uncoated carbide, turning grade. The makers' comparison tables place it at M30 (stainless steel): 2 of 2 tables. The best-confirmed equivalents are Iscar IC28, Tungaloy UX30.
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 A30?
IC28, confirmed by 2 of 2 tables at M30.
What material is Sumitomo A30 for?
For stainless steel: the comparison tables place it at ISO M30.
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.
Thank you. We have it: if you allowed publishing, we will write to you to confirm before it goes online.