Speeds & Feeds

Solid Carbide High Performance End Mills



Materials
Soft Grades		 Speed
S.F.M. Under
32 HRC		 Materials
Hard Grades		 Speed
S.F.M. Over
32 HRC		 Feed (Inch/Tooth)
End Mill Diameter
1/8" 3/16" 1/4" 3/8" 1/2" 5/8" 3/4" 1"
Recommendation for
Coated Tools
NONFERROUS MATERIALS
Aluminum + Aluminum Alloys
2024-T4/T6, 2014,
6061-T6/T651, 7075-T6		 800-2000 440, 356, 380,
C61300		 500-1000 .001 .002 .002 .003 .004 .005 .006 .007 TiCN add 40% on SFM
Copper
Yellow Brass, High Lead Brass,
Red Brass 		800-1500 Navel Brass,
High Silicon Bronze,
A-17, C-17200 		800-1000 .001 .001 .002 .0025 .003 .004 .004 .005 TiCN add 40% on SFM
TIAIN add 60% on SFM
Copper Alloys
Alum/Bronze, Low Silicon Bronze		 800-1000 Nickel Silver,
Beryllium Copper,
Oxygen-Free Copper		 700-1000 .001 .001 .002 .0025 .003 .004 .004 .005
Magnesium
De-CAt, Extruded		 1000 min Nickel Silver,
Beryllium Copper,
Oxygen-Free Copper		 700-1000 .001 .002 .002 .003 .004 .006 .008 .009
Plastics, Acrylics, Phenolics
Polysulfone		 200-600 Polycarbonate 200-500 .001 .002 .003 .004 .006 .008 .010 .015
Carbon, Graphites 200-400     .004 .004 .006 .008 .010 .010 .015 .020
Materials
Soft Grades		 Speed
S.F.M. Under
32 HRC		 Materials
Hard Grades		 Speed
S.F.M. Over
32 HRC		 Feed (Inch/Tooth)
End Mill Diameter
1/8" 3/16" 1/4" 3/8" 1/2" 5/8" 3/4" 1"
Recommendation for
Coated Tools
STAINLESS STEEL
Precipitation
13/8, 15/5,
AM-350/355		 80-250 17/4, 17/7, AF-71,
Custom 450/636,
15/7 Mo, 21-6-9		 90-150 .0005 .0005  .001 .001 .002 .002 .004 .006 TiCN add 40% on SFM
TIAIN add 60%-100% on SFM
Austenic
200 Series, 302,
303, 304L, 316L		 100-350 304, 310, 314,
316, 321, 330,
347, 348, 21-6-9		 100-150 .0001 .0002 .0005 .001 .0015 .002 .003 .004
Martensitic
403, 410, 416		 100-250 420, 430F, 440C, 446 100-175 .0001 .0002 .0005 .0005 .001 .001 .003 .004
Materials
Soft Grades		 Speed
S.F.M. Under
32 HRC		 Materials
Hard Grades		 Speed
S.F.M. Over
32 HRC		 Feed (Inch/Tooth)
End Mill Diameter
1/8" 3/16" 1/4" 3/8" 1/2" 5/8" 3/4" 1"
Recommendation for
Coated Tools
HIGH TEMP ALLOYS
Cobalt Base
Stellite, HS-21,
HAYNES25/188,
x-40, L-605		 60-100 Air-Resist 13/213/215,
Haynes 21/36,
NASA CO-W-RE		 40-80 .0004 .0005  .001 .001 .001 .001 .0015 .002 TIAIN Coating is required
add 50%-80% in SFM
Nickel Base
INCONEL 600/625,
Nickel 200-270,
Monel 400-405		   Hastalloy-C/B/X,
INCONEL 718/X/W,
Waspalloy, Rene 41-95		 50-90 .0005 .0005 .001 .001 .002 .0025 .003 .004
Iron Base
Incoly 600-802,
Multimet N-155,
Timkin 16-25-6		 80-130 A-286, Haynes 556,
