Grade 8625

Grade 8625
The most innovative
and reliable solution
for stainless steel turning
NEW CVD GRADE FOR M25 APPLICATIONS

2
FIRST CHOICE FOR STAINLESS STEEL TURNING
M25 applications are the most important stainless steel turning area.
It means different parts, sizes, materials and machining conditions.
It is both a roughing and semi-finishing area, very critical for all market segments.
Safety has developped the new 8625 grade to meet this industrial demand
with the higher productivity and reliability. A good balance of toughness
and wear resistance makes this new grade matching high speed machining
whatever the conditions.
8625 is based on both a new coating technology and a new substrate
recently developped for this area.
Our 8625 grade will be the RIGHT SOLUTION for your further success!
FEATURES AND ADVANTAGES
❯ RELIABLE SUBSTRATE:
The substrate has increased resistance to plastic deformation at high temperatures and whatever
the conditions: semi-finishing, roughing, continuous and intermittent cutting.
❯ OPTIMIZED CVD COATING:
New multilayers CVD coating to improve notch wear, flaking and build-up edge resistance which are
the main wear mechanism in stainless steel turning.
❯ COMPLEMENTARY AREA:
8625 is a second choice to machine low carbon steel, low alloyed steel and exotic alloys
(Nickel and Cobalt base).

Customer Service - Tel.: +33(0)1.46.10.54.00 Fax: +33(0)1.46.10.54.54
APPLICATION AREAS
ISO group
Wear resistance
M
Toughness
M01
M05
M10
M15
M20
M25
M30
M35
M40
9605
GRADE 8625
PVD
8620
Coated grades
Carbide
CVD
8515
8625
INDUSTRIES
AUTOMOTIVE
DIE & MOLD
OIL/GAS
AEROSPACE
POWER GENERATION
OFF HIGHWAY
MEDICAL
MARINE
NEW
8535
3

4
GRADE 8625
GRADE DESCRIPTION
Grade Description Performance
8625 MTCVD coated carbide
APPLICATION AREA
Multilayers TiCN/AI203/TiN
High cobalt substrate
Thin coating
High resistant build-up edge
MACHINING CONDITIONS
General machining grade
Enhanced plastic deformation
resistance
High toughness
Chipping resistance
Enhanced build-up resistance
Notch wear resistance
Flaking resistance
ISO
material
M25
P30
S15
Applications
Stainless steels: ferritic, austenitic, PH & duplex
General machining & roughing
Continuous & interrupted cuts
Steels: low carbon, alloy
General machining ; interrupted cuts
High temperature alloys
Semi-finishing ; continuous cuts
Materials:
1st choice for ferritic, austenitic, martensitic stainless steel, duplex, super-duplex, precipitation hardening stainless steel
(as 15-5Ph, 17-4Ph)
Complementary grade for low carbon steel, low alloy steel, high temp alloys (Nickel, cobalt base)
Applications:
Semi-finishing to roughing
Longitudinal turning, facing, profiling
Continuous and intermittent cutting
Continuous cutting Run-out Light Medium High
8515
8620
8625
NEW
8535
Customer Service - Tel.: +33(0)1.46.10.54.00 Fax: +33(0)1.46.10.54.54

COATING
Customer Service - Tel.: +33(0)1.46.10.54.00 Fax: +33(0)1.46.10.54.54
GRADE 8625
New multilayers CVD coating:
Optimized edge preparation
to provide accurate control of
cutting edge
Special post treatment of the TiN
layer to have an ultra smooth surface
reducing adhesion and build-up edge
Yellow coating for easy wear detection
Ultra smooth TiN for easy wear detection and increasing adhesion resistance
TiN/Al2O3 multilayers recently developped for stainless steel machining
to increase flaking, build-up edge and temperature resistance
TiCN for abrasive wear resistance
New tough tungsten carbide substrate:
High cobalt substrate with increased plastic deformation
resistance at high speed
5

