Sandvik Finemac™ free-cutting steel

Sandvik wire products acquired by Zapp AG

Sandvik’s wire business has been acquired by Zapp AG from August 31, 2018. Over the coming months Zapp will be integrating the Sandvik portfolio, to provide a smooth transition for customers. During the integration period, the full line of Sandvik wire products will continue to be accessible on this website, or via the Zapp website.

Please note: divestment of wire products does not include EXERA fine wire and medical wire components manufactured by Sandvik Palm Coast.


Sandvik Finemac™ is an environmentally friendly, lead–free, free-cutting wire grade, which combines excellent machining properties with high hardness and good dimensional stability. This free-cutting high-carbon steel wire has been specially developed for fine-mechanical machining applications.

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Importantly, the material offers a much wider hardening window than other grades and is, therefore, not sensitive to slower cooling rates. As a result, users can obtain more efficient furnace utilization through processing bigger batches of components and benefit from lower energy costs per kilo produced.

A preferred material

Sandvik Finemac™ has all the characteristics of a hardenable, free-cutting high-carbon steel such as 20AP, but with the important and additional benefit of being lead-free. It is ideally suited for producing long narrow components with tight tolerances. Sandvik Finemac™ also has excellent cold-heading properties.

Positive customer feedback confirms that in terms of machinability, tool durability and heat treatment, Sandvik Finemac™ free-cutting wire is now preferred to other carbon steel free-cutting wire.

Main characteristics of Sandvik Finemac™

  • Lead-free composition
  • Excellent machinability
  • High wear resistance
  • Tight and consistent tolerances
  • Wide temperature and time range during hardening

Typical applications for Sandvik Finemac™ free-cutting wire

  • ABS brake components
  • Precision instruments
  • Shafts
  • Test probes
  • Watch parts