Is C101 easy to machine?

Yes, but its softness requires sharp tooling and proper machining parameters to avoid deformation.

What is the main advantage of C101 over C110?

C101 has higher purity and better electrical c onductivity, making it ideal for high-end electronics.

Why is C101 called oxygen-free copper?

Because it has less than 0.0005% oxygen, which prevents hydrogen embrittlement.

Copper C101

Material Type：Metal
Material Name：Copper C101
Alternative Names：UNS C10100 | OFE Copper | CW009A | Oxygen-Free Electronic Copper
Process Compatibility：CNC Milling, CNC Turning, Forging, Drawing

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Description

Copper C101 is an oxygen-free, high-purity copper with excellent electrical and thermal conductivity. With a minimum copper content of 99.99%, it is one of the purest coppers available. Its high conductivity and ductility make it ideal for critical electronic and electrical applications.

Lead Time:	< 10 days
Wall Thickness:	0.75 mm
Tolerances:	±0.005″ (±0.125mm)
Max Part Size:	200 cm x 80 cm x 100 cm

Classification of Metal Performance Parameters

Mechanical Properties	Ultimate Tensile Strength	220–370 MPa
	Yield Strength	60–300 MPa
	Young’s Modulus / Elasticity	110–128 GPa
	Elongation at Break	20–45%
	Hardness	40–100 HV
	Fatigue Strength	90–130 MPa
Physical Properties	Density	8.9 g/cm³
	Corrosion Resistance	Excellent
	Magnetism	Non-magnetic
	Weldability	Excellent
	Impact Toughness	Very Good
Thermal Properties	Maximum Service Temperature	200 °C
	Thermal Expansion Coefficient	16.5 ×10⁻⁶/°C
	Thermal Conductivity	390–400 W/(m·K)
	Creep Resistance	Moderate
Electrical Properties	Electrical Resistivity	0.017 µΩ·m
	Electrical Conductivity	101% IACS
	Dielectric Strength	N/A
Processing & Surface Treatment	Machinability	Fair
	Surface Finish Compatibility	Good
	Formability	Excellent
Special Properties	Biocompatibility	Excellent
	Flame Retardancy	Non-flammable
	UV Resistance	Stable
	Recyclability	100% recyclable

Introduction to Copper C101

What

Copper C101 (UNS C10100) is known as Oxygen-Free Electronic (OFE) Copper. It contains at least 99.99% pure copper with very low oxygen content (<0.0005%). The absence of oxygen improves its conductivity and resistance to hydrogen embrittlement. Because of its purity, it is widely used in vacuum electronic devices, semiconductors, and precision electrical components.

Advantages

Exceptional electrical and thermal conductivity

Extremely high purity (≥99.99% Cu)

Excellent ductility and formability

Free from hydrogen embrittlement

Applications

Semiconductor and electronic components

Vacuum tubes and high-vacuum equipment

Electrical conductors and bus bars

Precision connectors and wiring

FAQ

Q Is C101 easy to machine?

A
Yes, but its softness requires sharp tooling and proper machining parameters to avoid deformation.
Q What is the main advantage of C101 over C110?

A
C101 has higher purity and better electrical c onductivity, making it ideal for high-end electronics.
Q Why is C101 called oxygen-free copper?

A
Because it has less than 0.0005% oxygen, which prevents hydrogen embrittlement.

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Copper C101

Introduction to Copper C101

FAQ

Q Is C101 easy to machine?

Q What is the main advantage of C101 over C110?

Q Why is C101 called oxygen-free copper?

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