Custom C11000 Pure copper Manufacturer, Supplier

C11000 Pure Copper Introduction

C11000 Pure Copper is a purple red metal, commonly known as "red copper". It is highly malleable; a drop-sized piece can be pulled into filaments up to two kilometers long or rolled into almost transparent foil larger than a bed. The most valuable property of C11000 is its excellent electrical conductivity, making it a leading material in the electrical industry.

Applications for C11000 are much more extensive than iron, with 50% of copper being purified into pure copper annually via electrolysis for electrical use. Trace impurities like phosphorus, arsenic, or aluminum can significantly reduce conductivity. Oxygen content also impacts performance, which is why copper for electrical industries is typically oxygen-free. Impurities like lead, antimony, and bismuth are minimized to prevent "hot brittleness" during processing.

High-purity copper is refined by electrolysis: impure copper (anode) and C11000 (cathode) are placed in a copper sulfate electrolyte. Under current, the anode dissolves and pure copper precipitates on the cathode, reaching a purity of 99.99%.

Mechanical Properties

Property	Unit	Value
Tensile Strength	Rm Mpa	≥ 260
Yield Strength	δ 0.5 Mpa	≥ 205
Elongation	%	≥ 12
Coefficient of Elasticity	Mpa	127,000
Heat Conductivity Coefficient	W/(m·K)	375

Physical Properties

Property	Unit	Value
Electrical Conductivity	%IACS	≥ 95
Hardness	HRB	35-55

Fabrication Properties

Fabrication Process	Property / Temperature
Softening temperature	350 °C
Capacity for being cold worked	Excellent
Capacity for being hot formed	Excellent
Hot working temperature	750-875 °C
Annealing temperature	425-650 °C
Machinability rating (Free Cutting Brass=100)	30

Frequently Asked Questions

What is C11000 Pure Copper?

C11000, also known as Electrolytic Tough Pitch (ETP) copper or "red copper," is a high-purity copper known for its excellent electrical and thermal conductivity.

How is C11000 refined to 99.99% purity?

It is refined through an electrolysis process using impure copper as the anode and pure copper as the cathode in a copper sulfate electrolyte solution.

What are the primary applications of C11000?

Due to its superior conductivity, about 50% of C11000 is used in the electrical industry for wiring, filaments, and electrical components.

Can C11000 be easily shaped or worked?

Yes, it has excellent capacity for both cold working and hot forming, and it is highly malleable, allowing it to be drawn into thin wires or rolled into foil.

What temperature is required for annealing C11000?

The recommended annealing temperature for C11000 Pure Copper ranges between 425°C and 650°C.

How do impurities affect C11000?

Even small amounts of impurities like phosphorus or aluminum can significantly reduce its electrical conductivity, while lead or bismuth can cause hot brittleness.