0102030405
China Suppliers Factory for Oxygen Free High Conductivity Tellurium Copper | High Performance Copper Alloys
Kepai innovated the production process and developed oxygen free high conductivity tellurium copper with independent intellectual property rights.
High corrosion-resistant
Low oxygen content (lower than 10ppm)
Extremely easy cutting non-stick tool
Good cold-working and hot working ability
High electrical and thermal conductivity
Excellent welding resistance
The oxygen free high conductivity tellurium copper has extremely low oxygen content (the oxygen content level is equivalent to TU0 / C10200, less than 10ppm), great mechanical, physical and fabrication properties:
| Tensile Strength | RmMpa | ≥260 |
| Yield Strength | δ0.5Mpa | ≥205 |
| Elongation | % | ≥12 |
| Coefficient of elasticity | Mpa | 117000 |
| Heat conductivity coefficient | W/(m·K) | 415 |
| Electrical Conductivity | %IACS | ≥97 |
| Hardness | HRB | 30-55 |
| Softening temperature | 350℃ |
| Capacity for being cold worked | excellent |
| Capacity for being hot formed | excellent |
| Hot working temperature | 750-875℃ |
| Annealing temperature | 425-650℃ |
Applications of OFT copper:
- Hardware processing industry: complex, precision electrical components. Precision machining parts
- Cutting and welding industry: Plasma and laser welding nozzle
- Medium and low voltage industry
- Contact and contact of automobile electromagnetic switch
- New energy industry
- Automobile terminal, high current charging gun connector, lithium ion battery pole.
Why choose our oxygen-free high-conductivity tellurium copper?
In fields such as 5G communications and semiconductor packaging, conventional copper materials are prone to hydrogen embrittlement due to high oxygen content, leading to device failure. Our oxygen-free high-conductivity tellurium copper, with an oxygen content of ≤0.003% and micro-alloyed with tellurium, eliminates the risk of hydrogen embrittlement while maintaining industry-leading electrical conductivity.
Frequently Asked Questions (FAQ)
What is Oxygen-Free High-Conductivity Tellurium Copper (OFT Copper)?
OFT Copper is an advanced copper alloy that combines the high machinability of tellurium copper with the excellent electrical conductivity and hydrogen embrittlement resistance of oxygen-free copper. It maintains an oxygen content level of less than 10ppm.
How does low oxygen content (
Traditional tellurium coppers with higher oxygen content are susceptible to hydrogen embrittlement when exposed to reducing gases at high temperatures. Keeping the oxygen level below 10ppm eliminates this risk, ensuring structural stability during welding, brazing, and high-temperature operations.
What is the electrical conductivity rating of this alloy?
Our oxygen-free high-conductivity tellurium copper achieves an electrical conductivity rating of ≥97% IACS, making it highly efficient for electrical power transmission and electronic connector applications.
Why is OFT copper preferred for precision machining?
The micro-alloyed tellurium acts as a chip breaker, dramatically increasing the machinability index of the copper. This results in clean cuts, less tool wear, and prevents the metal from sticking to cutting tools during high-speed CNC machining operations.
Can this material be used in new energy vehicle (NEV) components?
Yes, it is highly suited for high-current applications in NEVs, including high-power charging gun terminals, battery connectors, and lithium-ion battery pole components due to its superior electrical conductivity and thermal performance.