Oxygen Free Copper Tube TU0 / TU1 / TU2 for Electrical Conductor
TU0, TU1, and TU2 are high-purity copper grades widely used for manufacturing electrical conductor tubes, hollow conductors, induction coil conductors, transformer conductors, and water-cooled electrical components. These copper grades offer excellent electrical conductivity, thermal conductivity, and formability, making them ideal for high-current applications.
Our copper conductor tubes are available in round hollow sections with precise dimensional tolerances and smooth inner surfaces for efficient water cooling and electrical performance.
Typical Dimensions of oxygen free copper tube
Parameter | Range |
Outside Dimension | 10 mm – 100 mm |
Inside Dimension | 5 mm – 50 mm |
Wall Thickness | 2.5 mm – 25 mm |
Length | 1000 mm – 6000 mm or Coil |
Other OD / wall thickness combinations are available upon request
The products are manufactured and supplied in accordance with the following standards:
European Standards
· EN 13600 – Copper Tubes for Electrical Purposes
· EN 13605 – Copper Profiles and Hollow Conductors
ASTM Standards
· ASTM B75 – Seamless Copper Tube
· ASTM B188 – Copper Bus Bar, Rod and Shapes
TU0, TU1, and TU2 Copper Grade Comparison
Grade | Copper Content (%) | Conductivity (% IACS) | Oxygen Content |
TU0 | ≥99.97 | ≥101 | ≤0.002% |
TU1 | ≥99.95 | ≥100 | ≤0.003% |
TU2 | ≥99.90 | ≥99.9 | ≤0.005% |
Oxygen Free Mechanical Properties (Annealed Condition Soft)
Property | TU0 | TU1 | TU2 |
Tensile Strength (MPa) | ≥195 | ≥205 | ≥205 |
Yield Strength (MPa) | ≥70 | ≥75 | ≥75 |
Elongation (%) | ≥35 | ≥35 | ≥35 |
Conductivity (% IACS) | ≥101 | ≥100 | ≥99.9 |
Hard Drawn Condition
Property | Value |
Tensile Strength | 250–320 MPa |
Yield Strength | 180–250 MPa |
Elongation | 5–15% |
Why Choose Our Copper Conductor Tubes
1. OD from 10–100 mm
2. ID from 5–50 mm
3. Oxygen-free copper grades available
4. EN 13605 hollow conductor capability
5. High conductivity up to 101% IACS
6. Custom dimensions and machining
7. Mill Test Certificate (MTC EN 10204 3.1)
8. Eddy current, conductivity, and dimensional inspection
9. Hydrogen embrittlement test
We can manufacture custom hollow conductors according to customer drawings and electrical design requirements.
