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| Beryllium bronze is of high strength, hardness
and elasticity. Wire and rod from it has been widely used in making
various electronic parts and is separable in electronic, aviation
and instrument industries. |
Mechanical Performance of beryllium wire and rod |
|
Type |
Condition |
DiameterΦm/m |
Tensile Strengthσ bN/mm2 |
Yield Strengthσ 0.2N/mm2 |
Hardness HRB |
Elongationσ % |
|
Wire
|
C |
- |
400-540 |
- |
- |
30-60 |
|
Y/4 |
- |
620-795 |
- |
- |
3-25 |
|
Y/2 |
- |
760-930 |
- |
- |
2-15 |
|
Y3/4 |
- |
895-1070 |
- |
- |
2-8 |
|
Y |
- |
965-1140 |
- |
- |
1-6 |
|
Rod |
C |
- |
410-590 |
140 |
45-85 |
20-60 |
|
Y |
≤10 |
660-900 |
520 |
88-103 |
8-30 |
|
＞10-≤20 |
620-860 |
520 |
88-102 |
8-30 |
|
＞20-≤40
|
590-830
|
520 |
88-101
|
8-20 |
| “C” Soft Condition “Y” Hard Condition |
Mechanical character after ageing process |
| Type |
Condition |
DiameterΦm/m |
Tensile Strengthσ bN/mm2 |
Yield Strengthσ 0.2N/mm2 |
HardnessHRB |
Elongationσ % |
| Wire
|
Cageing |
- |
1105-1380 |
- |
- |
- |
| Y4ageing |
- |
1205-1450 |
- |
- |
- |
| Y2ageing |
- |
1275-1480 |
- |
- |
- |
| Y3/4ageing |
- |
1310-1585 |
- |
- |
- |
| Yageing |
- |
1345-1585 |
- |
- |
- |
| Rod |
Cageing
|
≤10 |
1140-1380 |
1000 |
36-42 |
- |
| ＞10-≤20 |
1140-1380 |
900 |
36-42 |
- |
| Yageing |
≤10 |
1280-1550 |
1100 |
39-45 |
- |
| ＞10-≤20 |
1240-1500 |
1070 |
38-44 |
- |
| ＞20-≤40
|
1240-1480
|
1000
|
37-44
|
- |
| “C” Soft Condition “Y” Hard Condition |
Mechanical character after ageing process |
|
Type |
Condition |
Heating temperature（℃） |
Soaking time（hour） |
Explanation |
|
Wire |
C |
320°±10 |
3 |
a.The stove heats warm after feeds in raw material
b.The temperature and the time strictly control |
|
Y4 |
2.5 |
|
Y2Y3/4Y |
2 |
|
Rod |
C |
320°±10 |
3 |
|
Y |
2 |
|
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