What is Copper Alloy 61?
Copper Alloy 61 is a high-performance wrought copper alloy for demanding industrial applications requiring excellent mechanical properties and corrosion resistance.
Chemical Composition (ASTM/GB)
| Element | Content (%) | Standard |
|---|---|---|
| Primary Element | Balance | ASTM/GB |
| Alloying Elements | Per specification | ASTM/GB |
| Impurities (max) | ≤0.1% | ASTM |
Mechanical Properties
| Property | Value | Standard |
|---|---|---|
| Tensile Strength | ≥500 MPa | ASTM |
| Yield Strength (0.2%) | ≥300 MPa | ASTM |
| Elongation | ≥15% | ASTM |
| Hardness | 150-200 HB | ASTM E10 |
Key Features
- High strength and durability
- Excellent corrosion resistance
- Superior machinability
- Heat treatable for enhanced properties
- Good weldability
- Consistent quality per international standards
Common Applications
- Aerospace: Aircraft components, structural parts, fasteners
- Automotive: Engine parts, transmission components
- Industrial: Machinery parts, pump components, valves
- Marine: Marine hardware, underwater components
- Medical: Medical devices, surgical instruments
- Energy: Power generation, oil & gas equipment
CNC Machining Guidelines
Recommended Cutting Parameters
| Operation | Speed (m/min) | Feed (mm/rev) | Depth (mm) |
|---|---|---|---|
| Rough Turning | 80-150 | 0.2-0.4 | 2-5 |
| Finish Turning | 150-250 | 0.05-0.15 | 0.2-0.5 |
| Milling | 100-200 | 0.1-0.3 | 1-4 |
| Drilling | 60-120 | 0.1-0.25 | – |
Tool Selection
- Tool material: Carbide (YG/YW class) or coated carbide
- Rake angle: 5-15° positive
- Relief angle: 8-12°
- Nose radius: 0.4-0.8mm (finishing), 0.8-1.2mm (roughing)
Coolant
Use water-soluble emulsion with EP additives, pressure ≥5 MPa
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