ERCuNi Copper-Nickel Alloy Welding Wire
ERCuNi Copper-Nickel Alloy Welding Wire Application
ERCuNi Copper-Nickel Alloy Welding Wire is especially good for seawater corrosion resistance. It is particularly suitable for the welding and hard facing of copper-nickel such as machinery, desalting of seawater, ship-building, oil refinery, and food processing industries. This copper-nickel alloy wire is also suitable for welding of nonferrous alloys, dissimilar steel materials.
This alloy can be used for dissimilar welding applications welding various copper-nickel alloys to nickel alloys and various other copper-nickel alloys. ERCuNi is occasionally used for overlay on carbon steel, but can only be used after applying a layer of ERNi-1 first.
ERCuNi Copper-Nickel Alloy Welding Wire Features
Higher resistance than copper
High tensile strength
Good bending proof performance
ERCuNi Copper-Nickel Alloy Welding Wire Physical and mechanical data
| Solids-Temperature | 1180℃ |
| Density | 8.9㎏/dm3 |
| Elongation | 36% |
| Liquids-Temperature | 1240℃ |
| Tensile Strength | 420N/mm2 |
| Brinell Hardness | 115HB |
ERCuNi Copper-Nickel Welding Wire CHEMICAL COMPOSITION(%)
| Standard | ISO24373 | GB/T9460 | BS EN14640 | AWS A5.7 | DIN 1733 |
| Class | Cu7158 | SCu7158 | Cu7158 | C71581 | 2.0837 |
| Alloy | CuNi30Mn1FeTi | CuNi30Mn1FeTi | CuNi30 | ERCuNi | SG-CuNi30Fe |
| Cu | bal. | bal. | bal. | bal. | bal. |
| Fe | 0.4-0.7 | 0.4-0.7 | 0.4-1.0 | 0.40-0.75 | 0.4-1.0 |
| Mn | 0.5-1.5 | 0.5-1.5 | 0.5-1.5 | 1 | 0.5-1.5 |
| Ni | 29.0-32.0 | 29.0-32.0 | 29.0-32.0 | 29.0-32.0 | 29.0-32.0 |
| P | 0.02 | max0.02 | 0.02 | 0.02 | max0.02 |
| Pb | 0.02 | max0.02 | 0.02 | 0.02 | max0.02 |
| Si | 0.25 | max0.25 | 0.25 | 0.25 | max0.2 |
| C | 0.04 | 0.05 | – | max0.05 | |
| Ti | 0.2-0.5 | 0.2-0.5 | 0.2-0.5 | 0.20-0.50 | 0.2-0.5 |
| S | 0.01 | max0.01 | 0.02 | – | max0.015 |
| Other | 0.5 | max0.5 | 0.4 | 0.5 | max0.4 |
Please note that the above specifications are “general specifications” that pertain to the majority of our production. These specifications should only be used for general, informational purposes. For the actual specification, please check with us when you place the order.
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