C633 Manganese Nickel Aluminum Bronze Electrode
Nominal Chemical
Composition
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INTRODUCTION
Aufhauser EC633 - Manganese Nickel Aluminum Bronze Electrode - is a basic coated manganese bronze electrode (Cu Mn Al Fe) for welding and surfacing of aluminum bronzes and for dissimilar joints between steels and copper alloys. It is also recommended for overlays on cast iron, steels and copper alloys. Excellent welding characteristics, stable arc, low spatters, very easy slag removal. Low anti-friction properties of the deposit make EC633 an excellent choice for overlaying on sliding guides.
APPLICATIONS
- Joining or repairing cast or wrought manganese-nickel-aluminum bronze materials
- Naval constructions, sea water applications and chemical industry (pumps, propellers, etc.)
GENERAL INFORMATION
Chemical Composition| Copper | Manganese | Iron | Silicon | Nickel | Aluminum | Other |
|---|---|---|---|---|---|---|
| Remainder | 11.0 - 14.0 | 2.0 - 4.0 | 1.50* | 1.5 - 3.0 | 7.0 - 8.50 | 0.50* |
* Max. Total Other includes Zinc, Tin = 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
| Tensile Strength | 95,000 psi |
| Tensile Strength | 75,000 psi, min. |
| Yield Strength | 56,000 psi |
| Elongation in 2" | 27% |
| Brinell Hardness (3000 kgf) | 160-200 |
SPECIFICATIONS MEET OR EXCEED
| AWS A5.6 Class ECuMnNiAl |
| ASME SFA5.6 Class ECuMnNiAl |
| MIL-E-23765/3 |
STANDARD SIZES AND DIAMETERS
| Diameters | Lengths | Amperage |
|---|---|---|
| 3/32" | 12" | 60-80 |
| 1/8" | 14" | 80-100 |
| 5/32" | 14" | 90-120 |
| 3/16" | 14" | 90-130 |
COMMON BASE METALS
| UNS | DIN |
|---|---|
| C 62300 | CuAl10Fe3Mn2 |
| C 63000 | CuAl10Ni5Fe4 |
| G-CuAl10Fe | |
| CuAl9Mn2 | |
| G-CuAl8Mn |
TYPICAL USES FOR ALLOY C633
| Product Category | Product | Reason Category | Reason |
|---|---|---|---|
| Industrial | Welding Rod | Conductivity (Electrical) | Electrical Conductivity |
| Welding Rod | Conductivity (Thermal) | Thermal Conductivity | |
| Welding Rod | Corrosion Resistance | Oxidation Resistance | |
| Welding Rod | Softening Resistance | Resistance to Thermal Softening |