Other Copper
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Other Copper
Copper alloys are widely used in numerous applications due to their diverse properties. Here is an overview of several specific types of copper alloys, including Beryllium Copper, Chromium Copper, Cadmium Copper, Sulphur Copper, Arsenic Copper, Tellurium Copper, Zirconium Copper, and Commercial Copper.
BERYLLIUM COPPER (BeCu)
Composition:
- Copper (Cu): 97.5-98%
- Beryllium (Be): 1.5-2%
- Cobalt (Co) or Nickel (Ni): 0.2-0.6%
Properties:
- High Strength: High tensile strength (up to 1400 MPa) after heat treatment.
- Conductivity: Good electrical and thermal conductivity.
- Corrosion Resistance: Excellent resistance to stress corrosion cracking.
- Non-Magnetic: Suitable for non-magnetic environments.
- Applications: Springs, connectors, load cells, and non-sparking tools.
Standards:
- ASTM B194
- AMS 4533
CHROMIUM COPPER (CrCu)
Composition:
- Copper (Cu): 98.7-99.7%
- Chromium (Cr): 0.5-1.2%
Properties:
- High Strength: Good hardness and strength after heat treatment.
- Conductivity: Excellent electrical conductivity (85-95% IACS).
- Corrosion Resistance: Good resistance to wear and corrosion.
- Applications: Electrical connectors, welding electrodes, and mold tooling.
Standards:
- ASTM B224
- ASTM B465
CADMIUM COPPER (CdCu)
Composition:
- Copper (Cu): 98.5-99.5%
- Cadmium (Cd): 0.5-1.5%
Properties:
- Strength: Increased strength compared to pure copper.
- Conductivity: High electrical conductivity (up to 93% IACS).
- Wear Resistance: Enhanced wear resistance.
- Applications: Electrical conductors, trolley wires, and contact wires.
Standards:
- ASTM B441
- ASTM B465
SULPHUR COPPER (Cu-S)
Composition:
- Copper (Cu): 99.3-99.8%
- Sulfur (S): 0.2-0.7%
Properties:
- Machinability: Improved machinability due to sulfur content.
- Conductivity: Good electrical conductivity.
- Applications: Machined electrical components, fasteners, and fittings.
Standards:
- ASTM B301
- ASTM B16
ARSENIC COPPER (Cu-As)
Composition:
- Copper (Cu): 99.2-99.7%
- Arsenic (As): 0.2-0.5%
Properties:
- Corrosion Resistance: Enhanced resistance to dezincification and corrosion.
- Strength: Improved mechanical properties.
- Applications: Condenser tubes, boiler plates, and plumbing fixtures.
Standards:
- EN 12451
TELLURIUM COPPER (TeCu)
Composition:
- Copper (Cu): 99.5-99.7%
- Tellurium (Te): 0.4-0.7%
Properties:
- Machinability: Excellent machinability.
- Conductivity: Good electrical conductivity (90-95% IACS).
- Applications: Machined parts, electrical connectors, and welding electrodes.
Standards:
- ASTM B301
- ASTM B124
ZIRCONIUM COPPER (ZrCu)
Composition:
- Copper (Cu): 99.8-99.9%
- Zirconium (Zr): 0.1-0.2%
Properties:
- High Conductivity: Excellent electrical and thermal conductivity.
- Strength: Good strength and hardness.
- Applications: Resistance welding electrodes, electrical contacts, and switchgear components.
Standards:
- ASTM B743
COMMERCIAL COPPER
Composition:
- Copper (Cu): Typically 99.9% minimum purity.
Properties:
- Conductivity: Very high electrical and thermal conductivity.
- Ductility: Excellent ductility, making it easy to work with.
- Corrosion Resistance: Good resistance to corrosion.
- Applications: Plumbing, electrical wiring, roofing, and industrial equipment.
Standards:
- ASTM B152
- ASTM B187