C12000 Copper

Grade Name

• UNS Number: C12000

• Common Name: Phosphorus-Deoxidized Copper (DLP – Low Residual Phosphorus)

Product Features

• High electrical conductivity.

• Excellent thermal conductivity.

• Superior corrosion resistance.

• Good formability and weldability.

• Low residual phosphorus content for reduced embrittlement.

Common Product Forms & Dimensions

Form	Thickness (mm)	Width (mm)	Length (mm)	Diameter (mm)
Sheet/Strip	0.5 – 10	100 – 600	Custom	–
Rod/Bar	–	–	Custom	5 – 50
Wire	–	–	Custom	0.5 – 10
Tube	1 – 20 (wall)	–	Custom	10 – 200 (OD)

Chemical Composition

Element	Cu	P	Pb	Fe	Zn	Others
Weight %	≥ 99.9	0.004–0.012	≤ 0.005	≤ 0.005	≤ 0.005	≤ 0.1

Physical Properties

Property	Value
Density (g/cm³)	8.94
Melting Point (°C)	1083
Electrical Conductivity (%IACS)	98 – 100
Thermal Conductivity (W/m·K)	391 (at 20°C)

Mechanical Properties

Condition	Tensile Strength (MPa)	Yield Strength (MPa)	Elongation (%)	Hardness (HV)
Annealed	200 – 250	50 – 80	45 – 55	40 – 60
Hard	300 – 350	250 – 300	10 – 20	80 – 100

Core Advantages

• Ideal for high-conductivity applications.

• Minimal impurities ensure stable performance.

• Versatile for both industrial and electronic uses.

• Compatible with various fabrication methods.

Product Applications

• Electrical connectors and terminals.

• Heat exchangers and cooling systems.

• Busbars and power transmission components.

• Plumbing fittings and HVAC systems.

• Semiconductor lead frames.

Processing Considerations

• Forming: Requires annealing for cold-worked products.

• Welding: Use TIG or resistance welding; avoid overheating.

• Machining: Low tool wear due to softness; use sharp tools.

• Cleaning: Remove oxides with non-abrasive agents.

Key Application Scenarios

• Power distribution systems.

• Renewable energy infrastructure (solar/wind).

• Automotive electrical systems.

• Telecommunications hardware.

FAQs

Q1: Can C12000 be used in marine environments?

A: Yes, due to its corrosion resistance, but regular maintenance is advised.

Q2: How does phosphorus content affect performance?

A: Low phosphorus minimizes brittleness while maintaining conductivity.

Q3: Is C12000 suitable for brazing?

A: Yes, but ensure proper flux and temperature control.

Standard References

Standard	Description
ASTM B152	Standard specification for copper sheet/strip.
EN 13601	Copper rod for electrical purposes.
ISO 1337	Wrought copper alloys for electrical applications.

Note: Specifications may vary slightly based on manufacturer and processing methods. Always consult technical datasheets for critical applications.