Description
NIHONWELD N-CuSnC (DC) is a special tin-bronze electrode developed for joining and surfacing applications requiring high-quality bronze weld deposits using DC positive polarity.
This electrode provides a smooth and stable arc that produces dense, porosity-free welds in all recommended welding positions. The weld metal exhibits excellent appearance and blends beautifully with bronze materials due to its superior color matching properties.
N-CuSnC (DC) is ideal for maintenance, repair, and fabrication work involving bronze and copper-based alloys where appearance, soundness, and weld quality are important.
Key Features
- Tin-bronze alloy welding electrode
- Smooth and stable arc characteristics
- Dense and porosity-free weld deposits
- Excellent bronze color matching
- Suitable for joining and surfacing
- High-quality weld appearance
- Good mechanical properties
- Ideal for repair and maintenance work
Classification
- AWS A5.6 ECuSn-C
- DIN 1733: S-Cu Sn 7
Typical Chemical Composition of Weld Metal Deposits (%)
| Cu | Fe | Sn | P |
|---|---|---|---|
| Balance | 0.17 | 7.80 | 0.11 |
Typical Mechanical Properties of Weld Metal Deposits
| Property | Value |
|---|---|
| Tensile Strength | 390 N/mm² (57 KSI) |
| Elongation | 30% |
| Hardness | 90 – 100 HB |
Size and Recommended Current Range (DC+)
| Diameter | Length | Current Range |
|---|---|---|
| 3.2 mm | 350 mm | 90 – 130A |
| 4.0 mm | 350 mm | 120 – 160A |
| 5.0 mm | 350 mm | 150 – 220A |
Welding Positions
- Flat
- Fillet
- Vertical Up
- Horizontal
- Overhead
Applications
- Bronze joining applications
- Bronze surfacing work
- Copper alloy repairs
- Maintenance welding
- Fabrication and restoration work
- Decorative bronze welding applications
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