C11000
>99.9% Cu
PURITY
100–101% IACS
CONDUCTIVITY
H00-H04
TEMPER
C11000 Copper, also known as Electrolytic Tough Pitch (ETP) copper, is the most widely used commercial copper grade with excellent electrical and thermal conductivity. It is suitable for a broad range of applications including electrical components, heat exchangers, and architectural systems.
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Lead Time: 3-5 Business Days

Product Overview

C11000 copper, commonly known as Electrolytic Tough Pitch (ETP) copper, is a high-purity copper grade containing a minimum of 99.9% copper and manufactured to ASTM B152 standards. It is widely recognized as the industry standard material for electrical and general engineering applications.

Produced through controlled electrolytic refining and hot rolling processes, C11000 offers excellent electrical conductivity up to 101% IACS and strong thermal performance. Its balanced mechanical properties and good formability make it suitable for both fabrication and precision machining.

C11000 copper is extensively used in electrical systems, heat exchangers, and architectural components where high conductivity and reliability are required. It is an ideal material for industries such as power generation, HVAC, electronics, and construction.

Key Features

High purity copper (≥99.9% Cu)
Excellent electrical conductivity (100–101% IACS)
Superior thermal conductivity
Good ductility and formability
Suitable for welding, brazing, and soldering
Available in multiple tempers (H00–H04)

Available Sizes

Copper Shape Thickness (mm) Width/Diameter (mm) Length (m)
Bar - Φ5-200 1-6
Wire - Φ0.05-10 Customize
Sheet 0.25-6 500-2500 1-6
Plate 6-200 200-3000 1-6
Strip 0.15-6 8-610 Customize
Tube OD: φ2-600; WT:φ0.2-100mm - 1-6
Coil 0.15-6 3-1250 1-6
Foil < 0.15 10-1350 Customize
Profile Customized Customize Customize

* Custom sizes available upon request. Contact our sales team for special requirements.

Technical Specifications

Precision data for engineering decisions. All values tested per ASTM standards.

01 Chemical Composition

Element Value (%)
Cu ≥ 99.90
O ≤ 0.040
Ag ≤ 0.015
P ≤ 0.005
Fe ≤ 0.005

02 Mechanical Properties

Property Condition Value
Tensile Strength H00 220–275 MPa
Tensile Strength H02 275–345 MPa
Yield Strength H02 200–250 MPa
Elongation H00 ≥ 35%
Hardness (HRB) H00 40–60

03 Physical Properties

Property Value
Density 8.94 g/cm³
Electrical Conductivity 100–101% IACS
Thermal Conductivity 391 W/m·K
Melting Point 1083°C
Thermal Expansion 16.5 ×10⁻⁶ /K

Applications & Use Cases

Proven solutions across diverse industries. From aerospace to marine environments.

C11000 Electrolytic Tough Pitch (ETP) Copper — FAQ

Practical FAQ on C11000 ETP copper, ASTM specs, properties and the hydrogen-embrittlement caution.

C11000 is the most common wrought copper, with Cu+Ag ≥99.90% and a controlled oxygen content of 0.02–0.04%. It combines very high conductivity with good ductility at the lowest cost.
ASTM B152 (sheet/strip/plate), B187 (rod/bar) and B188 (busbar) cover C11000; it is widely supplied as sheet, strip, rod, bar, busbar and tube.
Conductivity is about 100% IACS, with annealed UTS ~195–260 MPa and elongation ~35–45%. It is not heat-treatable; strength comes from cold work (H00–H04 tempers).
Because C11000 contains oxygen, heating it in a reducing (hydrogen) atmosphere can cause embrittlement and cracking. For hydrogen-service or welded assemblies, choose oxygen-free C10100/C10200 instead. Brazing and soldering are fine.
Linsy supplies C11000 sheet, strip, rod, bar, busbar and tube to ASTM with an MTR/MTC, SGS on request, and RoHS/REACH support. Typical lead time is 10–60 days with low MOQ and a 1-hour quoting response.
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