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[China]
Trade Verify
Address: No. 388 Pangu Road, Baoshan district, Shanghai, 201999, China
Contact name:Martin Lee
Shanghai Tankii Alloy Material Co.,Ltd |
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Verified Suppliers
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Copper-beryllium alloys are mainly based on copper with a beryllium
addition. High strength beryllium copper alloys contain 0.4-2% of
beryllium with about 0.3 to 2.7% of other alloying elements such as
nickel, cobalt, iron or Lead. The high mechanical strength is
achieved by precipitation hardening or age hardening.
Beryllium Copper is a copper alloy with the optimum combination of
mechanical and physical properties such as tensile strength,
fatigue strength, performance under elevated temperatures,
electrical conductivity, bending formability and corrosion
resistance. Beryllium Copper is widely used as contact springs in
various applications like connectors, switches, relays, etc.
The copper-beryllium alloys processed by Tankii offer a wide combination of mechanical and electrical properties which is unique for copper alloys. The mechanical strength achieved after heat treatment ranks highest amongst all the copper alloy materials and is combined with a high electrical conductivity which outperforms that of bronzes.
Our alloys combine a range of properties particularly suited to meet the exacting requirements of many applications in the automotive, electronic, aeronautical, Oil&Gas, watch, electro-chemical industries, etc. Beryllium Copper is widely used in those fields as contact springs in various applications like connectors, switches, relays, etc. Tankii offers a variety of Beryllium Copper alloys in several tempers to cover different applications.
Chemical Composition
| ASTM | Cu | Ni | Co | Be |
| C17200 | Balance | Ni+Co≥0.2,Ni+Co+Fe≤0.6 | 1.80-2.10 | |
| C17000 | Balance | Ni+Co≥0.2,Ni+Co+Fe≤0.6 | 1.60-1.85 | |
| C17300 | Balance | Ni+Co≥0.2,Ni+Co+Fe≤0.6 | 1.85-2.10 | |
| ASTM | Cu | Ni | Co | Be |
| C17500 | Balance | - | 2.4-2.7 | 0.4-0.7 |
| C17510 | Balance | 1.4-2.2 | 0.3 | 0.2-0.6 |
| Density (g/cm3) | 8.36 |
| Density before age hardening (g/cm3 | 8.25 |
| Elastic Modulus (kg/mm2 (103)) | 13.40 |
| Thermal Expansion Coefficient (20 °C to 200 °C m/m/°C) | 17 x 10-6 |
| Thermal Conductivity (cal/(cm-s-°C)) | 0.25 |
| Melting Range (°C) | 870-980 |
| status | Tensile strength (Kg/mm3) | Hardness (HV) | Conductivity ( IACS%) | Elongation (%) |
| H | 70-85 | 210-240 | 22 | 2-8 |
| 1/2H | 60-71 | 160-210 | 22 | 5-25 |
| 0 | 42-55 | 90-160 | 22 | 35-70 |
| status | Tensile strength (Kg/mm3) | Hardness (HV) | Conductivity (IACS%) | Elongation (%) |
| H | 130-151 | 380-420 | 22 | 1-5 |
| 1/2H | 126-147 | 370-410 | 22 | 2-7 |
| 0 | 112-135 | 350-339 | 22 | 3-11 |
Features
1. High thermal conductivity
2. High corrosion resistance, especially suitable for
polyoxyethylene (PVC) products mold.
3. High hardness, wear resistance and toughness, as inserts used
with mould steel and aluminium can make the mold play a highly
efficient, prolong the service life.
4. Polishing performance is good, can achieve high mirror surface
precision and complicated shape design.
5. Good tackiness resistance, easy to welding with other metal,
easy to machining, there is no need additional heat treatment.
