What is a C11000 copper ?
C11000 is the standard designation for Electrolytic Tough Pitch (ETP) Copper, which is essentially 99.9% pure copper. It is the most common and widely used form of copper in the world, known for its excellent electrical and thermal conductivity. When people refer to "pure copper" in general electrical and thermal applications, they are most often talking about C11000.
Chemical Composition
| Element | Cu(1,2) | Oxygen |
|---|---|---|
| Min (%) | 99.90 Min. | 0.04 Max. |
Common Fabrication Processes
Forging
Extruding
Drawing
Ring Rolling
Bending
Machining
Mechanical & Electrical Properties
| Form | Tensile Strength In N/MM² | Elongation In % | Hardness in BHN | Conductivity % IACS at 20°C | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Annealed condition | Half hard Condition | Full Hard Condition | Annealed condition | Half hard Condition | Full Hard Condition | Annealed condition | Half hard Condition | Full Hard Condition | ||
| Rod | ≥ 200 | ≥240 | ≥290 | 35 | 15 | 10 | 45-60 | 65-85 | 85-110 | ≥97 |
| Flat | ≥ 200 | ≥240 | ≥290 | 35 | 15 | 10 | 45-60 | 65-85 | 85-110 | ≥97 |
| Profile | ≥ 200 | ≥240 | ≥290 | 35 | 15 | 10 | 45-60 | 65-85 | 85-110 | ≥97 |
| Short Circuit Ring | ≥ 200 | - | - | 35 | - | - | 45-60 | - | - | ≥99.0 |
| Rotor Bar | ≥ 200 | - | - | 35 | - | - | - | - | - | ≥99.0 |
| Tube as extruded Condition | - | - | - | - | - | - | 45-60 | - | - | ≥97 |
| Forged Block | - | - | - | - | - | - | 45-60 | - | - | ≥97 |
Physical Properties
| Melting Point – Liquidus °C | 1083 |
|---|---|
| Melting Point – Solidus °C | 1065 |
| Density lb/cu in. at 20°C | 0.322(1) |
| Specific Gravity | 8.91 |
| Electrical Conductivity% IACS at 20°C | 101(2) |
| Thermal Conductivity Btu/ sq ft/ ft hr/ °C at 20°C | 226 |
| Coefficient of Thermal Expansion 20 – 100 10-6 per °C (20 – 100°C) | 9.4 |
| Coefficient of Thermal Expansion 20 – 200 10-6 per °C (20 – 200°C) | 9.6 |
| Coefficient of Thermal Expansion 20 – 300 10-6 per °C (20 – 300°C) | 9.8 |
| Specific Heat Capacity Btu/ lb /°C at 20°C | 0.092 |
| Modulus of Elasticity in Tension ksi | 17000 |
| Modulus of Rigidity ksi | 6400 |
Applicable Form & Size
|
Form |
Size |
|
Rod |
Dia : Ø10 mm-Ø145mm, Length : 2 Mtr max |
|
Flat / Rotor Bar |
Thick : 5 mm-60 mm Width : 20 mm-150 mm Length -2 Mtr max |
|
Profile |
Circumscribing circle of Dia 30 to 150 mm |
|
Wheel |
Dia : Ø400 mm max, Thick : 5 mm – 50 mm |
|
Tube as Extruded Condition |
ID : - Ø45 mm- Ø117mm OD :– Ø85 mm- Ø150mm |
|
Forged Block |
Thick : 170 mm max Width : 320 mm max Length : 600 mm max |
|
Short Circuit Ring |
OD : Ø270 – Ø830 mm, ID : Ø160 – Ø700 mm, Thick : 17mm to 90mm |
why choose us
why choose our products
We are a leading manufacturer and exporter specializing in a comprehensive range of high-quality copper products, including copper tubes, copper plates/sheets, copper bars, copper rods, copper wires, and copper strips. Our advanced manufacturing facilities are equipped with state-of-the-art continuous casting lines, extrusion presses, cold rolling mills, and drawing machines to ensure precision and consistency. Rigorous quality control is integral to our process, conducted through spectrometers for material verification, tensile testers, eddy current testers, and hydrostatic pressure testers, guaranteeing that all our products meet international standards for performance and durability.
E-mail: sales@gneesteel.com