6
GRADE 8625
CUTTING DATA
MTCVD
coated
P
Steels
8625
M
Stainless steels
MTCVD
coated
8625
S
High temp alloys
MTCVD
coated
8625
Operation
ap
Depth of
cut
mm
f
Feed
mm/rev
Free machining & low
carbon steels
vc
m/min
Geo.
1st 2nd
Cutting speed / Chipbreaker designation
Medium carbon & high
carbon steels
vc
m/min
Geo.
1st 2nd
Alloy steels & easy to
machine tool steels
vc
m/min
Geo.
1st 2nd
Tool steels & die steels
vc
m/min
R 2.0-7.6 0.25-0.64 137 M7 M5 107 M7 M5 - - - -
GP 1.0-3.8 0.2-0.4 213 M5 M4 152 M5 M4 - - - -
F - - - - - - - - - -
Operation
ap
Depth of
cut
mm
f
Feed
mm/rev
Cutting speed / Chipbreaker designation
Ferritic & martensitic Austenitic PH & duplex
vc
m/min
Geo.
1st 2nd
vc
m/min
Geo.
1st 2nd
vc
m/min
Geo.
1st 2nd
Geo.
1st 2nd
R 2.0-6.4 0.2-0.64 61-168 M7 M5 61-137 M7 M5 61-122 M7 M5
GP 1.0-3.8 0.15-0.38 76-198 M5 M4 76-183 M5 M4 61-137 M5 M4
F 0.25-1.3 0.13-0.25 91-229 M4 F5 76-213 M4 F5 61-152 M4 F5
Operation
ap
Depth of
cut
mm
f
Feed
mm/rev
Iron base alloys
A-286 discalloy, incoloy
vc
m/min
Geo.
1st 2nd
Cutting speed / Chipbreaker designation
Nickel base alloys
monel, hastelloy,
inconel, waspaloy
vc
m/min
Geo.
1st 2nd
Cobalt base alloys
haynes stellite
vc
m/min
Geo.
1st 2nd
Titanium alloys
6Al-4V
vc
m/min
R - - - - - - - - - -
GP 1.0-3.8 0.15-0.3 30-61 M5 M4 23-46 M5 M4 23-38 M5 M4 - -
F 0.25-1.3 0.13-0.25 30-76 M4 F5 23-53 M4 F5 23-46 M4 F5 - -
R = Roughing Bold print indicates first choice
GP = General purpose
F = Finishing
FT = Flat top
Negative top form geometry
Cutting parameters provided for positive inserts are based on CCMT 12 04 08
Cutting parameters provided for negative inserts are based on CNMG 12 04 12
You may increase/decrease cutting parameters to optimize your application depending on many factors including: work piece type and hardness, surface finish
required, insert size, shape and nose radius, lead angle, chipbreaker, cycle time required, desired tool life, desired failure mode and reason for indexing.
Geo.
1st 2nd
Customer Service - Tel.: +33(0)1.46.10.54.00 Fax: +33(0)1.46.10.54.54

CUTTING DATA
MTCVD
coated
P
Steels
8625
M
Stainless steels
MTCVD
coated
8625
S
High temp alloys
MTCVD
coated
8625
Operation
ap
Depth of
cut
mm
f
Feed
mm/rev
Customer Service - Tel.: +33(0)1.46.10.54.00 Fax: +33(0)1.46.10.54.54
Free machining & low
carbon steels
vc
m/min
Geo.
1st 2nd
GRADE 8625
Cutting speed / Chipbreaker designation
Medium carbon & high
carbon steels
vc
m/min
Geo.
1st 2nd
Alloy steels & easy to
machine tool steels
vc
m/min
Geo.
1st 2nd
Tool steels & die
steels
vc
m/min
R 0.8-3.1 0.13-0.5 183 PM5 168 PM5 137 PM5 - -
GP 0.8-3.1 0.13-0.5 213 PM4 152 PM4 122 PM4 - -
F - - - - - - - - - -
Operation
ap
Depth of
cut
mm
f
Feed
mm/rev
Positive top form geometry
Cutting speed / Chipbreaker designation
Ferritic & martensitic Austenitic PH & duplex
vc
m/min
Geo.
1st 2nd
vc
m/min
Geo.
1st 2nd
vc
m/min
R - - - - - - - -
Geo.
1st 2nd
Geo.
1st 2nd
GP 0.25-2.5 0.13-0.3 76-183 PM5 76-183 PM5 61-152 PM5
F 0.25-2.0 0.13-0.25 91-244 PM4 76-213 PM4 61-183 PM4
Operation
ap
Depth of
cut
mm
f
Feed
mm/rev
Iron base alloys
A-286 discalloy, incoloy
vc
m/min
Geo.
1st 2nd
Cutting speed / Chipbreaker designation
Nickel base alloys
monel, hastelloy,
inconel, waspaloy
vc
m/min
Geo.
1st 2nd
Cobalt base alloys
haynes stellite
vc
m/min
Geo.
1st 2nd
Titanium alloys
6Al-4V
vc
m/min
R - - - - - - - - - -
GP 0.25-2.5 0.13-0.3 30-61 PM5 23-46 PM5 23-38 PM5 - -
F - - - - - - - - - -
R = Roughing Bold print indicates first choice
GP = General purpose
F = Finishing
FT = Flat top
Cutting parameters provided for positive inserts are based on CCMT 12 04 08
Cutting parameters provided for negative inserts are based on CNMG 12 04 12
You may increase/decrease cutting parameters to optimize your application depending on many factors including: work piece type and hardness, surface finish
required, insert size, shape and nose radius, lead angle, chipbreaker, cycle time required, desired tool life, desired failure mode and reason for indexing.
Geo.
1st 2nd
7

