{"id":29942,"date":"2026-05-13T12:53:57","date_gmt":"2026-05-13T12:53:57","guid":{"rendered":"https:\/\/doingcable.com\/?p=29942"},"modified":"2026-05-13T17:48:47","modified_gmt":"2026-05-13T17:48:47","slug":"the-difference-between-low-oxygen-copper-rod-and-oxygen-free-copper-rod-a-technical-guide-for-cable-manufacturers","status":"publish","type":"post","link":"https:\/\/doingcable.com\/tr\/the-difference-between-low-oxygen-copper-rod-and-oxygen-free-copper-rod-a-technical-guide-for-cable-manufacturers\/","title":{"rendered":"D\u00fc\u015f\u00fck Oksijenli Bak\u0131r \u00c7ubuk ile Oksijensiz Bak\u0131r \u00c7ubuk Aras\u0131ndaki Fark"},"content":{"rendered":"

In the cable manufacturing industry, the choice of raw material directly determines the final performance, reliability, and service life of power cables, control cables, and specialty wires. Two of the most commonly discussed materials are Low Oxygen Copper Rod<\/strong> Ve Oxygen-Free Copper Rod (OFC)<\/strong>.<\/p>\n\n\n\n

As a veteran supplier with over 15 years of experience providing cable machinery and turnkey solutions to Middle East projects, we help clients select the right copper rod for harsh desert environments, high-voltage transmission, and Vision 2030 renewable energy initiatives.<\/p>\n\n\n\n

1. Oxygen Content: The Fundamental Difference<\/strong><\/h3>\n\n\n\n
    \n
  • Low Oxygen Copper Rod<\/strong>: Oxygen content typically ranges from 200-400 ppm<\/strong> (sometimes up to 500-700 ppm). Produced mainly by S\u00fcrekli D\u00f6k\u00fcm ve Haddeleme (CCR)<\/strong> process. Oxygen exists as copper oxide particles near grain boundaries.<\/li>\n\n\n\n
  • Oxygen-Free Copper Rod (OFC)<\/strong>: Oxygen content <10 ppm<\/strong> (premium grades <5 ppm or even <2.5 ppm). Produced by Upward Continuous Casting (Upcast)<\/strong> method under strict oxygen-free atmosphere.<\/li>\n<\/ul>\n\n\n\n

    Why it matters<\/strong>: Even small amounts of oxygen affect conductivity, ductility, and long-term reliability in high-temperature or hydrogen-rich environments.<\/p>\n\n\n\n

    Fig.1: Low Oxygen Copper Rod production via Continuous Casting & Rolling Line (factory real shot)<\/p>\n\n\n\n

    2. Production Process Comparison<\/strong><\/h4>\n\n\n\n

    Low Oxygen Copper Rod (CCR Route)<\/strong>: Electrolytic copper cathodes melted in shaft\/vertical furnace \u2192 flows through holding furnace & tundish \u2192 cast into billet with high cooling intensity \u2192 multi-pass hot rolling under protective atmosphere. Creates refined hot-worked microstructure.<\/p>\n\n\n\n

    Oxygen-Free Copper Rod (Upcast Route)<\/strong>: Melted in induction furnace \u2192 upward continuous casting through graphite mold in controlled atmosphere \u2192 optional cold rolling. Produces cast structure with large grains.<\/p>\n\n\n\n

    \"Continuous<\/figure>\n\n\n\n

    3. Performance Data Comparison (Critical for Middle East Projects)<\/h4>\n\n\n\n
    M\u00fclk<\/th>Low Oxygen Copper Rod<\/th>Oxygen-Free Copper Rod (OFC)<\/th>Winner & Cable Application Impact<\/th><\/tr><\/thead>
    Oxygen Content<\/td>200-400 ppm<\/td><10 ppm (often <5 ppm)<\/td>OFC \u2013 Better long-term stability<\/td><\/tr>
    Elektriksel \u0130letkenlik<\/td>98-99% IACS<\/td>\u2265101% IACS<\/td>OFC \u2013 Lower energy loss in HVDC & renewable cables<\/td><\/tr>
    \u00c7ekme Mukavemeti<\/td>220-250 MPa<\/td>200-220 MPa<\/td>Low Oxygen \u2013 Better for overhead lines<\/td><\/tr>
    Elongation \/ Ductility<\/td>Good (but oxide inclusions)<\/td>Excellent (uniform structure)<\/td>OFC \u2013 Superior for fine wire drawing<\/td><\/tr>
    Drawability (Fine Wire)<\/td>Demanding on conditions<\/td>Excellent (down to 0.05mm)<\/td>OFC \u2013 Magnet wire & high-end cables<\/td><\/tr>
    Hydrogen Embrittlement Resistance<\/td>Il\u0131man<\/td>Harika<\/td>OFC \u2013 Critical in high-temp desert projects<\/td><\/tr>
    Surface Appearance<\/td>Bright but possible imperfections<\/td>Mirror bright & smooth<\/td>OFC \u2013 Premium look & quality<\/td><\/tr>
    Maliyet<\/td>Lower (high volume)<\/td>15-30% higher<\/td>Low Oxygen \u2013 Cost-effective bulk
    <\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

