CAT.AC4000KBROCHURE.

8/17

Grades for Cast Iron

AC4010K \ AC4015K Series

AC4010K for Precision Cutting of Cast Iron &

AC4015K General Purpose Cutting of Cast Iron
 ■ AC4010K/AC4015K

■ Grade Description
Newly developed high adhesion technology, crystal
orientation control technology, and residual stress control
technology for LONGER AND STABLE TOOL LIFE with
various cast irons—from gray cast iron to high-strength and
ductile cast irons.

Special Surface More than twice the compressive stress

and 2× chipping resistance compared with
Treatment conventional products

Crystal Orientation- 2× crater wear resistance for high-speed

Controlled machining compared with conventional
Alumina Layer products

C-rich Fine TiCN 2× flank wear resistance compared with

Layer conventional products

High Adhesion Smooth cutting edge treatment

(Rz 0.15μm 0.07μm)
Carbide Technology for drastically improved peeling resistance
Substrate

■ Application Range
2300
AC4010K
2000 AC4010K Our first recommended grade for gray
cast iron. Ultra-thick coating allows for
ultra-high speed machining (vc = 2,300
Cutting Speed (SFM)

1650 AC405K
Previous grade to AC4010K
SFM).

1300 AC4015K
Our first recommended grade for ductile
975 AC4015K cast iron. High-adhesion, high-strength
coating provides longer and stable tool
life.
650 AC415K
Previous grade to AC4015K

AC420K
330 AC420K Excellent fracture resistance in heavy
For heavy interrupted and unstable machining
interrupted and unstable machining
0

Light Interrupted
Continuous Cut Interrupted
Finishing Roughing
■ AC4010K Application Examples ■ AC4015K Application Examples
.016 ■ 400

Cutting Time before Chipping Occurs (Seconds)

Comp’s A ■ ◆ Conv.
Flank Wear Width (in.)

◆ 300
.012 ■
●
◆

.008 ■
● AC4010K 200
●
◆ ●
●
.004 ◆
■ 100
●

0 2 4 6 8 10 0 AC4010K AC4015K Conv. Competitor

Cutting Time (Minutes) +EGZ +EGZ

After 240 After 240

AC4010K+EGZ Conv. Competitor Seconds Seconds
Work Material: Gray Cast, Continuous Insert: CNMG432 AC4010K+EGZ AC4015K+EGZ
Cutting Conditions: vc = 1,950 SFM f = 0.016 IPR ap = 0.078" Dry

After 240 After 240

Seconds Seconds
Conv. Competitor
Work Material: Ductile Iron, Interupted Insert: CNMG432
Cutting Conditions: vc = 1,100 sfm f = 0.012 IPR ap = 0.059" Wet

Gray Cast Iron Brake disc AC4010K Gray Cast Iron Brake disc AC4015K
1.4× tool life thanks to minimal wear with the AC4010K 1.4× tool life with minimal damage even after 35 passes using AC4015K
Vbmax: 0.0107" Vbmax: 0.011"
Vbmax: 0.009" Vbmax: 0.009"

Low wear High wear No Substrate Exposure Substrate Exposed

AC4010K + EGZ Competitor AC4015K + EGZ Competitor

70 Parts/ Corner 50 Parts/ Corner 35 Parts/ Corner 35 Parts/ Corner
Insert: CNMG432 AC4010K Acute Angle Facing of Mill-Scaled Work Insert: CNMG432 AC4015K Obtuse Angle Facing of Mill-Scaled Work
Cutting Conditions: vc = 3,150 sfm f = 0.0296 IPR ap = 0.078" Dry Cutting Conditions: vc = 3,150 sfm f = 0.0296 IPR ap = 0.078" Wet

Ductile Iron Gear case AC4010K AC4015K Gray Cast Iron Flywheel AC4015K
1.2× tool life when combined with EME chipbreaker for roughing Minimal wear even after twice the cutting passes thanks to excellent
Vbmax: 0.0083" wear resistance

AC4015K + EME
12 Parts/ Corner
Vbmax: 0.0095" Vbmax: 0.0213"

