Standard Products
Features
- 1) High Strength
- Beryllium Copper attains a high tensile strength to a maximum of 1500N/mm2 so is not likely to bend even under pressure.
- 2) High Electrical Conductivity
- The electrical conductivity of Beryllium Copper is 20 to 60% IACS so can be used as a high current density material.
- 3) High Fatigue Strength
- Beryllium Copper is known to have high fatigue strength against repeated motion, is reliable, and has extremely long-life.
- 4) Elevated Temperature Properties
- Beryllium Copper performs excellently at elevated temperatures so can be used in a wide range of temperatures.
- 5) Good Formability
- Using a solution heat treatment, Beryllium Copper is softened to facilitate complex shaping. After shaping, it can achieve the highest strength with an age-hardening process.
- 6) Corrosion Resistance
- Beryllium Copper is highly resistant to corrosion, so shows less corrosion under a variety of environmental conditions.
Characleristics
Age hardenable material can be formed into complicated shapes and precipitation hardened afterwards. Among Mill-hardened material, which dose not require heat-treatment after stamping or forming, "Type-B" and "Type-S" have especially well-balanced performance in strength and formability.
| Alloy (NGK) |
Alloy 25 |
Alloy 11 |
| Chemical Composition |
Be |
1.80 - 2.00 |
0.2 - 0.6% |
| Ni+Co |
0.20%min. |
1.4 - 2.2% |
| Ni+Co+Fe |
0.6% |
- |
| Cu+Be+Co+Ni |
99.5%min. |
99.5%min. |
| Tensile Strangth N/mm3 |
Age Hardenable |
| O |
390 - 540 |
295 - 450 |
| 1/4H |
620 - 805 |
- |
| 3/4H |
835 - 1070 |
490 - 635 |
| After Age Hardening |
| OT |
1100 - 1380 |
690 - 895 |
| 1/4HT |
1210 - 1450 |
- |
| 3/4HT |
1300 - 1590 |
790 - 965 |
| Electrical Conductivity after Age Hardening (%IACS) |
22%min. |
50%min. |
Tensile Strength and Electrical Conductivity
Tolerance
| Diameter (mm) |
Tolerance (mm) |
| 0.1 incl. 0.25 and under |
±0.005 |
| 0.25 over 0.30 and under |
±0.008 |
| 0.30 over 0.50 and under |
±0.010 |
| 0.50 over 1.0 and under |
±0.015 |
| 1.0 over 2.0 and under |
±0.020 |
| 2.0 over 3.5 and under |
±0.025 |
* Please contact us regarding special requirement.
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Mill-hardened Products
Features
- Due to a straightening process during manufacturing, Beryllium Copper fine wire requires no further straightening when used.
- Plated wire, in particular, has excellent solderability.
- As it is age-hardened during the manufacturing process, Beryllium Copper fine wire is hard enough to avoid deformation under high temperature conditions.
Characleristics
- Symbol
- C1720W-HT
- Tensile Strength
- 1300N/mm2min.
- Diameter Tolerance
- +,- 0.002mm
- Length Tolerance
- +,- 0.2mm
- Straightness
- 50µm/30mm max.
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