| grade | GB | AWS | Product Name |
|---|---|---|---|
| S201 [Silk 201] | SCu1898 | ERCu | Specially made copper welding wire |
| S211 [Silk 211] | SCu6560 | ERCuSi-A | Silicon bronze welding wire |
| S212 [Silk 212] | SCu5180 | ERCuSn-A | Phosphor bronze welding wire |
| S213 [Silk 213] | SCu5210 | ERCuSn-C | Phosphor bronze welding wire |
| S214 [Silk 214] | SCu6100A | ERCuAl-A1 | Aluminum bronze welding wire |
| S215 [Silk 215] | SCu6180 | ERCuAl-A2 | Aluminum iron bronze welding wire |
| S216 [Silk 216] | SCu6327 | - | Aluminum nickel bronze welding wire |
| S221 [Silk 221] | SCu6810A | - | Tin brass welding wire |
| S222 [Silk 222] | SCu6810 | BRCuZn-C | Iron brass welding wire |
| S223 [Silk 223] | SCu4700 | RBCuZn-A | Tin brass welding wire |
| S224 [Silk 224] | - | - | Silicon brass welding wire |
| S225 [Silk 225] | SCu7730 | RBCuZn-D | Zinc white copper welding wire |
| S226 [Silk 226] | SCu6810A | - | Tin brass welding wire |
| S227 [Silk 227] | SCu6800 | RBCuZn-B | Iron nickel brass welding wire |
| S229 [Silk 229] | - | - | Nickel manganese brass welding wire |
| S231 [Silk 231] | SCu7158 | ERCuNi | White copper welding wire |
| S232 [Silk 232] | SCu7061 | - | White copper welding wire |
Supply specifications
| Straight welding wire (mm) | 1.6， 2.0， 2.5， 3.0， 4.0， 5.0， 6.0 | 10kg/pack |
| Disk mounted welding wire (mm) | 0.8， 0.9， 1.0， 1.2， 1.6， 2.0， 2.4 | 12.5kg/plate |
There are three uses of copper and copper alloy welding wire: firstly, for welding copper and copper alloys, used for connecting copper and copper alloys; Secondly, due to its excellent corrosion resistance and wear resistance, it is commonly used for welding metal friction resistant components (such as bearing shells, low-pressure valve sealing surfaces) and seawater corrosion-resistant workpieces (such as propellers); In addition, it is more widely used for brazing steel, hard alloy tools, etc.
Copper and copper alloy welding wires can be welded using methods such as melting electrode argon arc welding (MIG welding), tungsten electrode argon arc welding (TIG welding), gas welding, and plasma arc welding.
Tungsten inert gas welding (TIG welding) usually uses a direct current positive connection method, while melting electrode argon welding (MIG welding) usually uses a direct current reverse connection method.
Recommended welding specifications:
Tungsten inert gas welding (TIG welding)
| Welding wire diameter (mm) | Tungsten electrode diameter (mm) | Current (A)* |
| 1.6 | 1.6 | 70-120 |
| 2.4 | 2.4 | 120-160 |
| 3.0 | 3.0 | 170-230 |
| 4.0 | 4.0 | 220-280 |
| 5.0 | 4.0 | 280-330 |
Melting electrode argon arc welding (MIG welding)
| Welding wire diameter (mm) | Voltage (V) | Current (A)* |
| 1.0 | 20-26 | 70-120 |
| 1.2 | 22-28 | 120-160 |
| 1.6 | 29-32 | 170-230 |
| 2.4 | 32-34 | 220-280 |
*Explanation:When the base material is steel, a low value is used for welding current; when the base material is bronze, an intermediate value is used; and when the base material is copper, a high value is used.
