VcDC• in
Series M105Hardness(sfm)0 .0040 .0100 .0200 .0400 .0800 .125
CARBON STEELS175 BhRPM12415049660248301241562083973
1018, 1040, 1080, 1090, 10L50,≤ n or130 (104-156)Fz0.000120.000290.00060.00120.00230.0036
1140, 1212, 12L15, 1525, 1536≤ 7 HRcFeed (ipm)14.314.314.314.314.314.3
P ALLOY STEELS≤ 275 BhnRPM18622574490372451862393115959
4140, 4150, 4320, 5120,or195 (156-234)Fz0.000100.000260.00050.00100.00210.0033
5150, 8630, 86L20, 50100≤ 28 HRcFeed (ipm)19.419.419.419.419.419.4
TOOL STEELS≤ 475 BhnRPM764003056015280764038202445
H A2, D2, H13, L2, M2,or80 (64-96)Fz0.000050.000130.00030.00050.00100.0016
P20, S7, T15, W2≤ 50 HRcFeed (ipm)4.04.04.04.04.04.0
220 BhRPM2674001069605348026740133708557
K CAST IRONS Gray, Malleable, Ductile≤ n or ≤ 19 HR280 (224-336)Fz0.000070.000160.00030.00070.00130.0020
cFeed (ipm)17.517.517.517.517.517.5
STAINLESS STEELS275 BhRPM620752483012415620831041986
(FREE MACHINING)≤ n or65 (52-78)Fz0.000090.000220.00040.00090.00170.0027
M 303, 416, 420F, 430F, 440F≤ 28 HRcFeed (ipm)5.45.45.45.45.45.4
STAINLESS STEELS325 BhRPM38200152807640382019101222
(DIFFICULT) 304, 316, 321, 13-8 PH, 15-5PH,≤ n or40 (32-48)Fz0.00010.00020.00040.00070.00140.0022
17-4 PH, CUSTOM 450≤ 35 HRcFeed (ipm)2.72.72.72.72.72.7
SUPER ALLOYS (NICKEL COBALT IRON BASE)≤ 320 BhnRPM47750191009550477523881528
, , Inconel 601, 617, 625, Incoloy 800 Ml 400 Ror 34 HR50 (40-60)Fz0.000040.000110.00020.00040.00090.0014
S , one , ene, Waspaloy≤ cFeed (ipm)2.12.12.12.12.12.1
TITANIUM ALLOYS350 BhRPM47750191009550477523881528
Pure Titanium, Ti6Al4V, Ti6Al2Sn4Zr2Mo,≤ n or HR50 (40-60)Fz0.000050.000130.00030.00050.00100.0016
Ti4Al4Mo2Sn0.5Si≤ 38 cFeed (ipm)2.52.52.52.52.52.5
RPM233975935904679523398116997487
ALUMINUM ALLOYS 2017, 2024, 356, 6061, 7075≤ 150 Bhn or245 (196-294)Fz0.000200.000490.00100.00200.00390.0062
≤ 7 HRcFeed (ipm)46.146.146.146.146.146.1
RPM17190068760343801719085955501
N COPPER ALLOYS Alum Bronze, C110, Muntz≤ 140 Bhn or180 (144-216)Fz0.000200.000490.00100.00200.00390.0062
Brass≤ 3 HRcFeed (ipm)33.933.933.933.933.933.9
RPM233975935904679523398116997487
PLASTICS Polycarbonate, PVC245 (196-294)Fz0.000200.000490.00100.00200.00390.0062
Feed (ipm)46.146.146.146.146.146.1

Note:

  • Bhn (Brinell) HRc (Rockwell C) HRb (Rockwell B)
  • rpm = Vc x 3.82 / DC
  • ipm = Fr x rpm (Fr x maximum available rpm when recommendation exceeds machine limit)
  • reduce speed and feed 30% when using uncoated drills
  • reduce speed and feed for materials harder than listed
  • refer to the KYOCERA SGS Tool Wizard® or sgsmicrotools.com for complete technical information