bercoweld® A300
bercoweld® A300 is a high-strength welding wire, also spark-proof. Resistant to seawater, wear, and abrasion. Resistant to cavitation and erosion. Buildup and join welding on aluminum bronzes. Especially for ship propellers, slide rails, raceways, valve control housings.
Standardization and composition
| ISO 24373 | CuMn13Al8Fe3Ni2 Cu6338 |
|---|---|
| Cu | balance |
| AL | 7.00 - 8.50 |
| Ni | 1.50 - 3.00 |
| Fe | 2.00 - 4.00 |
| Mn | 11.00 - 14.00 |
| Others | max. 0.5 |
Physical properties
| Density (kg/dm³) | 7.4 |
|---|---|
| Melting range (°C) | 945 - 985 |
| Thermal conductivity (W / m x K) | 30 |
| Coefficient of linear mean expansion (10-6/K) | 21.5 |
| Electrical conductivity (m / Ω x mm²) | 3 - 5 |
| Resistivity (Ω x mm² /m) | 0.20 - 0.333 |
Mechanical properties of the weld joint (standard data)
| Heat treatment | non treated |
|---|---|
| Tensile strength (MPa) | 900 |
| Elongation (%) | 10 |
| Brinell hardness (HB 2.5/62.5) | 290 |
| Notched bar impact test (Av (J)) | 180 |
Delivery options
| Make-up | Weight/Length | Dimension |
|---|---|---|
| SD300 / BS300 / K300 | 15 kg | 1.20 / 1.60 mm |
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