8
GRADE 8625
GEOMETRY APPLICATION
Negative geometry Chipbreaker profile Applications Description
F5
M4
M5
M7
5G
Double
sided
1.0
15°
• Finishing to medium machining
• High positive cutting angle
• Low cutting forces - ideal for
soft materials, work hardening
materials
15°
0.9
1.9
• Multi-purpose geometry for
machining of sticky materials
0.8
0.23
7°
13°
• General machining
• Wide range of materials
• Positive cutting angle
• Medium feed rates and medium
depths of cut
1.1
0.2
15°
• Medium to light roughing
• Smooth chipbreaker for soft
materials
• Neutral land for a good resistance
1.23
3.1
r 1.9
• Oriented (right or left)
• Good support
• Wide chip roller
• Soft cutting
15°
P
M
S
M
S
P
M
K
P
M
K
Depth of cut (mm)
10
9
8
7
6
5
r = 0.8
4
3
2
1 r = 0.4
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Depth of cut (mm)
10
9
8
7
6
5
r = 1.2
4
3
r = 0.8
2
1
Feed (mm/rev)
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Depth of cut (mm)
10
9
8
7
6
r = 1.2
5
r = 0.8
4
r = 0.4
3
2
1
Feed (mm/rev)
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Depth of cut (mm)
10
9
8
7
6
r = 1.6
r = 1.2
5
r = 0.8
4
3
2 r = 0.4
1
Feed (mm/rev)
Continuous
cutting
Run-out Light Medium High
Customer Service - Tel.: +33(0)1.46.10.54.00 Fax: +33(0)1.46.10.54.54
F5
Main application area:
Depth of cut: ap = 0.3 - 5.0 mm
Feed: f = 0.05 - 0.4 mm/rev
Continuous
cutting
Run-out Light Medium High
M4
Main application area:
Depth of cut: ap = 1 - 6 mm
Feed: f = 0.15 - 0.5 mm/rev
Continuous
cutting
Run-out Light Medium High
M5
Main application area:
Depth of cut: ap = 0.5 - 6.0 mm
Feed: f = 0.13 - 0.56 mm/rev
Continuous
cutting
Run-out Light Medium High
S Main application area:
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Depth of cut: ap = 0.8 - 6.5 mm
Feed (mm/rev) Feed: f = 0.15 - 0.8 mm/rev
P
M
Depth of cut (mm)
10
9
8
7
6
5
4
r = 0.8
3 r = 0.4
2
1
Continuous
cutting
M7
Run-out Light Medium High
S Main application area:
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Depth of cut: ap = 1.0 - 5.0 mm
Feed (mm/rev) Feed: f = 0.2 - 0.5 mm/rev
5G

