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Speed & Feed Recommendations
Ap
Series Hardness Ae Ae Vc 0.008 0.016 Diameter (D1) 0.04 0.06
MK2 BRINELL (SFM) 152800 (inch)
Fractional Ae x D1 Ap x D1 0.000018 0.031
320
Profile (256-384) RPM 5.5 76400 39432 30560 20373
Fz 121763
0.5 1.5 255 Feed (IPM) 0.000016 0.000040 0.000070 0.000110 0.000140
1 (204-306) RPM
C ARBON STEELS Fz 3.9 6.1 5.5 6.7 5.7
1018, 1040, 1080, 1090, Feed (IPM) 112213
P 10L50, 1140, 1212, 12L15, 175 RPM 0.000014 60881 31423 24353 16235
Fz
1525, 1536 Slot Feed (IPM) 3.1
RPM 90725
1 Fz 0.000012 0.000030 0.000060 0.000090 0.000130
Feed (IPM)
RPM 2.2 3.7 3.8 4.4 4.2
Fz 105050
Profile 235 Feed (IPM) 0.000014 56106 28958 22443 14962
RPM
0.5 1.5 (188-282) Fz 2.9 0.000030 0.000050 0.000080 0.000110
Feed (IPM) 83563
ALLOY STEELS RPM 0.000012 3.4 2.9 3.6 3.3
P 4140, 4150, 4320, 5120, 275 Fz
5150, 8630, 86L20, 50100 190 Feed (IPM) 2.0 45363 23413 18145 12097
Slot RPM 112213
1 1 Fz 0.000018 0.000020 0.000050 0.000070 0.000090
(152-228) Feed (IPM)
RPM 4.0 1.8 2.3 2.5 2.2
Fz 90725
Profile 220 Feed (IPM) 0.000016 52525 27110 21010 14007
RPM
0.5 1.5 (176-264) Fz 2.9 0.000030 0.000050 0.000080 0.000110
Feed (IPM) 124150
TOOL STEELS 250 RPM 0.000014 3.2 2.7 3.4 3.1
P A2, D2, H13, L2, M2, Fz
Slot 175 Feed (IPM) 3.5 41781 21565 16713 11142
P20, S7, T15, W2 1 RPM 100275
Fz 0.000012
1 (140-210) Feed (IPM) 0.000020 0.000050 0.000070 0.000090
2.4
85950 1.7 2.2 2.3 2.0
0.000011
Profile 235 56106 28958 22443 14962
1.9
0.5 1.5 (188-282) 69238 0.000040 0.000070 0.000110 0.000140
0.000010
K CAST IRONS 220 4.5 4.1 4.9 4.2
Gray, Malleable, Ductile 1.4
190 45363 23413 18145 12097
Slot 1
1 0.000030 0.000060 0.000090 0.000130
(152-228)
2.7 2.8 3.3 3.1
Profile 260 62075 32039 24830 16553
0.5 1.5 (208-312) 0.000030 0.000050 0.000080 0.000110
STAINLESS STEELS 3.7 3.2 4.0 3.6
M (Free MachiNIng) 275
303, 416, 420F, 430F 440F 210 50138 25877 20055 13370
Slot
1 1 0.000020 0.000050 0.000070 0.000090
(168-252)
2.0 2.6 2.8 2.4
Profile 180 42975 22181 17190 11460
0.5 1.5 (144-216) 0.000020 0.000040 0.000060 0.000090
STAINLESS STEELS 275 1.7 1.8 2.1 2.1
M (Difficult)
Slot 145 34619 17868 13848 9232
304, 304L,316, 316L 1
1 (116-174) 0.000020 0.000040 0.000060 0.000080
1.4 1.4 1.7 1.5
continued on next page
150 END MILLS sgs@sgs-tool.ru END MILLS
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