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Beryllium Copper Alloys
Technical Data Sheet
| Chemical Composition Limits | ||||||
| Weight % | Be | Co | Co+Ni+Fe | Pb | Others | Cu |
| Alloy 25 (Co) | 1.8-2.0 | 0.2 % min | 0.6% max | - | 0.5 % | Rem |
| Alloy 33-25 (Pb) | 1.8-2.0 | 0.2% min | 0.6% min | 0.2% min | 0.5% max | Rem |
| Alloy 165 | 1.6-1.8 | 0.2% min | 0.6% max | - | 0.5% max | Rem |
| Alloy 10 | 0.4-0.7 | 2.4-2.7 | - | - | 0.5% max | Rem |
| Be | Ni | Others | Cu | |||
| Alloy 14 | 0.4-0.6 | 1.8-2.2 | - | - | 0.5% max | Rem |
Beryllium Copper (High Conductivity Metals)
| Alloy Designation | Form/Availability | Characteristics |
| Beryllium Copper Alloy 25 (Co) | Plate, Strip, Rod, Wire, Hollows | very high strength alloy, good conductivity |
| Beryllium Copper Alloy 33-25 (Co) | Rod, Wire | free machining very high strength alloy good conductivity |
| Beryllium Copper Alloy 165 (Co) | Strip, Rod, Wire | high strengh alloy, good conductivity |
| Beryllium Copper Alloy 10 (Co) | Plate, Strip, Rod, Wire | good strength and high conductivity |
| Beryllium Copper Alloy 14 | Plate, Strip, Rod, Wire | good strength and high conductivity |
| Authority | Specification | Alloy | Form |
| ASTM | B194 B196 B197 B534 | 25 and 165 25, 165 and 33-25 25 10 and 14 | Strip Rod Wire Strip |
| CDA and SAE | CA 172 CA 170 CA 173 CA 175 | 25 165 33-25 10 | Strip Strip Wire Strip |
| Federal USA | QQ-C-530 QQ-C-533 | 25 and 33-25 25 and 165 | Rod Strip |
| British Standard | BS 2870 BS 2873 | Be 1.7 to 1.9 Be 1.7 to 1.9 | Strip |
| British Standard | BSB28 BSB29 BSB30 BSB31 BSB32 BSB33 | 25 25 25 25 25 25 | Strip W (A) |
| DIN | 17866 17670 1777 | 25,165,10,14 | Strip, Rod and Wire |
