Sumitomo ST20E: equivalent grades from other brands
uncoated carbide, turning grade. The makers' comparison tables place it at P20 (steel): 2 of 2 tables. The best-confirmed equivalents are Iscar IC50M, Tungaloy KS20.
Note: table built by cross-checking the comparison tables published by Mitsubishi Materials (2025-2027 catalogue), Tungaloy (2023-2024) and Kyocera (2021). Each maker states its table is an estimate based on publications, not approved by the companies named; this one is not approved by them either. Equivalences are indicative: substrate, coating and geometry differ between brands. The catalogue of the grade you use is what counts. Grade names and trademarks belong to their owners.
Frequently asked questions
What is the Iscar equivalent of Sumitomo ST20E?
IC50M, confirmed by 2 of 2 tables at P20.
What material is Sumitomo ST20E for?
For steel: the comparison tables place it at ISO P20.
What problem it solved, how much time it saves you, what is missing. We read everything. We only publish with your permission, and only the way you choose.
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