to 45%), manganese (3.9%
to 10%), iron (0.1% to 5%); and other materials, such as carbon, silicon, aluminum, magnesium, titanium, chromium, rare earths, molybdenum, and/or yttrium (at most 2% in total), with the sum of the components amounting to 100 % by mass or, respectively, to 100 % by weight.
The novel alloy has the following constituents in the following proportions (in %
by mass and/or % by weight): copper (40% to 61 %), nickel (35% to 45%), manganese (3.9%
to 10%), iron (0.1% to 5%); and other materials, such as carbon, silicon, aluminum, magnesium, titanium, chromium, rare earths, molybdenum, and/or yttrium (at most 2% in total), with the sum of the components amounting to 100 % by mass or, respectively, to 100 % by weight.
Description
METAL ALLOY
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims the priority, under 35 U.S.C. 119, of Austrian patent applications A 733/2007, filed May 10, 2007, and A 2091/2007, filed Dec.
20, 2007; the prior applications are herewith incorporated by reference in their entirety.
BACKGROUND OF THE INVENTION
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims the priority, under 35 U.S.C. 119, of Austrian patent applications A 733/2007, filed May 10, 2007, and A 2091/2007, filed Dec.
20, 2007; the prior applications are herewith incorporated by reference in their entirety.
BACKGROUND OF THE INVENTION
[0002] Field of the Invention:
[0003] The present invention relates to a metal alloy which essentially consists of copper, nickel, magnesium and iron. The main constituents of the alloy are copper and nickel.
[0004] Known alloys of this type have a great number of properties, on the basis of which they can be used in many technical areas and for various purposes. On account of their corrosion resistance, their mechanical strength and their ductility, they can be used in particular in the chemical industries, as well as in the oil industry, in chemical engineering and chemical apparatus construction, and in desalination technology. They can also be used for cable reinforcements, for producing spectacle frames and in many other technical areas, as well as for electrotechnical uses. Moreover, these known alloys can be used for coatings.
They can also be used as welding fillers.
They can also be used as welding fillers.
[0005] These known alloys are produced in the form of castings, powders, plates, sheets, strips, foiis, rods, tubes and wires, which serve as starting products for the production of many components.
[0006] In order to satisfy the requirements they have to meet when they are used, these metal alloys must have good processing properties, that is to say they must allow good casting and cold and hot forming, must aiso allow for good welding and good soldering or brazing, must allow good machining, good grinding and polishing and also allow themselves to be electroplated.
[0007] All these requirements are met for example by the NiCu30Fe alloy material No. 2.4360 in accordance with DIN 17743. That known alloy has the following constituents in the proportions given below (in % by mass and/or %
by weight):
nickel at least 63%
copper 28% to 34%
iron 1% to 2.5%
manganese at most 2%
other materials at most 1%
by weight):
nickel at least 63%
copper 28% to 34%
iron 1% to 2.5%
manganese at most 2%
other materials at most 1%
[0008] One of the reasons for the good material properties explained above is that the individual alloying constituents are completely soluble in one another, whereby they form a closed solid-solution series with no miscibility gaps and as a result of which the alloy is completely homogeneous within itself.
[0009] The prior art metal alloy and similar further nickel-copper alloys have very high proportions of nickel, which must be taken into consideration because the world market price of nickel is many times higher than the price of copper, for which reason these known alloys are very expensive. Likewise known copper-nickel alloys with low nickel contents and only small additions of further alloying elements have in turn poorer properties, for example with regard to mechanical strength and ductility or with regard to their corrosion resistance in aggressive media.
SUMMARY OF THE INVENTION
SUMMARY OF THE INVENTION
[0010] It is accordingly an object of the invention to provide a metal alloy, which overcomes the above-mentioned disadvantages of the heretofore-known devices and methods of this general type and which provides for an alloy which has the same advantageous properties as the prior art alloys, in particular as the alloy NiCu30Fe, but which however contains a much reduced proportion of nickel in comparison with the latter, as a result of which it is significantly less expensive than the known alloy.