    Data sources: Industry standards (IACS), manufacturer benchmarks.<\/p>\n\n\n\n

    \"Pure<\/figure>\n\n\n\n

    4. Applications in Cable Manufacturing<\/strong><\/h4>\n\n\n\n
      \n
    • Low Oxygen Copper Rod<\/strong>: Ideal for standard power cables<\/strong>, overhead conductors, and large-diameter wires where cost-efficiency and mechanical strength matter. Widely used in Middle East grid expansion projects requiring reliable, high-volume supply.<\/li>\n\n\n\n
    • Oxygen-Free Copper Rod<\/strong>: Preferred for high-performance cables<\/strong> \u2014 new energy (solar\/wind), high-frequency, magnet wires, and specialty cables needing maximum conductivity and flexibility. Excellent for hydrogen-rich or high-temperature environments common in Saudi Arabia and UAE.<\/li>\n<\/ul>\n\n\n\n

      Middle East Recommendation<\/strong>: For Vision 2030 renewable projects and NEOM smart grid, we recommend OFC<\/strong> for critical transmission lines to minimize losses; Low Oxygen<\/strong> for cost-effective distribution networks.<\/p>\n\n\n\n

      5. How to Choose the Right One for Your Plant<\/strong><\/h4>\n\n\n\n
        \n
      1. Define project requirements (voltage, environment, wire gauge).<\/li>\n\n\n\n
      2. Test samples for conductivity and drawability.<\/li>\n\n\n\n
      3. Consider total cost of ownership \u2014 OFC may save energy and reduce maintenance.<\/li>\n\n\n\n
      4. Partner with experienced suppliers offering both CCR and Upcast lines for flexible production.<\/li>\n<\/ol>\n\n\n\n

        SSS<\/strong> <\/h3>\n\n\n\n

        Q: Can low oxygen and oxygen-free rods be used together?<\/strong> <\/p>\n\n\n\n

        A: Yes, but matching properties is critical to avoid performance variation.<\/p>\n\n\n\n

        Q: Which is better for enameled wire?<\/strong> <\/p>\n\n\n\n

        A: Low oxygen often performs well in softness and rebound; OFC excels in ultra-fine drawing.<\/p>\n\n\n\n

        <\/p>","protected":false},"excerpt":{"rendered":"

        In the cable manufacturing industry, the choice of raw material directly determines the final performance, reliability, and service life of<\/p>","protected":false},"author":1,"featured_media":29958,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_joinchat":[],"footnotes":""},"categories":[537,535,565],"tags":[652,649,651,646,648,647,650],"class_list":["post-29942","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-low-oxygen-copper-rod","category-product-knowledge-base","category-uncategorized-en","tag-cable-manufacturing","tag-ccr-process","tag-copper-rod-microstructure","tag-low-oxygen-copper-rod","tag-ofc-vs-low-oxygen","tag-oxygen-free-copper-rod","tag-upcast-copper-rod"],"_links":{"self":[{"href":"https:\/\/doingcable.com\/tr\/wp-json\/wp\/v2\/posts\/29942","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/doingcable.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/doingcable.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/doingcable.com\/tr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/doingcable.com\/tr\/wp-json\/wp\/v2\/comments?post=29942"}],"version-history":[{"count":4,"href":"https:\/\/doingcable.com\/tr\/wp-json\/wp\/v2\/posts\/29942\/revisions"}],"predecessor-version":[{"id":29963,"href":"https:\/\/doingcable.com\/tr\/wp-json\/wp\/v2\/posts\/29942\/revisions\/29963"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/doingcable.com\/tr\/wp-json\/wp\/v2\/media\/29958"}],"wp:attachment":[{"href":"https:\/\/doingcable.com\/tr\/wp-json\/wp\/v2\/media?parent=29942"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/doingcable.com\/tr\/wp-json\/wp\/v2\/categories?post=29942"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/doingcable.com\/tr\/wp-json\/wp\/v2\/tags?post=29942"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}