Oxygen free copper strips are copper flat products refined to remove nearly all oxygen content, typically less than 0.001%, which prevents the hydrogen embrittlement and porosity common in standard grades. RK Copper and Alloy LLP supplies these strips as an oxygen free copper manufacturer in India, stocking C10100 and C10200 grades in soft, half-hard, and hard tempers. The oxygen free copper strip range covers both OFE (99.99% purity) and OFHC variants, depending on the conductivity requirement of the application.
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Table Of Content
- What is Oxygen Free Copper Strips
- Specification For Oxygen-Free Copper Strips
- Oxygen Free High Conductivity Copper Strips Chemical Composition
- Industrial Sectors and Application of OF Copper Strips
- Request a Free Quote of OFHC Copper Strips
- Oxygen Free Copper Strips Stocks
- Types of Oxygen Free Copper Strips
- FAQs
- Export Destinations For Oxygen-Free Copper Strip
- Supply Destinations For Oxygen-Free Copper Strips
Conductivity runs close to 101% IACS in the OFE grade. That's the main reason this material gets specified over ETP copper in the first place. Chemical composition holds copper at 99.95% minimum with oxygen restricted to 0.0005% max, and mechanical properties vary by temper; soft strips run around 25,000 PSI tensile strength, while hard temper pushes past 50,000 PSI. Strips are produced to ASTM B152 and cross-referenced against ASME SB152 where project specifications call for it. Elongation in soft temper reaches 35-45%, which matters when the strip needs forming or bending during fabrication.
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Low oxygen content means fewer voids during welding and brazing. Strips resist embrittlement in reducing atmospheres, an issue that shows up regularly with ETP copper during high-temperature processing. Applications include busbars, transformer windings, switchgear components, and grounding systems where current-carrying capacity and thermal dissipation both matter. Electrical contacts and terminal connectors are another common use, particularly where repeated thermal cycling would otherwise fatigue a lower-purity strip.
Thickness ranges from 0.5 mm to 10 mm, and width runs from 3 mm to 160 mm depending on the coil or sheet form ordered. Bright annealed and mill finishes are among the finishes that are available in coil, sheet, or cut-length strip supply conditions. We produce copper strips in India and stock a large number of standard sizes so that repeat orders can be supplied quickly. Special gauges and widths are manufactured as per the specifications on request.
Oxygen Free Copper Strips Specifications :
| Dimension Details :- |
Thickness 1 mm (min) 2 mm (min) 3 mm (min) 5 mm (min) 6 mm -50 mm Width 10 mm - 50 mm 10 mm - 100 mm 10 mm - 150 mm 10 mm - 200 mm 10 mm - 250 mm |
| Standard (OFC) :- | JIS H3250-2006, ASTM B152M, GB/T2040-2008,etc |
| Conductivity :- |
Above 97% IACS min in Half Hard Above 99.95% in annealed |
| Purity :- | Copper - 99.99% |
| Specifications (OFC) :- |
Copper: 99.99%, O 2: < 10 ppm Copper: 99.95%, O 2: < 100 ppm |
| Supply Condition :- | Straight length & coils |
Oxygen Free Copper Strips Chemical Composition :
| Element | ||||||||||
| Cu(1,2,3) | Pb | Zn | Fe | P | Ag | As | O | Sb | Te | |
|
(1) This is a high conductivity copper which has, in tde
annealed condition a minimum conductivity of 100% IACS
except for Alloy C10100 which has a minimum conductivity
of 101% IACS. (2) Cu is determined by tde difference between tde impurity total and 100 %. For alloy C10100 tde Cu value is exclusive of Ag. (3) The following additional impurity maximum limits shall apply: Bi 1ppm (0.0001%); Cd 1ppm (0.0001%); Mn 0.5ppm (0.00005%); Ni 10ppm (0.0010%); Se 3ppm (0.0003%); S 15ppm (0.0015%); Sn 2ppm (0.0002). |
||||||||||
| Min (%) | 99.99 | |||||||||
| Max (%) | 0.0005 | 0.0001 | 0.0010 | 0.0003 | 0.0025 | 0.0005 | 0.0005 | 0.0004 | 0.0002 | |
Many Industrial Sectors and Application of OF Copper Strips :
Automotive Radiator, Metal Forming, Gaskets, Plumbing Products, Eyelets, Hardware, Lamp caps, Electrical Fittings, Terminals, Electronic Components, Metal Zip, Flashlights, Handicraft, Decorative Items, Domestic Appliances, Connectors, Shaving Products, Springs, Telecommunications, Locks, Photo Frame etc.
