Sumitomo ACK200: equivalent grades from other brands
coated, milling grade. The makers' comparison tables place it at K10 (cast iron): 2 of 3 tables. The best-confirmed equivalents are Sandvik GC3220, Kennametal KCK15, Seco MK1500, Iscar IC5100.
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 Sandvik equivalent of Sumitomo ACK200?
GC3220, confirmed by 2 of 3 tables at K10.
What is the Iscar equivalent of Sumitomo ACK200?
IC5100, confirmed by 2 of 3 tables at K10.
What material is Sumitomo ACK200 for?
For cast iron: the comparison tables place it at ISO K10.
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