General Information:
BrandSumitomo
Grade StatusPrimary
ApplicationTurning
Substrate ClassSemi Hard
Coat TypeCVD
Post TreatY

From Sumitomo's website:

Our first recommended grade for gray cast iron. Ultra-thick coating allows for ultra-high speed machining (vc = 700m/min).




Application Range for AC4010K

* If you don't understand the below table? Read This Explanation to make the most out of it!



Equivalent Grades for AC4010K

The most compatible grade from each brand!

A higher score (Up to 100%) means the grades are more compatible. A lower score or a particular grade not listed does not mean it is not a good grade. It means that its physical and mechanical properties are less close to AC4010K



Cutting Speed recommendations for AC4010K

How to use our Cutting Speeds Recommendations


  • Pay attention that your desired unit (SFM or m/min) is selected!
  • Speeds are given for stable conditions of Machine, Tool, and workpiece.
  • An empty cell means the grade is not available for the combination of material and application.
  • For more specific Cutting Speeds Recommendations use our advanced
    SPEEDS AND FEEDS CALCULATOR

Unit Selector:

SFM m/min
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