[0011] With the foregoing and other objects in view there is provided, in accordance with the invention, a copper-nickel metal alloy that is primarily formed of copper, nickel, magnesium and iron. The main constituents are copper and nickel. The contents of magnesium and iron are increased considerably in comparison with the prior art conventional alloys. The novel alloy according to the invention has the following constituents in the following proportions (in % by mass and/or wt.%):
copper 40% to 61 %
nickel 35% to 45%
manganese 3.9% to 10%
iron 0.1 1o to 5%
other materials (e.g., carbon, silicon, aluminum, magnesium, at most 2% in total titanium, chromium, rare earths, molybdenum, yttrium) with the sum of the individual components adding to 100 % by mass or 100% by weight.
copper 40% to 61 %
nickel 35% to 45%
manganese 3.9% to 10%
iron 0.1 1o to 5%
other materials (e.g., carbon, silicon, aluminum, magnesium, at most 2% in total titanium, chromium, rare earths, molybdenum, yttrium) with the sum of the individual components adding to 100 % by mass or 100% by weight.
[0012] On account of its much lower proportion of nickel, this alloy is significantly less expensive than the known nickel-copper alloys, without its properties being made any worse than the known alloys. On account of the much higher proportion of manganese in comparison with the prior art, this alloy also has particularly high heat resistance, which is required for many applications.
[0013] This alloy preferably has the following proportions (in % by mass and/or % by weight):
copper 46% to 59%
nickel 37% to 42%
manganese 3.8% to 7%
iron 0.2% to 5%
other materials at most 2% in total.
with the sum of the selected components adding to 100 % by mass or 100% by weight.
copper 46% to 59%
nickel 37% to 42%
manganese 3.8% to 7%
iron 0.2% to 5%
other materials at most 2% in total.
with the sum of the selected components adding to 100 % by mass or 100% by weight.
[0014] A specific preferred alloy has the following constituents in the following proportions (in % by mass or wt.%):
copper 55.03%
nickel 39.66%
manganese 4.64%
iron 0.46%
carbon 0.05%
silicon 0.06%
aluminum 0.02%
magnesium 0.03%
titanium 0.01%
chromium 0.02%
other materials 0.02%
copper 55.03%
nickel 39.66%
manganese 4.64%
iron 0.46%
carbon 0.05%
silicon 0.06%
aluminum 0.02%
magnesium 0.03%
titanium 0.01%
chromium 0.02%
other materials 0.02%
[0015] A further preferred alloy has the following constituents in the following proportions (in % by mass and/or % by weight):-copper 52.87%
nickel 39.16%
manganese 3.98%
iron 3.75%
carbon 0.05%
silicon 0.09%
aluminum 0.03%
magnesium 0.03%
titanium 0.01%
chromium 0.02%
other materials 0.01%
nickel 39.16%
manganese 3.98%
iron 3.75%
carbon 0.05%
silicon 0.09%
aluminum 0.03%
magnesium 0.03%
titanium 0.01%
chromium 0.02%
other materials 0.01%
[0016] Other features which are considered as characteristic for the invention are set forth in the appended claims.
[0017] Although the invention is described herein as embodied in metal alloy, it is nevertheless not intended to be limited to the details shown, since various modifications and structural changes may be made therein without departing from the spirit of the invention and within the scope and range of equivalents of the claims.
[0018] The construction and method of operation of the invention, however, together with additional objects and advantages thereof will be best understood from the following description of the four alloys representing specific embodiments of the invention.
DETAILED DESCRIPTION OF THE INVENTION
DETAILED DESCRIPTION OF THE INVENTION
[0019] Example 1:
[0020] In this example the alloy has the following constituents in the following proportions (in % by mass and/or % by weight):
copper 40% to 61 %
nickel 35% to 45%
manganese 3.9% to 10%
iron 0.1 % to 5%
other materials, such as carbon, silicon, aluminum, magnesium, at most 2% in total titanium, chromium, rare earths, molybdenum, yttrium with the sum of the selected components adding to 100 % by mass or 100% by weight.
copper 40% to 61 %
nickel 35% to 45%
manganese 3.9% to 10%
iron 0.1 % to 5%
other materials, such as carbon, silicon, aluminum, magnesium, at most 2% in total titanium, chromium, rare earths, molybdenum, yttrium with the sum of the selected components adding to 100 % by mass or 100% by weight.
