Speeds and Feeds for Carbide Endmills

General Information Recommended Speeds & Feeds

Metal Removal Solid Carbide End Mills Suggested Speeds & Feeds for General Purpose Carbide End Mills These recommendations are for profiling operations; reduce speeds 20% for slotting operations. Material Hardness Preferred Coating Alternate Coating Surface Feet Per Minute (SFM) Brinell HRc Speed Range Uncoated TiN Coated TiCN Coated TiAlN Coated Low and Plain Carbon, Alloy and Tool Steels <220 HB <19 TiCN TiN Low High 270 360 300 430 320 500 — — Plain Carbon, Alloy and Tool Steels 225-286 20-30 TiCN TiAlN or TiN Low High 180 270 200 320 220 380 250 430 Plain Carbon, Alloy and Tool Steels 294-371 31-40 TiCN TiAlN or TiN Low High 150 200 170 240 180 280 210 320 Ferritic, Martensitic 400, 500, and PH Stainless Steels 135-330 <35 TiAlN TiCN or TiN Low High 160 270 180 320 190 380 220 430 Austenitic Stainless Steels 200 and 300 Series 135-275 <28 TiAlN TiCN or TiN Low High 180 275 200 330 220 390 250 440 Ductile and Malleable Cast Irons 120-320 <35 TiAlN TiCN or TiN Low High 160 270 180 320 190 380 220 430 Cast Iron (Gray) 120-220 <18 TiAlN TiCN or TiN Low High 315 450 350 540 380 630 440 720 Cast Iron (Gray) 220-320 19-34 TiAlN TiCN or Tin Low High 225 315 250 380 270 440 320 500 Low-Silicon Aluminum and Other Non-Ferrous Alloys 50-150 — TiCN TiN Low High 720 900 790 1080 860 1260 — — High-Silicon Aluminum — — TiCN TiN Low High 540 720 590 860 650 1010 — — Cobalt-Based High-Temperature Alloys 150-425 <45 TiAlN TiCN Low High 30 45 — — 40 60 40 70 Nickel-Based High-Temperature Alloys 140-300 <32 TiAlN TiCN or TiN Low High 45 90 50 110 50 130 60 140 Nickel-Based High-Temperature Alloys 300-475 32-50 TiAlN TiCN Low High 40 70 — — 50 100 60 110 Titanium, Pure — — None None Low High 180 270 — — — — — — Titanium, Alloyed 300-440 32-43 TiAlN TiCN Low High 90 135 — — 110 190 130 220 These recommendations are for profiling operations; reduce chip load per tooth 20% for slotting operations. Material Hardness Preferred Coating Alternate Coating Chip Load Per Tooth Brinell HRc 1/16" 1/8" 3/16" 1/4" 5/16" 3/8" 1/2" 5/8" 3/4" 1" Low and Plain Carbon, Alloy and Tool Steels <220 HB <19 TiCN TiN .0004 .0006 .0010 .0015 .0020 .0025 .0030 .0035 .0040 .0045 Plain Carbon, Alloy and Tool Steels 225-286 20-30 TiCN TiAlN or TiN .0004 .0006 .0010 .0015 .0020 .0025 .0030 .0035 .0040 .0045 Plain Carbon, Alloy and Tool Steels 294-371 31-40 TiCN TiAlN or TiN .0003 .0004 .0007 .0011 .0014 .0018 .0021 .0025 .0028 .0032 Ferritic, Martensitic 400, 500, and PH Stainless Steels 135-330 <35 TiAlN TiCN or TiN .0002 .0004 .0006 .0010 .0015 .0020 .0025 .0030 .0035 .0040 Austenitic Stainless Steels 200 and 300 Series 135-275 <28 TiAlN TiCN or TiN .0004 .0006 .0008 .0015 .0020 .0025 .0030 .0035 .0040 .0045 Ductile and Malleable Cast Irons 120-320 <35 TiAlN TiCN or TiN .0008 .0012 .0020 .0030 .0040 .0050 .0060 .0070 .0080 .0090 Cast Iron (Gray) 120-220 <18 TiAlN TiCN or TiN .0005 .0007 .0012 .0018 .0024 .0030 .0036 .0042 .0048 .0055 Cast Iron (Gray) 220-320 19-34 TiAlN TiCN or Tin .0003 .0004 .0007 .0011 .0014 .0018 .0021 .0025 .0028 .0032 Low-Silicon Aluminum and Other Non-Ferrous Alloys 50-150 — TiCN TiN .0002 .0004 .0006 .0009 .0012 .0015 .0018 .0021 .0024 .0027 High-Silicon Aluminum — — TiCN TiN .0002 .0004 .0006 .0009 .0012 .0015 .0018 .0021 .0024 .0027 Cobalt-Based High-Temperature Alloys 150-425 <45 TiAlN TiCN .0002 .0004 .0006 .0009 .0012 .0015 .0018 .0021 .0024 .0027 Nickel-Based High-Temperature Alloys 140-300 <32 TiAlN TiCN or TiN .0002 .0004 .0006 .0009 .0012 .0015 .0018 .0021 .0024 .0027 Nickel-Based High-Temperature Alloys 300-475 32-50 TiAlN TiCN .0002 .0004 .0006 .0009 .0012 .0015 .0018 .0021 .0024 .0027 Titanium, Pure — — None None .0006 .0010 .0016 .0024 .0032 .0040 .0048 .0056 .0064 .0072 Titanium, Alloyed 300-440 32-43 TiAlN TiCN .0006 .0010 .0016 .0024 .0032 .0040 .0048 .0056 .0064 .0072

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