Metal

Improvement in the purity levels of metallic chromium and high-purity cobalt

We process chromium and cobalt that have a high degree of purity as “metallic chromium” and “high-purity cobalt,” respectively. Both materials are purified and processed at our own factories. We can purify chromium to the level of 4N (99.99%) and cobalt to the level of 4N5 (99.995%). A wide array of grades are available, and we continually advance our purification technology, to meet the demand for a higher degree of purity.

To the section of “High-purity metal” in the page of products and services

Manufacturing facility for metallic chromium and high-purity cobalt

Oguni Factory

Our metallic chromium and high-purity cobalt are purified and processed at the Oguni Factory of the Yamagata Plant.

  • Process of producing metallic chromium
    Process of producing metallic chromium Process of producing metallic chromium
  • Process of producing high-purity cobalt
    Process of producing high-purity cobaltProcess of producing high-purity cobalt