Specialist & India’s Largest Suppliers of
Oxygen Free Copper Strips Grades Like C10100, C10200, C10300, C10400, C10500, C10700, C11000, C11300, C12000, C12200, C14300, C14420, C14530, C19210, C19400 etc.
Oxygen Free Copper Strips Stocks :
OFC Strip
C10100 OFE Copper Strip
C10200 Oxygen Free Copper Strips
Types of Oxygen Free Copper Strips
- OFHC C10200 Copper Strip
- ASTM F68 Oxygen-Free Copper Strips
- ASTM B152 Oxygen Free Copper Strip
- C10200 OF Copper Strips
- B170 Oxygen Free Electronic Copper Strip
- OFS Copper Strip
- Copper Alloy CDA 10100 Strip
- Cu-OF Strips
- Copper Strips CDA 10200
- ASME SB152 Oxygen-Free Strip
- OFC Grade Copper Strip
- Cu-OF CW008A Strip
- C10100/C10200 Copper Strips
- Oxygen Free Copper OFC Strip
- Oxygen-Free Copper Strip
- OFS C10400/C10500/C10700 Copper Strips
- Oxygen-Free Silver-Bearing Copper Strip
- OFE C10100 Copper Strips
Singapore, Nigeria, Mongolia, Canada, Philippines, Mexico, Indonesia, China, Kenya, Qatar, Croatia, Oman, Trinidad & Tobago,Tunisia, Australia, Costa Rica, Poland, Bangladesh, Portugal, Kuwait, Ecuador, Mexico, New Zealand, Denmark, Azerbaijan, Libya, Greece, Bhutan, Malaysia, Germany, Pakistan, Norway, Belarus, Bahrain, Poland, Zimbabwe, Brazil, Hong Kong, Thailand, Czech Republic, France, Austria, United States, Netherlands, Puerto Rico, Bolivia, Kazakhstan, Ireland, United Kingdom, Belgium, Nigeria, Egypt, Ghana, Iran, Estonia, Lebanon, Italy, Gabon, Spain, Turkey, Namibia, South Africa, Peru, Russia, Argentina, Finland, Slovakia, Lithuania, Saudi Arabia, Israel, Afghanistan, Serbia, Sri Lanka, Iraq, Nepal, Jordan, Macau, India, Ukraine, Sweden, Venezuela, South Korea, Hungary, Chile, Gambia, Taiwan, Chile, Morocco, Vietnam, Switzerland, Colombia, Angola, Tibet, Yemen, Japan, Romania, Bulgaria, United Arab Emirates, Algeria, Iran.
FAQs
The oxygen free copper is used in busbars, transformer windings, switchgear, and grounding systems where conductivity and resistance to embrittlement during welding or brazing matter more than raw cost.
Lower oxygen reduces conductivity loss during high-temperature processing and helps maintain conductivity around 101% IACS. It also offers better ductility than standard grades after repeated bending cycles.
ETP copper contains more oxygen and can become embrittled in hydrogen-rich or reducing atmospheres. Oxygen free copper does not have this problem because oxide inclusions are largely eliminated during the refining process.
Select the required temper first (soft, half-hard, or hard) based on the forming operation. Then choose the thickness and width according to the electrical load, current carrying capacity, and available installation space.
Thickness: 0.5 mm to 10 mm
Width: 3 mm to 160 mm
Custom sizes can be manufactured against drawings or samples for
non-standard requirements.