Alloy 101 OFE Copper is the highest purity grade of copper. OFE stands for
oxygen-free electrolytic and replaces the acronym OFHC.
The main properties and benefits of OFE copper are: |
-
Immune to hydrogen embrittlement
-
Very adherent oxide scale
-
Highest homogeneity and reliability of all copper grades
-
Highest possible electrical conductivity of as high as 101.5% IACS
-
Highest possible thermal conductivity
-
Superior weldability, brazability and solderability
-
Extremely good for electron beam welding
-
Most preferred formability and impact strength
-
Highest purity standardized copper
-
(impurities <40 ppm and no single impurity higher than 25 ppm)
|
For the certified grade, only specially selected cathode copper is
used, and ingots produced in the middle of the operation period – a
period in which operation conditions are most stabilized – are
designated.
|
USAGE OF HIGH PERFORMANCE OFE COPPER (for more information click here)
OFE for Electron
| Characteristic |
Product |
Application |
| Used for selecting copper
|
Sheet, Plate, Strip |
Electron Devices |
| Used to control the melt |
Rod, Bar, Wire |
Gaskets |
| Atmosphere during casting |
Tube |
Vacuum Environments |
| Used in establishing |
|
High temperature electrode welding |
| Testing procedures |
|
|
|
OFE for Magnetron
| Characteristic |
Product |
Application |
| Extreme low level
|
Tube |
Magnetron |
| Oxygen content |
Rod, Bar, Wire |
High vacuum environments |
| Low discharge of gas |
|
High voltage electrodes |
| during heating |
|
|
|
OFE for Superconductivity
| Characteristic |
Product |
Application |
| Residual Resistively Ratio |
Rod, Bar, Wire |
Stabilizer for superconductor |
| RRR>300 (>500)
|
|
(MRI) |
| Extreme low level impurity content |
|
|
|
OFE ASTM F68 Class 1
| Characteristic |
Product |
Application |
| Extreme low level |
Strip, Sheet, Plate |
Particle accelerators |
| oxygen content |
Rod, Bar, Wire |
High vacuum environments |
| Low discharge of gas during heating |
Tube |
High voltage electrodes |
| Finest Metalographic Structure |
|
|
|
REFERENCED ASTM CODE
Copper Alloy UNS C10100 conforms to the following specifications:
ASTM B75-99 Seamless Copper Tube
ASTM B152-00 Copper Sheet, Strip, Plate, Rolled Bar
ASTM B187-00 copper Bar, Bus Bar, Rod and Shapes
All the above ASTM specs can also conform to:
- 1. Class 1, Class 2 (ASTM F68-99)
Products are classified according to microstructure specified in ASTM F68 and
those qualities are guaranteed by Special Microscopical Examination. Refinery
shapes: ASTM B170-99 Grade 1 Copper
- 2. No Class Designation
|
CHEMICAL COMPOSITION OF OFE COPPER
Referenced Documents: ASTM F68-99, ASTM B170-99
| |
ASTM B170 |
Our OFE’s Typical |
| |
Grade 1
|
Composition
|
| Copper |
>99.99% |
99.998% |
| Antimony |
</=4 ppm |
0.1 ppm |
| Arsenic |
</=5 ppm |
0.1 ppm |
| Bisumasu |
</=1 ppm |
0.1 ppm |
| Cadmium |
</=1 ppm |
<0.1 ppm |
| Iron |
</=10 ppm |
1 ppm |
| Lead |
</=5 ppm |
1 ppm |
| Manganese |
</=0.5 ppm |
<0.1 ppm |
| Nickel |
</=10 ppm |
0.5 ppm |
| Oxygen |
</=5 ppm |
1.5 ppm |
| Phosphorus |
</=3 ppm |
<0.1 ppm |
| Selenium |
</=3 ppm |
0.1 ppm |
| Silver |
</=25 ppm |
8 ppm |
| Sulfur |
</=15 ppm |
3 ppm |
| Tellurium |
</=2 ppm |
0.1 ppm |
| Tin |
</=2 ppm |
0.1 ppm |
| Zinc |
</=1 ppm |
0.1 ppm |
To see a list of our 101 products: |
|
| |
101 OFE Copper Rod and Tube
101 OFE Copper Sheet and Plate |
|
