GB535681A - Improvements in and relating to copper base alloys - Google Patents
Improvements in and relating to copper base alloysInfo
- Publication number
- GB535681A GB535681A GB2958/40A GB295840A GB535681A GB 535681 A GB535681 A GB 535681A GB 2958/40 A GB2958/40 A GB 2958/40A GB 295840 A GB295840 A GB 295840A GB 535681 A GB535681 A GB 535681A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- beryllium
- alloys
- lithium
- feb
- 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.)
- Expired
Links
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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
535,681. Alloys; annealing. MALLORY METALLURGICAL PRODUCTS, Ltd. Feb. 16, 1940, No. 2958. Convention date, Feb. 24, 1939. [Classes 72 and 82 (i)] Copper alloys having age hardening properties contain 0.05-5 per cent of beryllium and 0.002-0.1 per cent. of lithium with or without one or more other constituents such as 1.5-3 per cent. of cobalt, 0.5-3 per cent of cadmium, or 0.5-5 per cent. of silver. The beryllium may be added as a copper alloy containing up to 10 per cent. of beryllium, and the lithium content may be produced by the addition of 0.005-0.3 per cent. of lithium, a further 0.005-0.3 per cent. being added just before pouring. Age hardening may be effected by cooling quickly from above 600‹C., followed by re-heating to below 600‹C., coldworking being if desired applied before or after the first heat-treatment or both. The Specification as open to inspection under Sect. 91 describes also manganese as a constituent of the alloys. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US535681XA | 1939-02-24 | 1939-02-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB535681A true GB535681A (en) | 1941-04-17 |
Family
ID=21985152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2958/40A Expired GB535681A (en) | 1939-02-24 | 1940-02-16 | Improvements in and relating to copper base alloys |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB535681A (en) |
-
1940
- 1940-02-16 GB GB2958/40A patent/GB535681A/en not_active Expired
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