GEOMETRY APPLICATION
TEST RESULTS
Customer Service - Tel.: +33(0)1.46.10.54.00 Fax: +33(0)1.46.10.54.54
GRADE 8625
Positive geometry Chipbreaker profile Applications Description
PM4
PM5
0.75
0.10
18°
• Semi-finishing to medium
machining
• Low to medium feed rates
• Medium depths of cut
• Good chip control
5°
1
0.25
20°
• Semi-finishing to light roughing
• Medium feed rates
• Medium depths of cut
P
M
K
P
5
4
3
2
1
Depth of cut (mm)
r = 0.4
r = 0.8
0 0.1 0.2 0.3 0.4 0.5
5
4
3
2
1
Depth of cut (mm)
r = 0.4
r = 0.8
Feed (mm/rev)
0 0.1 0.2 0.3 0.4 0.5
Feed (mm/rev)
Material: AISI 304 Material: AISI 316
SAFETY insert CNMG 12 04 08 M4
Speed (m/min) 110
Feed (mm/rev) 0.22
DOC (mm) 2
Application Roughing
Condition Intermittent cutting
Coolant Emulsion
TOOL LIFE
8625 8 parts
Competitor 4 parts
IMPROVEMENT 100%
M
K
Continuous
cutting
Run-out Light Medium High
PM4
Main application area:
Depth of cut: ap = 0.6 - 4.0 mm
Feed: f = 0.1 - 0.36 mm/rev
Continuous
cutting
Run-out Light Medium High
PM5
Main application area:
Depth of cut: ap = 0.6 - 4.0 mm
Feed: f = 0.12 - 0.4 mm/rev
SAFETY insert CNMG 12 04 08 M5
Speed (m/min) 90
Feed (mm/rev) 0.15
DOC (mm) 1
Application Semi-finishing
Condition Intermittent cutting
Coolant Emulsion
TOOL LIFE
8625 126 parts
Competitor 70 parts
IMPROVEMENT 80%
9

10
GRADE 8625
PRODUCT OFFERING
CCMT
PM4
CCMT
PM5
CNMG
F5
CNMG
M4
CNMG
M5
CNMG
M7
DCMT
PM4
DNMG
5G
Chipbreaker Reference
✓: Standard stocked
Dimensions
(mm)
CVD
grade
I.C. Thickness Radius 8625
CCMT 09T308-PM4 09 T3 08 ✓
CCMT 120408-PM4 12 04 08 ✓
CCMT 060202-PM5 06 02 02 ✓
CCMT 060204-PM5 06 02 04 ✓
CCMT 080304-PM5 08 03 04 ✓
CCMT 080308-PM5 08 03 08 ✓
CCMT 09T304-PM5 09 T3 04 ✓
CCMT 09T308-PM5 09 T3 08 ✓
CCMT 120408-PM5 12 04 08 ✓
CCMT 120412-PM5 12 04 12 ✓
CNMG 120404-F5 12 04 04 ✓
CNMG 120408-F5 12 04 08 ✓
CNMG 120404-M4 12 04 04 ✓
CNMG 120408-M4 12 04 08 ✓
CNMG 120412-M4 12 04 12 ✓
CNMG 160612-M4 16 06 12 ✓
CNMG 190612-M4 19 06 12 ✓
CNMG 120404-M5 12 04 04 ✓
CNMG 120408-M5 12 04 08 ✓
CNMG 120412-M5 12 04 12 ✓
CNMG 120404-M7 12 04 04 ✓
CNMG 120408-M7 12 04 08 ✓
CNMG 120412-M7 12 04 12 ✓
CNMG 160608-M7 16 06 08 ✓
CNMG 160612-M7 16 06 12 ✓
CNMG 190612-M7 19 06 12 ✓
CNMG 190616-M7 19 06 16 ✓
DCMT 070204-PM4 07 02 04 ✓
DCMT 11T304-PM4 11 T3 04 ✓
DCMT 11T308-PM4 11 T3 08 ✓
DCMT 11T312-PM4 11 T3 12 ✓
DNMG 150604L-5G 15 06 04 ✓
DNMG 150604R-5G 15 06 04 ✓
DNMG 150608L-5G 15 06 08 ✓
DNMG 150608R-5G 15 06 08 ✓
DNMG
F5
DNMG
M4
DNMG
M5
ECMT
PM4
KNUX
22
KNUX
32
SCMT
PM4
SNMG
F5
SNMG
M4
Chipbreaker Reference
Dimensions
(mm)
CVD
grade
I.C. Thickness Radius 8625
DNMG 150604-F5 15 06 04 ✓
DNMG 150608-F5 15 06 08 ✓
DNMG 150608-M4 15 06 08 ✓
DNMG 150612-M4 15 06 12 ✓
DNMG 110404-M5 11 04 04 ✓
DNMG 110408-M5 11 04 08 ✓
DNMG 150604-M5 15 06 04 ✓
DNMG 150608-M5 15 06 08 ✓
DNMG 150612-M5 15 06 12 ✓
ECMT 060204-PM4 06 02 04 ✓
ECMT 080304-PM4 08 03 04 ✓
ECMT 080308-PM4 08 03 08 ✓
KNUX 160405L-22 16 04 05 ✓
KNUX 160405R-22 16 04 05 ✓
KNUX 160405L-32 16 04 05 ✓
KNUX 160405R-32 16 04 05 ✓
SCMT 09T304-PM4 09 T3 04 ✓
SCMT 09T308-PM4 09 T3 08 ✓
SNMG 120408-F5 12 04 08 ✓
SNMG 120408-M4 12 04 08 ✓
SNMG 120412-M4 12 04 12 ✓
Customer Service - Tel.: +33(0)1.46.10.54.00 Fax: +33(0)1.46.10.54.54

