CVD coated, turning grade. The makers' comparison tables place it at M30 (stainless steel): 2 of 3 tables. The best-confirmed equivalents are Kennametal KCM35B, Mitsubishi MC7025, Sumitomo AC6030M, Tungaloy T6130.
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 Seco TM4000?
GC2025, confirmed by 1 of 3 tables at M30.
What is the Iscar equivalent of Seco TM4000?
IC8250, confirmed by 1 of 3 tables at M30.
What material is Seco TM4000 for?
For stainless steel: the comparison tables place it at ISO M30.
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