1.1 ,This specification establishes the requirements for copper-beryllium alloy rod and bar in straight lengths. The following three alloys are included:
| Copper Alloy | Previously Used | Nominal Beryllium |
| , | , | , |
| C17000 | Alloy 165 | 1.7 |
| C17200 | Alloy ,25 | 1.9 |
| C17300 | , | 1.9 |
| , | , | +0.4 lead |