PRODUCT OFFERING
SNMG
M5
SNMG
M7
TCMT
PM4
TCMT
PM5
TNMG
F5
TNMG
M4
TNMG
M5
TNMG
M7
Chipbreaker Reference
Dimensions
(mm)
Customer Service - Tel.: +33(0)1.46.10.54.00 Fax: +33(0)1.46.10.54.54
CVD
grade
I.C. Thickness Radius 8625
SNMG 120404-M5 12 04 04 ✓
SNMG 120408-M5 12 04 08 ✓
SNMG 120412-M5 12 04 12 ✓
SNMG 090308-M7 09 03 08 ✓
SNMG 120404-M7 12 04 04 ✓
SNMG 120408-M7 12 04 08 ✓
SNMG 120412-M7 12 04 12 ✓
SNMG 190612-M7 19 06 12 ✓
SNMG 190616-M7 19 06 16 ✓
TCMT 16T308-PM4 16 T3 08 ✓
TCMT 16T304-PM5 16 T3 04 ✓
TCMT 16T308-PM5 16 T3 08 ✓
TNMG 160404-F5 16 04 04 ✓
TNMG 160408-F5 16 04 08 ✓
TNMG 160408-M4 16 04 08 ✓
TNMG 160404-M5 16 04 04 ✓
TNMG 160408-M5 16 04 08 ✓
TNMG 160412-M5 16 04 12 ✓
TNMG 160404-M7 16 04 04 ✓
TNMG 160408-M7 16 04 08 ✓
TNMG 160412-M7 16 04 12 ✓
TNMG 220404-M7 22 04 04 ✓
TNMG 220408-M7 22 04 08 ✓
TNMG 220412-M7 22 04 12 ✓
TNMG 270612-M7 27 06 12 ✓
TNMG 270616-M7 27 06 16 ✓
TNMG 270624-M7 27 06 24 ✓
VBMT
PM4
VCGT
PM5
VNMG
M5
WNMG
F5
WNMG
M4
WNMG
M5
WNMG
M7
GRADE 8625
Chipbreaker Reference
✓: Standard stocked
Dimensions
(mm)
CVD
grade
I.C. Thickness Radius 8625
VBMT 160404-PM4 16 04 04 ✓
VBMT 160408-PM4 16 04 08 ✓
VCGT 130302-PM5 13 03 02 ✓
VCGT 130304-PM5 13 03 04 ✓
VCGT 130308-PM5 13 03 08 ✓
VNMG 160404-M5 16 04 04 ✓
VNMG 160408-M5 16 04 08 ✓
WNMG 080404-F5 08 04 04 ✓
WNMG 080408-F5 08 04 08 ✓
WNMG 080408-M4 08 04 08 ✓
WNMG 080412-M4 08 04 12 ✓
WNMG 060404-M5 06 04 04 ✓
WNMG 060408-M5 06 04 08 ✓
WNMG 060412-M5 06 04 12 ✓
WNMG 080404-M5 08 04 04 ✓
WNMG 080408-M5 08 04 08 ✓
WNMG 080412-M5 08 04 12 ✓
WNMG 080408-M7 08 04 08 ✓
WNMG 080412-M7 08 04 12 ✓
11

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BROC-8625-08/11-ENG