Intro

This site was initiated by consultants to the permanent magnet industry to bring clarity to the subject of published data on permanent magnet properties.

There seems to be a reluctance – particularly with new entrants to the field – to publish data on the properties they have achieved to date. Even preliminary data (if marked as such) is useful to designers and assembly manufacturers so we would encourage people to publish what they have. We are asking companies with a “No property data found” entry to send us a link so that we can add it to this page.

We do not make any comments or recommendations about property data that is published.

• Vacuumschmelze (eVAC US)
  • NdFeB Magnets – VACODYM | VAC
  • SmCo Magnets – VACOMAX | VAC
• Electron Energy (EEC)
  • EECFY21_SmCo Sell Sheet.pdf
• Noveon – No property data found.
• Niron – No property data found.
• Bunting Dubois
  • Catalogs | Custom Magnets & Magnet Applications | Bunting-DuBois – p34, Compression and Injection molded only produced in house.
• MP Materials – No property data found.
• GKN (Germany)
  • https://www.gknpm.com/media/0gophghv/permanent-magnet-performance-guide-rev-00-en.pdf
• HyProMag
  • Executive summary of Recent Technical Progress by HyProMag Ltd – June 2025 – HyProMag
• USA Rare Earth – No property data found.
• Tengam – Due to the large number of grades and binders they stopped publishing grades listing in 2023. Earlier version from archive.org can be found here.
  • Magnetic Compounds • Tengam
• MS Schramberg (claims for US manufacture?)
  • Downloads | MS Schramberg
• Magnetfabrik Bonn
  • Material list according to DIN – Magnetfabrik Bonn
• Arnold Magnetic Technology
  • Samarium Cobalt Magnets | Arnold Magnetic Technologies
• Neo Performance Materials
  • Magnetic Properties – Magnequench
• Magnetti Ljubljana
  • Products | Magnets Ljubljana – not clear what is actually produced in house.
• Max Baermann – Specifications – Max Baermann GmbH.
• Reemag – No property data found.
• Sintex
  • STX-polymer-bonded-NdFeb_.pdf
  • Probably only bonded neo produced in house.
• Matnex (Materials Nexus) – Announced RE free magnets but website doesn’t even mention magnets any more. No property data found.
• CBNSAV Defense – (Turkiye) – No property data found.
• Vulcan Elements – No property data found.
• PMT Critical Metals – No property data found.
• SG Tec (UK) – https://sgtec.com/products/ultra-dense-compression-bonded-magnets/

Contact Mail@WhereIsTheData.com with links to be added.

Contributors of the information include Dr James Bell, Dr Gareth Hatch and Dr John Ormerod.