AC4015K + EME Competitor

Chipping 80 Parts/ Corner 40 Parts/ Corner
AC4010K + EME Competitor
12 Parts/ Corner 10 Parts/ Corner

Insert: CNMG432 Interrupted Insert: WNMA432 Continuous

Cutting Conditions: vc = 720 sfm f = 0.0134 IPR ap = 0.059" Wet Cutting Conditions: vc = 750 sfm f = 0.0119 IPR ap = 0.078" Wet
 ■ Chipbreaker Selection Guide
Low

EGU EGU 0.25

2.05
Low cutting force chipbreakers suitable for low-rigidity
25°
work such as with small-diameter or long pieces
7°
Rigidity of work piece

ENZ 0.25
1.9
14° General finishing chipbreaker offering both sharpness
ENZ 4°
and strength

EME
EGZ 0.25
1.9
16° First-recommended chipbreaker with excellent cutting
edge strength and versatility
EGZ Flat Top
High

EME 0.3
2.4
Roughing chipbreaker offering both sharpness and
Interrupted Continuous strength in high-feed cutting
4°
Interruption

■ Chipbreaker Application Range

Negative Positive
Finishing Medium Cut Roughing

Finishing Medium Cut Roughing

.24 EME Flat Top .24
Large

Large
Depth of cut (in.)

EMU Flat Top EME

Depth of cut (in.)

EMU Flat Top

.16 EGZ .16
EGU EGZ Flat Top
EMU
Depth of Cut

Depth of Cut
.08 ENZ .08 EMU
ENZ
EGU ESU ESU

0 .008 .0016 .0024 0 .008 .0016 .0024

Sharp Edge Strong Edge Sharp Edge Strong Edge
Feed rate (IPR) Feed rate (IPR)

■ Recommended Cutting Conditions (Red text indicates first recommendations.)

Cutting Conditions Min. - Optimum - Max.
Work Material Cutting Process Grades ap (in.) f (IPR) vc (SFM)
Depth of Cut Feed Rate Cutting Speed
Continuous to General AC4010K .0197 - .0787 - .236 .0039 - .0098 - .0157 650 - 1,300 - 2300
Gray Cast Iron Interrupted AC4015K .0197 - .0787 - .236 .0039 - .0118 - .0197 600 - 1,000 - 1,450
(ASTM A48, etc)
Heavy Interrupted AC420K .0197 - .0787 - .236 .0039 - .0118 - .0236 500 - 650 - 1,000
Continuous AC4010K .0197 - .0787 - .236 .0039 - .0098 - .0157 600 - 1,000 - 1,450
Ductile Cast Iron General to Interrupted AC4015K .0197 - .0787 - .236 .0039 - .0118 - .0197 525 - 820 - 1,300
(ASTM A536, etc)
Heavy Interrupted AC420K .0197 - .0787 - .236 .0039 - .0118 - .0236 400 - 550 - 820
Continuous AC4010K .0197 - .0787 - .236 .0039 - .0098 - .0157 525 - 820 - 1,300
High Strength
Ductile Cast Iron General to Interrupted AC4015K .0197 - .0787 - .236 .0039 - .0118 - .0197 450 - 650 - 1,150
(ADI, etc) Heavy Interrupted AC420K .0197 - .0787 - .236 .0039 - .0118 - .0236 260 - 500 - 720
AC4010K \ AC4015K Availability - Negative Inserts
CNMA 80° Diamond/Negative SNMA 90° Square/Negative TNMG Triangle/Negative

