Höganäs Somaloy® soft magnetic composite powders are typically identified by the Somaloy® trademark, followed by a material designation such as 500, 700, 1000, 130i, or 110i, and then by a performance suffix such as 1P, 3P, or 5P. Based on Höganäs’ current public product information, the clearest part of the naming structure is the suffix: 1P is positioned as the baseline level, 3P is developed for applications where mechanical strength and permeability are more important, and 5P is intended for applications where lower losses are the priority.
In practical reading, a Somaloy grade is best understood in two layers. The first layer is the material variant, such as Somaloy 700, Somaloy 1000, or Somaloy 130i. The second layer is the performance level, shown by 1P, 3P, or 5P. This is also the safest way to interpret the grade names, because Höganäs’ current public product pages and material data sheets present these designations through specific product variants rather than through one simple universal decoding rule for every number or letter combination.
Additional designations such as HR and i appear in selected Somaloy grades, including variants such as 700HR 3P, 700HR 5P, 130i 1P, and 110i 5P. However, in the latest public materials, Höganäs mainly presents these as part of the individual product names and corresponding data sheets. For this reason, it is better not to assign a fixed general meaning to every letter or number in the grade name unless it is clearly stated in the official material for that specific product.
As a result, Somaloy grade selection should not be based on the grade code alone. In practical design and material selection, engineers usually need to consider the required balance of permeability, mechanical strength, electrical resistivity, magnetic flux density, and core loss, and then review the data sheet of the specific Somaloy grade accordingly.
