Samarium–cobalt (SmCo) magnets belong to the category of rare-earth magnets and are composed of samarium (Sm), a rare-earth element, and cobalt (Co), a transition metal. They are among the strongest permanent magnets.

Apr 16, 2024 · SmCo magnets are rare-earth magnets that are produced by either of the two processes known as bonding and sintering. Learn how samarium cobalt magnets are made.

Mar 14, 2025 · Samarium cobalt magnets are composed of two primary phases: SmCo5: This phase has a lower magnetic energy product but excellent temperature stability. Sm2Co17: This phase offers higher magnetic strength and improved temperature resistance.

Jun 14, 2024 · SmCo magnets are available in two series defined by the ratio of Samarium to Cobalt: Series 1-5 (SmCo5) and Series 2-17 (Sm2Co17). These magnets are composed of Samarium-Cobalt alloys with a Sm-Co ratio of 1-5, that is to say, one atom of Samarium with five atoms of Cobalt. By weight, the Samarium would occupy 36% of the total.

Samarium-cobalt magnets, also known as SmCo magnets, are a type of rare-earth magnet that offers a unique combination of high magnetic strength and excellent temperature stability. These magnets are composed of samarium and cobalt, with small amounts of other elements like iron, copper, and zirconium.

Samarium-Cobalt magnets are brittle and prone to cracking and chipping. Here are some typical mechanical properties of SmCo magnets: Density: 8.2–8.4 (g/cm 3) Tensile strength: 35(N/mm 2) Flexural strength: 150 (N/mm 2) Vickers hardness: 500-650 (HV)C

Extremely strong rare earth magnets, Samarium Cobalt magnets (SmCo) are composed of samarium, cobalt, and iron. Not sure if samarium cobalt is the best material for your application? Review our permanent magnetic materials comparison for more information.

Integrated Magnetics provides SmCo magnetic materials properties data for your samarium cobalt product knowledge needs. Contact us today to learn more.

In this article, we will explore the composition, properties, and diverse applications of SmCo magnets. SmCo magnets are primarily composed of samarium (Sm) and cobalt (Co), along with small amounts of other elements such as iron (Fe), copper (Cu), and zirconium (Zr).

There are two primary grades of samarium cobalt magnets: SmCo 1:5 and SmCo 2:17. The numbers represent the ratio of samarium to cobalt in the alloy, with SmCo 2:17 typically …