Insert Hole

Insert Hole
Insert Hole

Thickness

Thickness
Thickness

Inscribed

Inscribed
AC4010K
AC4015K

AC4010K
AC4015K
Inscribed

Diameter

Diameter
AC4010K
AC4015K

Diameter
Sumitomo Sumitomo Sumitomo

Radius

Radius
Radius

Circle

Circle
Circle

Nose

Nose
Nose
Catalog Catalog Catalog
Number Number Number

CNMA431 l l .500 .1875 .0156 .2031 SNMA322 l l .375 .125 .0313 .150 TNMG331EGU l l .375 .1875 .0156 .150
CNMA432 l l .500 .1875 .0313 .2031 SNMA431   .500 .1875 .0156 .2031 TNMG332EGU l l .375 .1875 .0313 .150
CNMA433 l l .500 .1875 .0469 .2031 SNMA432 l l .500 .1875 .0313 .2031 TNMG333EGU l  .375 .1875 .0469 .150
CNMA434 l l .500 .1875 .0625 .2031 SNMA433 l l .500 .1875 .0469 .2031 TNMG334EGU l  .375 .1875 .0625 .150
CNMA543 l l .625 .250 .0469 .250 SNMA434  l .500 .1875 .0625 .2031 TNMG431EGU l l .500 .1875 .0156 .2031
CNMA544 l l .625 .250 .0625 .250 SNMA435  .500 .1875 .0781 .2031 TNMG432EGU l l .500 .1875 .0313 .2031
CNMA643 l l .750 .250 .0469 .3126 SNMA543  l .625 .250 .0469 .250 TNMG433EGU l l .500 .1875 .0469 .2031
CNMA644 l  .750 .250 .0625 .3126 SNMA544  .625 .250 .0625 .250 TNMG331EGZ l  .375 .1875 .0156 .150
CNMG 80° Diamond/Negative SNMA643  l .750 .250 .0469 .3126 TNMG332EGZ l l .375 .1875 .0313 .150
SNMA644 l l .750 .250 .0625 .3126 TNMG333EGZ  l .375 .1875 .0469 .150
CNMG431EGU l  .500 .1875 .0156 .2031
SNMG 90° Square/Negative TNMG432EGZ l l .500 .1875 .0313 .2031
CNMG432EGU l l .500 .1875 .0313 .2031
TNMG433EGZ l l .500 .1875 .0469 .2031
CNMG433EGU l l .500 .1875 .0469 .2031 SNMG321EGU   .375 .125 .0156 .150
TNMG332EME l l .375 .1875 .0313 .150
CNMG434EGU l  .500 .1875 .0625 .2031 SNMG322EGU   .375 .125 .0313 .150
TNMG333EME l  .375 .1875 .0469 .150
CNMG542EGU l l .625 .250 .0313 .250 SNMG431EGU l  .500 .1875 .0156 .2031
TNMG432EME l l .500 .1875 .0313 .2031
CNMG543EGU l l .625 .250 .0469 .250 SNMG432EGU l l .500 .1875 .0313 .2031
TNMG433EME l l .500 .1875 .0469 .2031
CNMG544EGU l l .625 .250 .0625 .250 SNMG433EGU l l .500 .1875 .0469 .2031
TNMG434EME l l .500 .1875 .0625 .2031
CNMG432EGUW l l .500 .1875 .0313 .2031 SNMG434EGU l l .500 .1875 .0625 .2031
TNMG332ENZ  l .375 .1875 .0313 .150
CNMG433EGUW l l .500 .1875 .0469 .2031 SNMG542EGU l l .625 .250 .0313 .250
TNMG333ENZ  l .375 .1875 .0469 .150
