OK Autrod 19.49
A continuous solid Cu-Ni wire for welding of similar alloys like 90Cu10Ni-, 80Cu20Ni- and 70Cu30Ni-alloys. The nickel addition strengthens the weld metal and improves the corrosion resistance, particulary against salt water. The alloy is used for overlay welding of steels and widely used for welding of Cu-Ni components to desalination plants.
Typical Tensile Properties
| Condition | Elongation | Tensile Strength | Yield Strength |
| As Welded | 40 % | 350 MPa (51 ksi) | 180 MPa (26 ksi) |
Recommended Welding Parameters
| Current | Voltage | Wire Diameter | Wire Feed Speed | |
| 60-165 A | 13-17.5 V | 0.8 mm (0.030 in.) | 4.0-13.0 m/min (157-512 in./min) | |
| 80-210 A | 12.5-18 V | 1.0 mm (0.040 in.) | 4.0-12.0 m/min (157-472 in./min) | |
| 150-320 A | 16-29 V | 1.2 mm (0.047 in.) | 5.0-11.5 m/min (197-453 in./min) | |
Deposition Data
| Current | Diameter | Voltage | Wire Feed Speed |
| 60-165 A | 0.8 mm (.030 in.) | 13-17.5 V | 4-13 m/min (157.5-512 in./min) |
| 80-210 A | 1.0 mm (.040 in.) | 12.5-18 V | 4-12 m/min (157.5-472 in./min) |
| 150-320 A | 1.2 mm (.045 in.) | 16-29 V | 5-11.5 m/min (197-453 in./min) |
Classifications
| Wire Electrode |
SFA/AWS A5.7 : ERCuNi EN 14640 : S Cu 7158 (CuNi30) |
| Classifications |
EN ISO 24373 : |
Consumable Characteristics
| Alloy Type | Alloyed copper (Cu + 30 % Ni) |
| Shielding Gas | I1, I2, I3 (EN 439) |
Typical Weld Metal Analysis %
| Typical Wire Composition % | ||||||||||||||
| Al | C | Cu | Fe | Mn | Ni | P | Pb | Si | ||||||
| - | 0.02 % | Bal % | 0.5 % | 0.7 % | 31 % | - | - | 0.05 % | ||||||
| Typical Weld Metal Analysis % | ||||||||||||||
| 0.001 % | - | - | 0.6 % | 0.8 % | 31 % | 0.04 % | 0.005 % | 0.05 % | ||||||
Part Numbers and Accessories
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