bedra 18160
Copper Chromium Zirconium
Characteristics:
It combines excellent electrical and thermal conductivity with enhanced mechanical strength and resistance to softening at elevated temperatures, achieved through precipitation hardening. Zirconium prevents electrode sticking during spot welding of galvanized steel, while a minor addition of silicon (Si) further improves the alloy's thermal stability.
Typical applications:
Due to its superior thermal stability, this alloy is a preferred choice for resistance welding applications, including welding wheels, spot welding electrodes, seam welding wheels and tips, and contact tips. It is also used for mold inserts in non-ferrous metal casting molds.
Standardization and composition
| UNS | C18150/C18160 |
|---|---|
| EN | / |
| JIS | / |
| GB | / |
| Cu | balance |
| Cr | 0.5-1.5% |
| Zr | 0.02-0.20% |
| Si | ≤ 0.01-0.06% |
| Fe | ＜ 0.1% |
| Ni | ＜ 0.1% |
Physical properties①
Note①：The testing temperature is 20℃. Note②：The testing temperature range is 20℃ to 300℃.
| Density (g/cm³) | 8.9 |
|---|---|
| Melting point(℃) | 1080 |
| Electrical conductivity (%IACS) | 75 |
| Thermal conductivity (W / m x K) | 324 |
| Coefficient of thermal expansion② (10-6/K) | 16.5 |
| Modulus of elasticity (GPa) | 117 |
| Softening temperature(℃) | 550 |
Fabrication Properties
Note③：C37700 = 100% Note④：C36000 = 100%
| Capacity for being cold worked | Good |
| Capacity for being hot worked | Good |
| Brazing | Good |
| Resistance welding | Good |
| Forgeability rating ③ | 80% |
| Machinability rating④ | 20% |
Mechanical Properties⑤
Note⑤：bedra technical standards
| Diameter (mm) | Temper | Tensile Strength (MPa min.) | Yield Strength (MPa min.) | Elongation (% min.) |
|---|---|---|---|---|
| 8 ≤ Φ ≤ 12 | TH04 | 520 | 480 | 8 |
Dimension Tolerance and Delivery Forms
Note⑥：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) | Tolerance⑥ (mm) | Ovality (mm) | Length (mm. max.) | Straightness (mm/m max.) |
| 8 ≤ Φ ≤ 10 | 0.06 | 0.03 | 4000 | 1.0 |
| 10 ＜ Φ ≤ 12 | 0.10 | 0.05 | 4000 | 1.0 |
Other Delivery Forms
Plates, Profiles, Busbars, Tubes
Further product information
PDF Datasheet | EN PDF Datasheet | VI PDF Datasheet | ZH
Please contact us
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- Kinzenbach plant
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- 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
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