CNMG431EGZ l l .500 .1875 .0156 .2031 SNMG543EGU l l .625 .250 .0469 .250
TNMG432ENZ l l .500 .1875 .0313 .2031
CNMG432EGZ l l .500 .1875 .0313 .2031 SNMG544EGU l l .625 .250 .0625 .250
TNMG433ENZ   .500 .1875 .0469 .2031
CNMG433EGZ l l .500 .1875 .0469 .2031 SNMG432EGZ l l .500 .1875 .0313 .2031
TNMG666ENZ l .750 .375 .0938 .3126
CNMG434EGZ  l .500 .1875 .0625 .2031 SNMG433EGZ l l .500 .1875 .0469 .2031
CNMG543EGZ l l .625 .250 .0469 .250 SNMG543EGZ l .625 .250 .0469 .250 VNMA 35° Diamond/Negative
CNMG544EGZ  l .625 .250 .0625 .250 SNMG643EGZ   .750 .250 .0469 .3126 VNMA331  l .375 .1875 .0156 .150
CNMG643EGZ l l .750 .250 .0469 .3126 SNMG644EGZ  .750 .250 .0625 .3126 VNMA332 l l .375 .1875 .0313 .150
CNMG644EGZ   .750 .250 .0625 .3126 SNMG432EME l l .500 .1875 .0313 .2031 VNMA333 l  .375 .1875 .0469 .150
CNMG432EME l l .500 .1875 .0313 .2031 SNMG433EME l l .500 .1875 .0469 .2031 VNMG 35° Diamond/Negative
CNMG433EME l l .500 .1875 .0469 .2031 SNMG434EME l l .500 .1875 .0625 .2031
VNMG331EGU l l .375 .1875 .0156 .150
CNMG434EME l  .500 .1875 .0625 .2031 SNMG542EME l l .625 .250 .0313 .250
VNMG332EGU l l .375 .1875 .0313 .150
CNMG542EME l l .625 .250 .0313 .250 SNMG543EME l l .625 .250 .0469 .250
VNMG333EGU   .375 .1875 .0469 .150
CNMG543EME l l .625 .250 .0469 .250 SNMG544EME l l .625 .250 .0625 .250
VNMG331EGZ l  .375 .1875 .0156 .150
CNMG544EME l l .625 .250 .0625 .250 SNMG643EME l l .750 .250 .0469 .3126
VNMG332EGZ l l .375 .1875 .0313 .150
CNMG643EME l l .750 .250 .0469 .3126 SNMG644EME l l .750 .250 .0625 .3126
VNMG331ENZ l  .375 .1875 .0156 .150
CNMG644EME l l .750 .250 .0625 .3126 SNMG646EME l l .750 .250 .0938 .3126
VNMG332ENZ l l .375 .1875 .0313 .150
CNMG646EME  l .750 .250 .0938 .3126 SNMG866EME l l 1.00 .375 .0938 .3622
CNMG866EME l l 1.00 .375 .0938 .3622 SNMG432ENZ l l .500 .1875 .0313 .2031 WNMA Trigon/Negative
CNMG432EMU   .500 .1875 .0313 .2031 SNMG433ENZ  l .500 .1875 .0469 .2031 WNMA432 l l .500 .1875 .0313 .2031
CNMG433EMU  .500 .1875 .0469 .2031 SNMG543ENZ l l .625 .250 .0469 .250 WNMA433 l l .500 .1875 .0469 .2031
CNMG432ENZ l l .500 .1875 .0313 .2031 SNMG643ENZ   .750 .250 .0469 .3126 WNMA434   .500 .1875 .0625 .2031
CNMG433ENZ l l .500 .1875 .0469 .2031 SNMG644ENZ  l .750 .250 .0625 .3126 WNMG Trigon/Negative
