Copper C110

Copper C110, also known as electrolytic tough pitch (ETP) copper, is a commercially pure copper alloy with high thermal and electrical conductivity.

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Copper machined part with flange and slots

C11000
CU ETP

220-280 MPa

Ultimate Tensile Strength
60-240 MPa

Yield Strength
115-120 GPa

Young's Modulus(Elasticity)
9-30 %

Elongation at Break

At a Glance

Material Type
Metal
Material Name
Copper C110
Alternative Names
C11000 | CU ETP | Oxygen-free high thermal conductivity (OFHC) copper
Process Compatibility
CNC Milling, CNC Turning

Properties Table of Copper C110

Properties

Ultimate Tensile Strength 220-280 MPa
Yield Strength 60-240 MPa
Young's Modulus(Elasticity) 115-120 GPa
Elongation at Break 9-30%
Physical Property
Weldability Moderate to Poor
Thermal Property
Thermal Expansion Coefficient 17-17.7 x 10^-6/°C
Thermal Conductivity 380-388 W/(m·°C)
Electrical Property
Electrical Resistivity 1.71-1.76 μΩ*cm

Applications of Copper C110

Electrical connectors
Plumbing fittings
Heat exchanger tubes
Antimicrobial surfaces
Automotive radiators
Electronic components
Musical instruments
Architectural elements

Advantages of Copper C110

Excellent electrical conductivity
High thermal conductivity
Corrosion resistance
Ductility and malleability
Good mechanical strength
Easy to solder and weld
Biostatic (antimicrobial properties)
Recyclable

Raw Stock

CNC Machined

Finished Parts

Copper C110 — Machining Notes

Copper C110 in CNC Machi
is Copper C110?

Copper C110 in CNC Machining

Copper C110, also known as electrolytic tough pitch (ETP) copper, is a commercially pure copper alloy with high thermal and electrical conductivity.

It’s commonly used in components that require efficient electrical transfer, such as electrical connectors and bus bars. It has excellent machinability but tends to work harden, so we do proper cutting techniques, as well as appropriate tool selection, cutting speeds and feeds, and coolants when machining. Copper C110 has good corrosion resistance, although it can tarnish over time. This can be addressed through coatings or finishes if necessary.

With 99.99% copper content and stringent impurity limits, it avoids embrittlement when heated and offers high ductility for easy cold working. Additionally, C110 is easily bendable without breaking; it only requires little force for shaping and stands out for its corrosion resistance. C110 is truly a great option for both indoor and outdoor components. Typically, C110 is available in 1/8 hard (1/8 H) or 1/4 hard (1/4 H) conditions, and it’s resistant to annealing.

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What is Copper C110?

Copper C110, also known as ETP (Electrolytic Tough Pitch), is highly malleable and ductile, with excellent heat and electrical conductivity. Its reddish color is typical for copper alloys.

With a purity of 99.9%, it has 101% IACS conductivity. While not as corrosion-resistant as some copper alloys, C110 copper still exhibits reasonable resistance.

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