Grade Info

General Information:
BrandSumitomo
Grade StatusOld Version
Substrate ClassSemi Tough
Coat TypeCVD
Post TreatN

OLD GRADE NOTICE!

AC630M is an older generation grade that is no longer recomended by Sumitomo
The recomended modern alternative is :AC6030M
The data below is the data for AC6030M However, It should be fairly accurate also for AC630M

From Sumitomo's website:

Grade for general stainless steel turning, 1st choice, by the improvement of strength of coating layer with new CVD coating "Absotech®" and adhesion resistance by smooth edge treatment, realizes much less damage of cutting edge, stable and long tool life.



Application Range for AC6030M (AC630M)

Watch the Video:
"How to use the Carbide Grades Information"
and get the most out of this page!


Equivalent Grades for AC6030M (AC630M)

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 echo


Cutting Speed recommendations for AC6030M (AC630M)

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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