CNMG543ENZ l l .625 .250 .0469 .250 TNMA Triangle/Negative WNMG331EGU l l .375 .1875 .0156 .150
CNMG544ENZ  l .625 .250 .0625 .250 TNMA322  l .375 .125 .0313 .150 WNMG332EGU l l .375 .1875 .0313 .150
CNMG643ENZ  l .750 .250 .0469 .3126 TNMA331   .375 .1875 .0156 .150 WNMG333EGU   .375 .1875 .0469 .150
CNMG644ENZ l l .750 .250 .0625 .3126 TNMA332 l l .375 .1875 .0313 .150 WNMG431EGU l l .500 .1875 .0156 .2031
DNMA 55° Diamond/Negative TNMA333 l  .375 .1875 .0469 .150 WNMG432EGU l l .500 .1875 .0313 .2031
DNMA432 l l .500 .1875 .0313 .2031 TNMA334   .375 .1875 .0625 .150 WNMG433EGU l l .500 .1875 .0469 .2031
DNMA433 l l .500 .1875 .0469 .2031 TNMA432  l .500 .1875 .0313 .2031 WNMG432EGUW l l .500 .1875 .0313 .2031
DNMG 55° Diamond/Negative TNMA433 l l .500 .1875 .0469 .2031 WNMG433EGUW l l .500 .1875 .0469 .2031
TNMA434 l  .500 .1875 .0625 .2031 WNMG332EGZ l l .375 .1875 .0313 .150
DNMG331EGU l l .375 .1875 .0156 .150
TNMA543 l  .625 .250 .0469 .250 WNMG333EGZ   .375 .1875 .0469 .150
DNMG332EGU l l .375 .1875 .0313 .150
TNMA544 l .625 .250 .0625 .250 WNMG431EGZ l l .500 .1875 .0156 .2031
DNMG333EGU   .375 .1875 .0469 .150
WNMG432EGZ l l .500 .1875 .0313 .2031
DNMG431EGU l  .500 .1875 .0156 .2031
WNMG433EGZ l l .500 .1875 .0469 .2031
DNMG432EGU l l .500 .1875 .0313 .2031
l= USA Stocked item WNMG332EME l l .375 .1875 .0313 .150
DNMG433EGU l  .500 .1875 .0469 .2031
WNMG333EME l  .375 .1875 .0469 .150
DNMG434EGU l  .500 .1875 .0625 .2031
= World Wide Warehouse Item WNMG432EME l l .500 .1875 .0313 .2031
DNMG332EGZ l l .375 .1875 .0313 .150
WNMG433EME l l .500 .1875 .0469 .2031
DNMG431EGZ l l .500 .1875 .0156 .2031
WNMG434EME l l .500 .1875 .0625 .2031
DNMG432EGZ l l .500 .1875 .0313 .2031
WNMG431ENZ   .500 .1875 .0156 .2031
DNMG433EGZ l l .500 .1875 .0469 .2031
WNMG432ENZ l l .500 .1875 .0313 .2031
DNMG432EME l l .500 .1875 .0313 .2031
DNMG433EME l l .500 .1875 .0469 .2031
DNMG434EME l  .500 .1875 .0625 .2031
DNMG431ENZ l .500 .1875 .0156 .2031
DNMG432ENZ l l .500 .1875 .0313 .2031
DNMG433ENZ l  .500 .1875 .0469 .2031
RNMA Round Type
RNMA43 l l .500 .1875 - .2031
AC4010K \ AC4015K Availability - Positive Inserts
CCMA 80° Diamond/ 7° Relief Angle DCMA 55° Diamond/ 7° Relief Angle TCMA Triangle/ 7° Relief Angle

