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| APPENDIX B |
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Typical Hardness of Berylluim Copper Rod, Bar, Plate, Tube and Wire - Table 10 |
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| FORM | ALLOY | TEMPER | HEAT TREATMENT | SIZE DIAMETER OR DISTANCE BETWEEN PARALLEL SURFACES (in.) | ROCKWELL HARDNESS |
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ROD |
35, M25 | A | All Sizes | B45-85 | |
| H | Up to 3/8 Over 3/8 to 1 Over 1 |
B92-103 B91-102 B88-101 |
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| AT | 3 Hrs. at 625 ± 25F | All Sizes | C36-40 | ||
| HT | 2-3 hrs. at 625 ± 25F | Up to 3/8 Over 3/8 to 1 Over 1 |
C39-45 C38-44 C37-43 |
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| 165 | A | All Sizes | B45-25 | ||
| H | Up to 3/8 Over 3/8 to 1 Over 1 |
B92-103 B91-102 B88-101 |
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| AT | 3 hrs. at 625 ± 25F | All Sizes | C32-39 | ||
| HT | 2-3 hrs. at 625 ± 25F | Up to 3/8 Over 3/8 to 1 Over 1 |
C36-41 C35-40 C34-39 |
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| 3 & 10 | A | All Sizes | B20-50 | ||
| H | B60-30 | ||||
| AT | 3 hrs. at 900 ± 25F | B92-100 | |||
| HT | 2 hrs. at 900 ± 25F | B95-102 | |||
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WIRE* |
25, M25 | A | All Sizes | B45-85 | |
| H | Up to 0.080 Over 0.080 to 3/8 Over 3/8 |
B92-103 B88-101 B88-101 |
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| AT | 3 hrs. at 625 ± 25F | All Sizes | C36-41 | ||
| HT | 1 hr. at 625 ± 25F 1-1/2-3 hrs. at 625 ± 25F |
Up to 0.080 Over 0.080 to 3/8 Over 3/8 |
C39-46 C38-44 C37-44 |
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| * Except other than square. NOTE: Properties and appropriate heat treating time are a function of chemical composition, amount of cold work, product form and product size. Ask Brush Wellman for information about specific products. |
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