bercoweld® A822
bercoweld® A822 is used for join welding between steel and CuAl alloys. High wear and abrasion resistance. Very good corrosion resistance against seawater. High pressure resistance, especially with solenoid valves.
Standardization and composition
| ISO 24373 | CuAl8Ni2Fe2Mn2 Cu6327 |
|---|---|
| Cu | balance |
| AL | 7.0 - 9.5 |
| Ni | 0.5 - 3.0 |
| Mn | 0.5 - 2.5 |
| Fe | 0.5 - 2.5 |
| Others | max. 0.4 |
Physical properties
| Density (kg/dm³) | 7.5 |
|---|---|
| Melting range (°C) | 1030 - 1050 |
| Thermal conductivity (W / m x K) | 50 |
| Coefficient of linear mean expansion (10-6) | 17 |
| Electrical conductivity (m / Ω x mm²) | 4.5 - 5.5 |
| Resistivity (Ω x mm² /m) | 0.20 |
Mechanical properties of the weld joint (standard data)
| Heat treatment | non treated |
|---|---|
| Tensile strength (MPa) | 530 |
| Elongation (%) | 30 |
| Brinell hardness (HB 2.5/62.5) | 140 |
| Notched bar impact test (Av (J)) | 70 |
Delivery options
| Make-up | Weight/Length | Dimension |
|---|---|---|
| Drum / bedrabox | 175 - 200 kg | 0.80 - 1.60 mm |
| SD300 / BS300 / K300 | 12 - 15 kg | 0.80 - 2.40 mm |
| H500 / H560 / H760 | 150 - 250 kg | 0.80 - 2.40 mm |
| Coils | 25 - 100 kg | 1.60 - 6.00 mm |
| Rods | 250 - 3000 mm | 1.60 - 6.00 mm |
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