Insert Hole

Insert Hole

Insert Hole
Thickness

Thickness

Thickness
Inscribed

Inscribed

Inscribed
AC4010K
AC4015K

AC4010K
AC4015K

AC4010K
AC4015K
Diameter

Diameter

Diameter
Sumitomo Sumitomo Sumitomo

Radius

Radius

Radius
Circle

Circle

Circle
Nose

Nose

Nose
Catalog Catalog Catalog
Number Number Number

CCMA21.51 l .250 .094 .0156 .110 DCMA21.51   .250 .094 .0156 .110 TCMA21.51  l .250 .094 .0156 .110
CCMA32.51 l l .375 .156 .0156 .1732 DCMA21.52   .250 .094 .0313 .110 TCMA21.52   .250 .094 .0313 .110
CCMA32.52 l l .375 .156 .0313 .1732 DCMA32.51 l  .375 .156 .0156 .1732 TCMA32.51 l  .375 .156 .0156 .1693
CCMT 80° Diamond/ 7° Relief Angle DCMA32.52  l .375 .156 .0313 .1732 TCMA32.52  l .375 .156 .0313 .1693
CCMT32.51EMU l  .375 .156 .0156 .1732 DCMT 55° Diamond/ 7° Relief Angle TCMT Triangle/ 7° Relief Angle
CCMT32.52EMU l l .375 .156 .0313 .1732 DCMT32.51EMU l l .375 .156 .0156 .1732 TCMT21.51ESU l l .250 .094 .0156 .110
CCMT21.51ESU l l .250 .094 .0156 .110 DCMT32.52EMU  l .375 .156 .0313 .1732 TCMT21.52ESU l l .250 .094 .0313 .110
CCMT21.52ESU l l .250 .094 .0313 .110 DCMT21.51ESU l l .250 .094 .0156 .110 TCMT32.51ESU l l .375 .156 .0156 .1693
CCMT32.51ESU l l .375 .156 .0156 .1732 DCMT21.52ESU l l .250 .094 .0313 .110 TCMT32.52ESU l l .375 .156 .0313 .1693
CCMT32.52ESU l l .375 .156 .0313 .1732 DCMT32.51ESU l l .375 .156 .0156 .1732 TPMN Triangle/ 11° Relief Angle
CCMT431ESU l l .500 .1875.0156 .2165 DCMT32.52ESU l l .375 .156 .0313 .1732 TPMN221   .250 .125 .0156
CCMT432ESU l l .500 .1875.0313 .2165 RCMX Round Type/ 7° Relief Angle TPMN222   .250 .125 .0313
CCMT32.51ELUW  l .375 .156 .0156 .1732 RCMX100300 l l .394 .125 .1417 TPMN321   .375 .125 .0156 -
CCMT32.52ELUW l l .375 .156 .0313 .1732 RCMX120400 l l .472 .1875 - .1654 TPMN322   .375 .125 .0313
CPMA 80° Diamond/11° Relief Angle RCMX160600 l l .630 .250 .2047 TPMN332   .375 .1875 .0313
CPMA321   .375 .125 .0156 .1732 SCMT 90° Square/ 7° Relief Angle TPMT Triangle/ 11° Relief Angle
CPMA322   .375 .125 .0313 .1732
SCMT32.52EMU   .375 .156 .0313 .1732 TPMT221EMU   .250 .125 .0156 .130
CPMT 80° Diamond/11° Relief Angle SCMT432EMU l l .500 .1875.0313 .2165 TPMT222EMU   .250 .125 .0313 .130
CPMT2.51.51EMU   .3125 .094 .0156 .134 SPMN 90° Square/ 11° Relief Angle TPMT331EMU   .375 .1875 .0156 .1693
CPMT321EMU   .375 .125 .0156 .1732
TPMT332EMU   .375 .1875 .0313 .1693
SPMN321 l  .375 .125 .0156
CPMT322EMU   .375 .125 .0313 .1732
SPMN322   .375 .125 .0313 VBMA 35° Diamond/ 5° Relief Angle
-
l= USA Stocked item = World Wide Warehouse Item SPMN421 l  .500 .125 .0156
SPMN422  l .500 .125 .0313 VBMA331   .375 .1875 .0156 .1732
VBMA332   .375 .1875 .0313 .1732

Sumitomo Electric Carbide, Inc. Sumitomo Electric Carbide, Inc. Sumitomo Carbide Canada, Inc.
- Tool Engineering Center Headquarters 150 Research Lane, Unit #210
1001 Business Center Drive Guelph, Ontario N1G 4T2
5637 S. Westridge Drive Canada
Mount Prospect, IL  60056-2181
New Berlin, WI 53151 P.O. Box 545, Mt. Prospect, IL 60056-0545 Phone: (519) 265-6050
Phone: (800) 950-5202 Phone: (800) 950-5202 Phone: (844) 211-6050
Phone: (847) 635-0044
Fax: (847) 635-7866

Indiana Branch Detroit Branch

595 S. Emerson Avenue
Suite 100 14496 Sheldon Road #230
Greenwood, IN 46143 Plymouth, MI 48170
Phone: (800) 239-5177
Phone: (317) 859-1601 Phone: (734) 451-0200
Fax: (734) 451-5338

Torrance Branch Huntsville Branch

21241 South Western Avenue
6700 Odyssey Drive
Suite 120
Suite 211
Torrance, CA 90501
Huntsville, AL 35806
Phone: (800) 950-5202
Phone: (256) 971-1203
Fax: (310) 782-0211
Fax: (256) 971-1205

CAT.AC4000KBROCHURE.8/17