[0021] Example 2:
[0022] In this example the alloy has the following constituents in the following proportions (in % by mass and/or % by weight):
copper 46% to 59%
nickel 37% to 42%
manganese 3.8% to 7%
iron 0.2% to 5%
other materials, such as carbon, silicon, aluminum, magnesium, at most 2% in total titanium, chromium, rare earths, molybdenum, yttrium with the sum of the selected components adding to 100 % by mass or 100% by weight.
copper 46% to 59%
nickel 37% to 42%
manganese 3.8% to 7%
iron 0.2% to 5%
other materials, such as carbon, silicon, aluminum, magnesium, at most 2% in total titanium, chromium, rare earths, molybdenum, yttrium with the sum of the selected components adding to 100 % by mass or 100% by weight.
[0023] Example 3:
[0024] In this example the alloy has the following constituents in the following proportions (in % by mass and/or % by weight):
copper 55.03%
nickel 39.66%
manganese 4.64%
iron 0.46%
carbon 0.05%
silicon 0.06%
aluminum 0.02%
magnesium 0.03%
titanium 0.01%
chromium 0.02%
other materials 0.02%
copper 55.03%
nickel 39.66%
manganese 4.64%
iron 0.46%
carbon 0.05%
silicon 0.06%
aluminum 0.02%
magnesium 0.03%
titanium 0.01%
chromium 0.02%
other materials 0.02%
[0025] Example 4:
[0026] In this example the alloy has the following constituents in the following proportions (in % by mass and/or % by weight):
copper 52.87%
nickel 39.16%
manganese 3.98%
iron 3.75%
carbon 0.05%
silicon 0.09%
aluminum 0.03%
magnesium 0.03%
titanium 0.01%
chromium 0.02%
other materials 0.01%
copper 52.87%
nickel 39.16%
manganese 3.98%
iron 3.75%
carbon 0.05%
silicon 0.09%
aluminum 0.03%
magnesium 0.03%
titanium 0.01%
chromium 0.02%
other materials 0.01%
[0027] All of these alloys have a comparatively high proportion of copper and a comparatively low proportion of nickel, as a result of which they are comparatively low in cost in comparison with known Ni-Cu alloys on account of the considerable difference in the price of nickel and copper. Quite apart from this, these alloys are highly corrosion-resistant, have high strengths and can be processed very well on account of their very homogeneous structure, as a result of which they can be used in a wide variety of areas.
[0028] For example in comparison with NiCu30Fe, the alloy according to Example 3 and the alloy according to Example 4 have under the same processing conditions in rolling, drawing, intermediate annealing and final annealing very similar mechanical values on round and flat products, which has very favorable effects on their processability: in Table 1 below, the tensile strengths Rm (in N/mm2) and the elongation to fracture A200 (in %, based on a measured length of 200 mm) are compared between the alloy according to Example 3, the alloy according to Example 4 and the known alloy NiCu30Fe, in each case in the form of round wire of 1.80 mm in diameter and flat wire of 12.7 x 0.38 mm, both soft-annealed.
[0029] Table 1 Round wire Flat wire Rm (N/mm2) A200 (%) Rm (N/mm2) A200 (%) Alloy according to Example 3 561 34 533 29 Alloy according to Example 4 576 33 547 28 Alloy NiCu30Fe 547 34 525 29 [0030] The mechanical values of all three alloys compared are to be considered as the same within the usual batch-dependent variations. Similarly, for example, the stability with respect to softening during brazing at temperatures of 600 C and above is to be considered as equally good, much better than in the case of copper-nickel alloys without these high manganese and iron contents.
[0031] A further example of the comparatively good properties of the alloys according to Example 3 and according to Example 4 in comparison with alloys with a higher nickel content is the comparatively good corrosion behavior of the alloys according to Example 3 and according to Example 4 as compared with NiCu30Fe.
The results of two comparative corrosion tests are given below:
The results of two comparative corrosion tests are given below:
[0032] a) Test in 62% CaCI2 at 120 C for 5 days:
[0033] The loss in weight (g/m2 h) in the case of NiCu30Fe is 0.010, in the case of the alloy according to Example 3 it is 0.014, i.e., the alloy according to Example 3 is approximately 71 % as corrosion resistant under these conditions as NiCu30Fe, with a nickel content of about 59% in comparison with NiCu30Fe, and, like NiCu30Fe, also shows no signs of harmful pitting.
