Arnold Magnetic Technologies Our Highest Performing SmCo Material Arnold Magnetic Technologies’ Samarium Cobalt (SmCo) materials break the performance barriers of other magnetic components. Offering several operational advantages, our topof-the-line RECOMA Sm2Co17 alloys are the material of choice for demanding rare-earth magnet applications. Key Benefits Performance at temperature extremes – RECOMA 33E SmCo magnetic materials offer high stability and magnetic output at elevated temperatures. Broad-based source of supply – Unlike neodymium (Nd) magnets, which need high levels of rare dysprosium (Dy) to function at higher temperatures, SmCo magnets use materials that are more widely available. This makes SmCo pricing more stable and less prone to market changes. Corrosion resistance – Arnold’s high-technology coating facilities offer protective coating options that improve resistance to damage in extreme temperatures and other harsh environments. Breadth of Applications Use Arnold’s RECOMA 33E to achieve higher performance and efficiency in your automotive, motorsports, aerospace, defense, industrial, or utility application. RECOMA 33E is most useful: UNDER THE HOOD For Hall sensors, drive components, and energy recovery systems that demand stability and consistent performance over a high temperature range. IN THE AIR For rotor applications that are subject to high temperatures under full operation. IN HARSH ENVIRONMENTS Where other materials are subject to degradation and even failure under extreme operational conditions. Comparison of Magnetic Performance 12.5 R33E Cross at 100ºC Residual Induction, kG Temperature (°C) ARNOLD MAGNETIC TECHNOLOGIES | US: 585.764.8974 [email protected] | arnoldmagnetics.com UK: (+44) (0) 1909 772021 [email protected] | CH: (+41) (0) 56 464 21 00 [email protected] SmCo outperforms neodymium at increased temperatures. Neodymium needs high levels of dysprosium to perform above 100°C. Better performance under extreme conditions — from motorsports to aerospace.

Market Leading Performance At Higher Temperatures Magnetic Properties Thermal Properties Other Properties Gauss Tesla Reversible Temp. Coefficients(1) of Induction, α(Br) of Coercivity, α(Hcj) BHmax Max. Energy Product Flexural Strength Compressive Strength Coefficient of Thermal Expansion Thermal Conductivity Young's Modulus Hardness, Vickers Coefficients measured between 20 and 200 ºC Demagnetization Curves Polarization J Flux Density B Notes: The material data and demagnetization curves shown above represent typical properties that may vary due to product shape and size. Demagnetization curves...