SCu6180 (also known as CuZn39Pb2, UNS C61800, or CW617N) is a high-lead brass welding rod/wire designed for welding brass alloys, copper alloys, and copper-to-steel dissimilar joints.
This alloy provides high electrical and thermal conductivity, good corrosion resistance, and stable weld performance.
It is widely used in electrical components, plumbing fittings, valves, marine piping, and industrial copper alloy assemblies.
| Element | Content (%) |
|---|---|
| Copper (Cu) | Balance (~60–61) |
| Zinc (Zn) | 37–40 |
| Lead (Pb) | 1.5–2.5 |
| Tin (Sn) | ≤ 0.3 |
| Iron (Fe) | ≤ 0.3 |
| Others | ≤ 0.5 |
Note: Exact composition may vary slightly depending on manufacturer and application requirements.
| Parameter | Specification |
|---|---|
| Material Type | High-Lead Brass Alloy (SCu6180 / CuZn39Pb2 / UNS C61800 / CW617N) |
| Product Form | Welding Rod / Welding Wire |
| Diameter | 0.8 – 5.0 mm (customizable) |
| Length | 250 – 1000 mm (customizable) |
| Melting Point | Approx. 900–1020 °C |
| Conductivity | High |
| Corrosion Resistance | Good |
| Packaging | Coils or straight rods |
| Attribute | Options / Description |
|---|---|
| Alloy Grade | SCu6180 / CuZn39Pb2 / UNS C61800 / CW617N |
| Material Type | High-Lead Brass Alloy |
| Product Form | Welding Rod / Welding Wire |
| Diameter | 0.8 – 5.0 mm (customizable) |
| Diameter Tolerance | ±0.01 mm |
| Length | 250 – 1000 mm (customizable) |
| Surface Finish | Bright, Polished |
| Packaging Type | Coil, Bundle, Straight Rods |
| Melting Point | Approx. 900–1020 °C |
| Electrical Conductivity | High |
| Corrosion Resistance | Good |
| Strength / Mechanical Property | Moderate to High |
| Welding Method | TIG (GTAW), MIG (GMAW), Brazing |
| Heat Treatment | As-drawn, Annealed |
| Certification | ISO 9001, RoHS, REACH (optional) |
| Special Coating | Optional anti-oxidation coating |
| Dissimilar Metal Compatibility | Copper-to-steel, Copper-to-brass joints |
| Application Environment | Marine, Industrial, Plumbing, Electrical |
| Customizable Length & Diameter | Any within standard ranges, special sizes on request |
Electrical and electronic components
Plumbing and fluid fittings
Valves and pumps
Marine piping and seawater equipment
Industrial copper alloy assemblies
High electrical and thermal conductivity
Good corrosion resistance
Smooth and stable weld quality
Low porosity and crack resistance
High ductility and mechanical strength
Compatible with copper-to-steel and copper-to-brass welding
Manual and automated welding compatible
Easy handling and processing
Customizable for special industrial applications
Long service life in marine and industrial environments
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