bedra 270
Copper Nickel Silicon
Characteristics:
It is a high-performance alloy with low nickel and silicon content. It is precipitation hardened, offering high strength, hardness, good electrical conductivity, excellent wear resistance, and superior formability. It is an ideal substitute for beryllium copper alloys.
Typical applications:
Test probes for power batteries, electrodes for resistance welding, high-performance connectors, and die parts for die casting.
Standardization and composition
| Cu | 90.0-98.5% |
|---|---|
| Ni | 0.4-2.0% |
| Si | 1.0-5.0% |
| Other | 0.01-3.0% |
Physical properties①
Note①：The testing temperature is 20℃. Note②：The testing temperature range is 20℃ to 300℃.
| Density (g/cm³) | 8.8 |
|---|---|
| Electrical conductivity (%IACS) | 40 |
| Thermal conductivity (W / m x K) | 180 |
| Coefficient of thermal expansion② (10-6/K) | 18 |
| Modulus of elasticity (GPa) | 130 |
Fabrication Properties
Note③：C36000 = 100%
| Capacity for being cold worked | Good |
| Capacity for being hot formed | Good |
| Resistance welding | Fair |
| Machinability rating③ | 20% |
Mechanical Properties④
Note④：bedra technical standards
| Diameter (mm) | Temper | Tensile Strength (MPa min.) | Yield Strength (MPa min.) | Elongation (% min.) | Hardness (HV5 min.) |
|---|---|---|---|---|---|
| 10 < Ф ≤ 30 | TH04 | 800 | 700 | 10 | 250 |
| 10 < Ф ≤ 30 | TD04 | 600 | 500 | 10 | 170 |
Dimension Tolerance and Delivery Form
Note⑤：The tolerances listed in the table are specified as all plus or all minus. When tolerances are specified as plus and minus (±), half the values given.
| Straight bar | ||||
| Diameter (mm) | Tolerance⑤ (mm) | Ovality (mm) | Length (mm. max.) | Straightness (mm/m max.) |
| 3.0 ≤ Φ < 10 | 0.04 | 0.020 | 2500 | 0.5 |
| 10 ≤ Φ < 18 | 0.05 | 0.025 | 3600 | 0.5 |
| 16 ≤ Φ < 30 | 0.10 | 0.040 | 3600 | 0.8 |
| 25 ≤ Φ < 50 | 0.15 | 0.050 | 3600 | 0.8 |
Further product information
PDF Datasheet | EN PDF Datasheet | VI PDF Datasheet | ZH
Please contact us
Sales Asia-Pacific (Excluding-India)
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Berkenhoff GmbH (headquarters)
- Kinzenbach plant
- Berkenhoffstrasse 14
- 35452 Heuchelheim
- Germany
- +49 641 601 0
- +49 641 601 222
- info(at)bedra.com
Berkenhoff GmbH
- Merkenbach plant
- Rehmühle 1
- 35745 Herborn
- Germany
- +49 2772 5002 0
- +49 2772 5002 155
- info(at)bedra.com
bedra Vietnam Alloy Material Co., Ltd
- Lot CN-06, Hoa Phu Industrial Park,
Mai Dinh Commune,
Hiep Hoa District, Bắc Ninh Province,
Vietnam
- +84 2043900104
- +84 2043900110
- info-asia(at)bedra.com
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