C618 Aluminum Bronze A-2 Electrode
Nominal Chemical
Composition
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INTRODUCTION
Aufhauser Aluminum Bronze A-2 Electrode has weld metal of higher tensile strength, yield strength, and hardness with a correspondingly lower ductility than the Aluminum Bronze A-1. Used in ship-building, sea water applicaitons, desalination plants, checmical industry, pump parts that are attacked by salt water (propellers, bearings, etc.).
APPLICATIONS
- Repairing aluminum bronze and other copper alloy castings
- High strength surfacing of wear- and corrosion-resistant bearing surfaces
GENERAL INFORMATION
Chemical Composition| Copper | Aluminum | Iron | Lead | Silicon | Other |
|---|---|---|---|---|---|
| Remainder | 6.50 - 9.0 | 0.50 - 5.0 | 0.02* | 1.50* | 0.50* |
* Max
Copper contains Silver
Total Other includes: Manganese, Nickel, Tin, Zinc = 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 | 77,000 psi |
| Yield Strength | 35,000 psi |
| Elongation in 2" | 27% |
| Brinell Hardness (3000 kgf) | 110 - 130 |
SPECIFICATIONS MEET OR EXCEED
| AWS A5.6 Class E CuAl-A2 |
| ASME SFA 5.6 Class E CuAl-A2 |
STANDARD SIZES AND DIAMETERS
| Diameter | Length | Amperage |
|---|---|---|
| 3/32" | 12" | 80 - 100 |
| 1/8" | 14" | 90 - 120 |
| 5/32" | 14" | 120 - 140 |
| 3/16" | 14" | 120 - 140 |
TYPICAL USES FOR ALLOY C618
| Product Category | Product | Reason Category | Reason |
|---|---|---|---|
| Industrial | Bearing Liners | Corrosion Resistance | Corrosion Resistance |
| Bearing Liners | Machining Characteristics | Average Speed | |
| Bearing Liners | Mechanical Properties | Medium Load | |
| Bearings | Corrosion Resistance | Corrosion Resistance | |
| Bearings | Corrosion Resistance | Corrosion Resistance in Numerous Environments | |
| Bearings | Corrosion Resistance | Corrosion Resistance to Chemicals | |
| Bearings | Friction & Wear Properties | Wear Resistance | |
| Bearings | Mechanical Properties | High Strength | |
| Bearings | Softening Resistance | Resistance to Softening | |
| Bushings | Corrosion Resistance | Corrosion Resistance (Excellent) | |
| Bushings | Machining Characteristics | Average Speed | |
| Bushings | Mechanical Properties | Medium Load | |
| Pickling Hooks | Corrosion Resistance | Corrosion Resistance | |
| Pickling Hooks | Corrosion Resistance | Corrosion Resistance to Acids | |
| Pickling Hooks | Machining Characteristics | Average Speed | |
| Pickling Hooks | Mechanical Properties | Medium Load | |
| Pump Impellers | Corrosion Resistance | Corrosion Resistance | |
| Pump Impellers | Machining Characteristics | Average Speed | |
| Pump Impellers | Mechanical Properties | Medium Load | |
| Shafts | Corrosion Resistance | Corrosion Resistance | |
| Shafts | Corrosion Resistance | Corrosion Resistance in Numerous Environments | |
| Shafts | Mechanical Properties | High Strength | |
| Shafts | Softening Resistance | Resistance to Softening | |
| Tie Rods | Corrosion Resistance | Corrosion Resistance | |
| Tie Rods | Corrosion Resistance | Corrosion Resistance in Numerous Environments | |
| Tie Rods | Mechanical Properties | High Strength | |
| Tie Rods | Softening Resistance | Resistance to Softening | |
| Welding Rod | Conductivity (Electrical) | Electrical Conductivity | |
| Welding Rod | Conductivity (Thermal) | Thermal Conductivity | |
| Welding Rod | Welding Characteristics | Weld to other Cu Al alloys | |
| Welding Wire | Welding Characteristics | Weld Alloy - c61300 | |
| Marine | Marine Hardware | Corrosion Resistance | Corrosion Resistance |
| Marine Hardware | Corrosion Resistance | Corrosion Resistance (Excellent) | |
| Marine Hardware | Corrosion Resistance | Corrosion Resistance to Salt Water | |
| Marine Hardware | Mechanical Properties | Moderate Strength |