Stainless Steel Turning Grades are constructed for extended life.

Press Release Summary:

As turning grades suited for machining stainless steels, AC6030M and AC6040M feature Absotech™ grade coating that promotes resistance to wear, adhesion, and fracture for extended tool life. While AC6030M possesses TiB2 surface layer that creates adhesion and chipping resistance, AC6040M has Ti and Al composition for optimized flank and notch wear resistance. Chipbreaker lineup, highlighted by EEM breaker, provides maximized chip control when roughing.

Original Press Release:

Sumitomo Introduces AC6030M and AC6040M Stainless Steel Turning Grades

Mount Prospect, IL — Sumitomo Electric Carbide Inc. has released the new AC6030M and AC6040M turning grades for machining stainless steels.

The AC6030M and AC6040M grades feature Sumitomo’s new AbsotechTM grade coating. Absotech coating improves wear resistance, adhesion resistance, and fracture resistance which extends tool life - reducing the cost per part. The AC6030M possesses a new TiB2 surface layer that creates excellent adhesion and chipping resistance. The AC6040M has an optimized Ti and Al composition resulting in superior flank and notch wear resistance.

The AC6030M and AC6040M grades have an expanded chipbreaker lineup highlighted by the newly developed EEM breaker, which provides excellent chip control when roughing.

For more information, contact Sumitomo Electric Carbide, Inc., 1001 Business Center Drive, Mount Prospect, IL 60056, Phone: (800) 950-5202, Fax: (847) 635-9335, e-mail:, or visit the Sumitomo Web site at

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