[0034] b) Test in 27 g/l of NaCI at 80 C, 6 bar H2S, 6 bar CO2 for 14 days:
[0035] The loss in weight (g/m2 h) in the case of NiCu30Fe is 0.0186, in the case of the alloy according to Example 4 it is 0.0100, i.e. the alloy according to Example 4 is approximately 186% (that is almost twice) as corrosion resistant under such conditions as NiCu30Fe, with a nickel content of about 59% in comparison with NiCu30Fe, and, in the same way as NiCu30Fe, also shows no signs of harmful pitting.
Claims (8)
1. A copper-nickel metal alloy, consisting essentially of the following constituents in the following proportions (in % by mass and/or % by weight):
copper 40% to 61 %
nickel 35% to 45%
manganese 3.9% to 10%
iron 0.1 % to 5%
other materials at most 2% in total.
with the sum of the selected components adding to 100 % by mass or 100% by weight.
copper 40% to 61 %
nickel 35% to 45%
manganese 3.9% to 10%
iron 0.1 % to 5%
other materials at most 2% in total.
with the sum of the selected components adding to 100 % by mass or 100% by weight.
2. The metal alloy according to claim 1, having the following proportions (in % by mass and/or % by weight):
copper 46% to 59%
nickel 37% to 42%
manganese 3.8% to 7%
iron 0.2% to 5%
other materials at most 2% in total.
with the sum of the selected components adding to 100 % by mass or 100% by weight.
copper 46% to 59%
nickel 37% to 42%
manganese 3.8% to 7%
iron 0.2% to 5%
other materials at most 2% in total.
with the sum of the selected components adding to 100 % by mass or 100% by weight.
3. The metal alloy according to claim 1, consisting of copper, nickel, manganese, iron, and other materials in the following proportions (in % by mass and/or %
by weight):
copper 55.03%
nickel 39.66%
manganese 4.64%
iron 0.46%
other materials 0.21%.
by weight):
copper 55.03%
nickel 39.66%
manganese 4.64%
iron 0.46%
other materials 0.21%.
4. The metal alloy according to claim 3, wherein said other materials are present in the following proportions (in % by mass and/or % by weight of the total alloy):
carbon 0.05%
silicon 0.06%
aluminum 0.02%
magnesium 0.03%
titanium 0.01%
chromium 0.02%
further materials 0.02%
carbon 0.05%
silicon 0.06%
aluminum 0.02%
magnesium 0.03%
titanium 0.01%
chromium 0.02%
further materials 0.02%
5. The metal alloy according to claim 4, wherein said further materials are selected from the group consisting of the rare earths, molybdenum, and yttrium.
6. The metal alloy according to claim 1, consisting of copper, nickel, manganese, iron, and other materials in the following proportions (in % by mass and/or %
by weight):
copper 52.87%
nickel 39.16%
manganese 3.98%
iron 3.75%
other materials 0.24%.
by weight):
copper 52.87%
nickel 39.16%
manganese 3.98%
iron 3.75%
other materials 0.24%.
7. The metal alloy according to claim 6, wherein said other materials are present in the following proportions (in % by mass and/or % by weight of the total alloy):
carbon 0.05%
silicon 0.09%
aluminum 0.03%
magnesium 0.03%
titanium 0.01%
chromium 0.02%
further materials 0.02%.
carbon 0.05%
silicon 0.09%
aluminum 0.03%
magnesium 0.03%
titanium 0.01%
chromium 0.02%
further materials 0.02%.