Discoly, V57		 60-120 .0005 .0005 .001 .0015 .002 .0025 .003 .004
Materials
Soft Grades		 Speed
S.F.M. Under
32 HRC		 Materials
Hard Grades		 Speed
S.F.M. Over
32 HRC		 Feed (Inch/Tooth)
End Mill Diameter
1/8" 3/16" 1/4" 3/8" 1/2" 5/8" 3/4" 1"
Recommendation for
Coated Tools
STEELS
High Steel Strength
4340, 6150, 52100,
H-11, H-13		 50-250 4340M, EDT-150,
HP9-430, 300M,
D6-Ac, 11-10 		80-180 .0005 .0005 .001 .001 .001 .0015 .002 .004 On Steels >45 HRC on Roughing use Coolant
on Finishing Run Dry
TiCN add 40% on SFM
TIAIN add 60%-100% n SFM
High Alloy Steels
A-2/6/10, P-3/10,
01, 02, 06		 100-300 Hy-Tugg,
Stressproof,
AmorPlate		 80-180 .0005 .0005 .001 .001 .001 .0015 .002 .004 TiCN add 40% on SFM
Medium Alloy Steels
200, 250, 300		 150-350 Hy-Tugg,
Stressproof,
AmorPlate		 80-180 .0005 .0005 .001 .002 .0025 .0035 .004 .005
Low Alloy Steels Maraging
10XX, 11XX, 13XX		 100-400 23XX, 31XX 100-200 .0005 .001 .0015 .002 .003 .004 .005 .006
Materials
Soft Grades		 Speed
S.F.M. Under
32 HRC		 Materials
Hard Grades		 Speed
S.F.M. Over
32 HRC		 Feed (Inch/Tooth)
End Mill Diameter
1/8" 3/16" 1/4" 3/8" 1/2" 5/8" 3/4" 1"
Recommendation for
Coated Tools
CAST IRON
Ductile Cast Iron 100-400 Ductile Cast Iron 80-140 .0005 .001 .0015 .002 .002 .003 .004 .005
Always use coolant
TiCN add 40% on SFM
TIAIN add 60%-100% n SFM
Gray Cast Iron 100-400 Malleable, Chilled 90-160 .0005 .001 .002 .003 .004 .005 .006 .008
TiCN add 40% on SFM
TIAIN add 60%-100% n SFM
Materials
Soft Grades		 Speed
S.F.M. Under
32 HRC		 Materials
Hard Grades		 Speed
S.F.M. Over
32 HRC		 Feed Inch/Tooth)
End Mill Diameter
1/8" 3/16" 1/4" 3/8" 1/2" 5/8" 3/4" 1"
Recommendation for
Coated Tools
TITANIUM
Titanium Alloys
Commercially, Pure,
6AL-4V, Astm 1/2/3,
6 AL-25N-4Zr-2Mo-Si 		50-250 5AL-2.5Sn-Eli
8Al-1 Mo-1V		 90-160 .0005 .0005 .0005 .001 .001 .0015 .002 .004
Always use coolant
TiCN add 40% on SFM
TIAIN add 60%-100% n SFM

Slotting Cutting Depth
Recommendations and Adjustments

Axial Depth of Cut = AD
For Tool Diameters 1/8" and Under: AD = Dia. of Tool X 0.25 to 0.05.
For Diameters above 1/8" AD = Dia. X .05 to 1.5

SFM and Feed
For AD between 0.25 to 0.5 of Tool Dia. SFM = 0.8 Lowest Range Value. Feed at Suggested Value.
For AD equal and above Tool Dia.
SFM = 0.8 X Highest Speed Range. Feed should be 0.5 X Suggested Value.

Profiling Cutting Depth
Recommendations and Adjustments

Axial Depth of Cut = AD
Axial Depth of Cut = 1.5 X Tool Dia.

SFM and Feed
For Radial Depth of Cut use 0.25 X Tool Dia. Use Higher SFM Range.
For Long and Extra Carbide Reduce Feed by 50%.