C110

Copper 110 – Electrolytic Tough Pitch (ETP) Flat Bar

C11000

Overview

Copper 110 (C11000) is Electrolytic Tough Pitch (ETP) copper — the most widely used commercial copper alloy. With a minimum 99.90% copper content and 100% IACS electrical conductivity, it is second only to silver in conductivity.

Chemical Composition

Element	Min	Max
Copper (Cu)	99.90%	—
Oxygen (O)	—	0.04%

Alloy Designations

UNSC11000

DIN2.0060

BSC101

ENCW004A

ASTMB124, B152, B187, B370

Mechanical Properties

Tensile Strength (Annealed)32 ksi (221 MPa)

Tensile Strength (½ Hard)42 ksi (290 MPa)

Yield Strength (½ Hard)36 ksi (248 MPa)

Elongation (Annealed)45%

Elongation (½ Hard)14%

Rockwell Hardness (½ Hard)40 HRB

Shear Strength26 ksi (179 MPa)

Fatigue Strength14 ksi (97 MPa)

Physical Properties

Density8.89 g/cm³ (0.323 lb/in³)

Melting Point (Liquidus)1,083°C (1,981°F)

Electrical Conductivity100% IACS

Thermal Conductivity391 W/m·K

Coefficient of Thermal Expansion16.9 × 10⁻⁶ /K

Modulus of Elasticity117 GPa (17,000 ksi)

Typical Applications

Electrical busbars and conductors
Telecommunications equipment
Architectural facades and roofing
Antimicrobial touch surfaces
Automotive radiators and wiring
Electronics and PCB connectors
Heat exchangers and heat sinks
Plumbing and HVAC systems

Fabrication & Joining

Excellent capacity for cold working
Excellent hot forming ability
Soldering: Excellent
Brazing: Good
Butt Welding: Good
Gas Shielded Arc Welding: Fair
Not recommended for oxyacetylene, spot, or seam welding
Annealing temperature: 370–650°C (700–1,200°F)

Need C110 Copper Flat Bar?

Contact our sales engineers for a custom quote on C110 (C11000) copper flat bar — tailored dimensions, tempers, and finishing options for your exact specifications.

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