C656 Silicon Bronze Electrode
Nominal Chemical
Composition
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INTRODUCTION
Aufhauser Silicon Bronze Electrode contains approximately 3% silicon plus small percentages of manganese and tin. It is an excellent choice for applications involving welding cast iron to steel, or where the part is exposed to corrosives. Silicon Bronze weld deposits are strong, ductile, and crack resistant - even when welding on dirty, oily, burned cast or malleable parts. The high silicon content allows the Silicon Bronze Electrode to be used as a welding or brazing electrode.
ADVANTAGES
- Welding copper-silicon alloys, cast iron, malleable iron, galvanized iron, copper-base alloys and dissimilar metals
- Surfacing area subjected to corrosion
GENERAL INFORMATION
Chemical Composition| Copper | Tin | Manganese | Iron | Silicon | Aluminum | Lead | Other* |
|---|---|---|---|---|---|---|---|
| Remainder | 1.5 | 1.5 | 0.50 | 2.4 - 4.0 | 0.01 | 0.02 | 0.50 |
Note: Copper contains Silver. All values are maximum percentage, unless shown in range. * Total Other includes Zinc, Nickel, Phosphorus = 0.50%
ADDITIONAL INFORMATION
Copper and its alloys require a relatively high heat input with shortened welding time. Higher preheat temperatures and faster welding rates than for steel are necessary.
PHYSICAL and MECHANICAL PROPERTIES
| Machinability | Excellent |
| Color | Yellow brass |
| Current Used | AC/DC reverse polarity |
| Position(s) | All |
| Tensile Strength | 65,000 psi, max. |
| Yield Strength | 42,000 psi, max. |
| Elongation in 4" | 20% |
| Brinell Hardness | 80-100 |
SPECIFICATIONS MEET OR EXCEED
| AWS A5.6 ECuSi-A |
| ASME SFA5.7 |
STANDARD SIZES AND DIAMETERS
| Diameter | Length | Amperage |
|---|---|---|
| 3/32" | 12" | - |
| 1/8" | 14" | 75-120 |
| 5/32" | 14" | - |
| 3/16" | 14" | - |
TYPICAL USES FOR ALLOY C656
| Product Category | Product | Reason Category | Reason |
|---|---|---|---|
| Industrial | Welding Rod, Filler Metal | Brazing Characteristics | Fluidity |
| Welding Rod, Filler Metal | Conductivity (Electrical) | Electrical Conductivity | |
| Welding Rod, Filler Metal | Conductivity (Thermal) | Thermal Conductivity | |
| Welding Rod, Filler Metal | Mechanical Properties | Moderate to High Strength |