bedra 62300
Aluminum Bronze
Characteristics:
bedra 62300 is a copper-aluminum-iron ternary alloy that achieves higher strength and wear resistance through aluminum solid solution strengthening. Additionally, due to the formation of a dense aluminum oxide protective layer on the alloy surface, it exhibits enhanced high-temperature corrosion and oxidation resistance under atmospheric, freshwater, and seawater conditions. The alloy also offers good spark resistance, excellent hot workability, and can be welded using arc or gas welding methods, although it is not suitable for brazing.
Typical applications:
It is used in nuts, bolts, shafts, pump parts, valve seats, gears, cams, structural components, and condenser plates for power plants and desalination plants.
Standardization and composition
| UNS | C62300 |
|---|---|
| GB | QAl9-4 |
| Cu | balance |
| Al | 8.5-10.0% |
| Fe | 2.0-4.0% |
| Mn | ≤ 0.5% |
| Ni | ≤ 1.0% |
| Sn | ≤ 0.6% |
| Si | ≤ 0.25% |
| Others | ≤ 0.5% |
Physical properties①
Note①：The testing temperature is 20℃. Note②：The testing temperature range is 20℃ to 300℃.
| Density (g/cm³) | 7.66 |
|---|---|
| Electrical conductivity (%IACS) | 13 |
| Thermal conductivity (W / m x K) | 61 |
| Coefficient of thermal expansion② (10-6/K) | 16.2 |
| Modulus of elasticity (GPa) | 117 |
Fabrication Properties
Note③：C37700 = 100% Note④：C36000 = 100%
| Capacity for being cold worked | Fair |
| Capacity for being hot formed | Good |
| Brazing | Fair |
| Resistance welding | Good |
| Forgeability rating③ | 75% |
| Machinability rating④ | 50% |
Mechanical Properties
| Diameter (mm) | Temper | Tensile Strength (MPa min.) | Yield Strength (MPa min.) | Elongation (% min.) |
|---|---|---|---|---|
| Φ ≤ 12 | H02 | 620 | 310 | 12 |
| 12 < Φ ≤ 25 | H02 | 607 | 303 | 15 |
| 25 < Φ ≤ 50 | H02 | 579 | 276 | 15 |
| 50 < Φ ≤ 75 | H02 | 524 | 255 | 20 |
| 75 < Φ ≤ 100 | H02 | 517 | 207 | 20 |
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.) |
| 8.0 ≤ Φ ≤ 10 | 0.12 | 0.06 | 4000 | 1.0 |
| 10 < Φ ≤ 18 | 0.16 | 0.08 | 4000 | 1.0 |
| 18 < Φ ≤ 50 | 0.20 | 0.10 | 4000 | 1.0 |
| 50 < Φ ≤ 60 | 0.30 | 0.15 | 4000 | 1.0 |
| 60 < Φ ≤ 70 | 0.30 | 0.15 | 4000 | 3.0 |
| 70 < Φ ≤ 90 | 1.20 | 0.60 | 3000 | 3.0 |
| 90 < Φ ≤ 120 | 2.00 | 0.80 | 2000 | 5.0 |
Further product information
PDF Datasheet | EN PDF Datasheet | VI PDF Datasheet | ZH
Please contact us
Sales Asia-Pacific (Excluding-India)
Sales India
Sales North America
Sales Europe
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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