8. The metal alloy according to claim 7, wherein said further materials are selected from the group consisting of the rare earths, molybdenum, and yttrium.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT7332007 | 2007-05-10 | ||
| ATA733/2007 | 2007-05-10 | ||
| ATA2091/2007 | 2007-12-20 | ||
| AT0209107A AT505202B1 (en) | 2007-05-10 | 2007-12-20 | METAL ALLOY |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2630391A1 true CA2630391A1 (en) | 2008-11-10 |
Family
ID=39645294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002630391A Abandoned CA2630391A1 (en) | 2007-05-10 | 2008-05-05 | Metal alloy |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US20080279718A1 (en) |
| EP (1) | EP1990433B1 (en) |
| JP (1) | JP2008280614A (en) |
| KR (1) | KR20080099797A (en) |
| AT (2) | AT505202B1 (en) |
| BR (1) | BRPI0801523B1 (en) |
| CA (1) | CA2630391A1 (en) |
| DE (1) | DE502008000370D1 (en) |
| PL (1) | PL1990433T3 (en) |
| RU (1) | RU2453621C2 (en) |
| SI (1) | SI1990433T1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2553799C2 (en) * | 2013-11-12 | 2015-06-20 | Российская Федерация, от имени которой выступает Министерство промышленности и торговли Российской Федерации (Минпромторг России) | Wear and corrosion resistant copper-nickel alloy |
| RU2566098C1 (en) * | 2014-12-22 | 2015-10-20 | Юлия Алексеевна Щепочкина | Copper-based alloy |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE655931C (en) * | 1933-08-17 | 1938-01-27 | Eugen Vaders Dr | Payable copper-nickel alloy |
| DE1218161B (en) * | 1961-06-12 | 1966-06-02 | Isabellen Huette Heusler Komma | Use of a nickel-copper alloy for resistance wires or bands |
| GB1230196A (en) * | 1968-05-31 | 1971-04-28 | ||
| US3607242A (en) * | 1969-05-22 | 1971-09-21 | Driver Co Wilbur B | Electrical resistance alloy |
| SU456018A1 (en) * | 1972-07-05 | 1975-01-05 | Предприятие П/Я А-3700 | Copper based alloy |
| SU498136A1 (en) * | 1973-08-22 | 1976-01-05 | Предприятие П/Я В-8402 | Solder for high temperature soldering |
| JPS5345622A (en) * | 1976-10-07 | 1978-04-24 | Kowa Shindoushiyo Kk | German silver alloy for spectacles |
| US4627959A (en) * | 1985-06-18 | 1986-12-09 | Inco Alloys International, Inc. | Production of mechanically alloyed powder |
| JPS6272498A (en) * | 1985-09-25 | 1987-04-03 | Toshiba Corp | Nickel-copper alloy for brazing titanium material |
| DD252618B1 (en) * | 1986-09-08 | 1989-08-23 | Akad Wissenschaften Ddr | CU-NI-BASED ALLOY |
-
2007
- 2007-12-20 AT AT0209107A patent/AT505202B1/en active
-
2008
- 2008-04-30 SI SI200830025T patent/SI1990433T1/en unknown
- 2008-04-30 EP EP08450066A patent/EP1990433B1/en not_active Not-in-force
- 2008-04-30 DE DE502008000370T patent/DE502008000370D1/en active Active
- 2008-04-30 PL PL08450066T patent/PL1990433T3/en unknown
- 2008-04-30 AT AT08450066T patent/ATE458072T1/en active
- 2008-05-05 CA CA002630391A patent/CA2630391A1/en not_active Abandoned
- 2008-05-07 KR KR1020080042233A patent/KR20080099797A/en not_active Application Discontinuation
- 2008-05-08 RU RU2008118382/02A patent/RU2453621C2/en active
- 2008-05-09 JP JP2008123104A patent/JP2008280614A/en active Pending
- 2008-05-09 BR BRPI0801523A patent/BRPI0801523B1/en not_active IP Right Cessation
- 2008-05-12 US US12/119,180 patent/US20080279718A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| SI1990433T1 (en) | 2010-06-30 |
| EP1990433A1 (en) | 2008-11-12 |
| US20080279718A1 (en) | 2008-11-13 |
| RU2008118382A (en) | 2009-11-20 |
| AT505202A1 (en) | 2008-11-15 |
| KR20080099797A (en) | 2008-11-13 |
| JP2008280614A (en) | 2008-11-20 |
| PL1990433T3 (en) | 2010-07-30 |
| BRPI0801523A2 (en) | 2008-12-30 |
| ATE458072T1 (en) | 2010-03-15 |
| EP1990433B1 (en) | 2010-02-17 |
| AT505202B1 (en) | 2009-07-15 |
| RU2453621C2 (en) | 2012-06-20 |
| DE502008000370D1 (en) | 2010-04-01 |
| BRPI0801523B1 (en) | 2015-09-15 |
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| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |
Effective date: 20150825 |