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Aluminum Disks Disk Blanks for Thin Film Media Oxide Coating Media

Kobe Steel Ltd. - a Marubeni Sunnyvale trading partner - is the leading manufacturer world-wide for aluminum disks, aluminum disk blanks, and substrates for computer memory disks, with an estimated 60% share of the world market. Since first moving into this field in 1974, Kobe Steel has focused its efforts on developing and manufacturing high quality products that will satisfy customers needs.

Our product range covers the full line-up of alloys and all sizes of disks. The use of high quality materials and an advanced manufacturing process guarantees near-perfect flatness. The finest quality disk blanks in the world are assured through rigorous testing and inspection.


Aluminum Disks


Aluminum Alloys for Disk Blanks

High-quality aluminum alloys for oxide coating media applications.
The aluminum disks feature excellent mechanical properties suitable for both thin film media and oxide coat media applications.

Disk Blanks for Thin Film Media

High-quality disk blanks for thin film media applications.
The aluminum disks feature excellent uniformity properties on micro-pits, substrate surface, and intermetallic compound distributions on both the Al-Fe phase and Mg-Si phase. Thus, the products are very suitable suitable for disk applications and plating.

Disk Blanks for Oxide Coating Media

High-quality disk blanks for oxide coating media applications.
The aluminum disks feature excellent uniformity properties on intermetallic compound distributions on both the Al-Fe phase and Mg-Si phase. Thus, the products are very suitable suitable for disk applications and plating.


Other Products for The Computer Industry


Computer Industry Products

Kobe Steel Ltd. also has considerable experience in manufacturing precision products, such as sputtering targets and surface inspection systems, for use in computers and other electronic equipment, and well understands the need for quality and high reliability.

  • Sputtering target materials
  • Precision-processed parts for hard disk drives
  • Polygon mirrors
  • Leadframes
  • Aluminium frames for pellicular film

Contact Marubeni Sunnyvale

For more information aluminum disks and other products from Kobe Steel Ltd., please contact Marubeni Sunnyvale and we will send you a full brochure.