PYSTL 438 SERIES - SPEED & FEED GUIDE
MATERIAL AXIAL DOCRADIAL
DOC DIAMETER
Carbon St eel SFM RPM IPM CPT RPM IPM CPT RPM IPM CPT RPM IPM CPT10XX, 11XX Full Slot 1 x D 1 x D 220 6723 13 0.0005 3362 13 0.0010 2241 16 0.0018 1681 17 0.002512XX, 13XX 30% Radial 1.25 x D .3 x D 264 8068 19 0.0006 4034 19 0.0012 2689 23 0.0022 2017 24 0.0030
10% Radial 1.5 X D .1 x D 343 10488 42 0.001 5244 42 0.0020 3496 50 0.0036 2622 53 0.00505% Radial 2 X D .05 x D 378 11537 81 0.001 5769 81 0.0020 3846 97 0.0036 2884 102 0.0050
Alloy St eel40XX, 41XX, 42XX Full Slot 1 x D 1 x D 180 5501 21 0.0010 2750 16 0.00143 1834 13 0.0017 1375 13 0.0024 44XX, 48XX, 86XX 30% Radial 1.25 x D .3 x D 225 6876 31 0.0011 3438 24 0.00171 2292 19 0.0021 1719 20 0.0029
10% Radial 1.5 X D .1 x D 270 8251 63 0.0019 4126 47 0.00285 2750 38 0.0034 2063 40 0.00485% Radial 2 X D .05 x D 297 9076 64 0.001 4538 64 0.0020 3025 76 0.0036 2269 80 0.0050
Tool St eelA2 ,A3, D2, H11, H13 50% Radial 1 x D 1 x D 180 5501 10 0.0005 2750 10 0.0010 1834 13 0.0017 1375 13 0.0024M1, O-1, S-7, NAK 55 30% Radial 1.25 x D .3 x D 225 6876 16 0.0006 3438 16 0.0011 2292 19 0.0021 1719 20 0.0029
10% Radial 1.5 X D .1 x D 270 8251 31 0.0010 4126 31 0.0019 2750 38 0.0034 2063 40 0.00485% Radial 2 X D .05 x D 297 9076 64 0.001 4538 64 0.0020 3025 76 0.0036 2269 80 0.0050
Cast Iron- grayGrey, GG-10 to GG-40 Full Slot 1 x D 1 x D 100 3056 6 0.0005 1528 6 0.0009 1019 7 0.0016 764 7 0.0023
30% Radial 1.25 x D .3 x D 125 3820 8 0.0005 1910 8 0.0011 1273 10 0.0019 955 10 0.002710% Radial 1.5 X D .1 x D 163 4966 18 0.0009 2483 18 0.0018 1655 22 0.0032 1242 23 0.0045
5% Radial 2 X D .05 x D 179 5463 38 0.001 2731 38 0.0020 1821 46 0.0036 1366 48 0.0050
Cast Iron- gray malleableDuctile (Nodular) Full Slot .75 x D 1 x D 155 4737 8 0.0004 2368 8 0.0009 1579 10 0.0015 1184 10 0.0022
Malleable 30% Radial 1.25 x D .3 x D 180 5501 11 0.0005 2750 11 0.0010 1834 14 0.0019 1375 14 0.0026GGG-40, to GGG-70 10% Radial 1.5 x D .1 x D 216 6601 23 0.0009 3300 23 0.0017 2200 27 0.0031 1650 29 0.0043
5% Radial 2 X D .05 x D 238 7261 51 0.001 3631 51 0.0020 2420 61 0.0036 1815 64 0.0050
SS 3 00 & 4 00 Series303, 304, 316, 312 Full Slot .75 x D 1 x D 140 4278 7 0.0004 2139 7 0.0008 1426 8 0.0015 1070 9 0.0021420, 420F, 416, 440 30% Radial 1.25 x D .3 x D 185 5654 11 0.0005 2827 11 0.0010 1885 13 0.0018 1413 14 0.0025
10% Radial 1.5 x D .1 x D 230 7039 23 0.0008 3519 23 0.0016 2346 28 0.0029 1760 29 0.00415% Radial 2 X D .05 x D 253 7743 54 0.001 3871 54 0.0020 2581 65 0.0036 1936 68 0.0050
Precipit at ion SS15-5, 16-6, 17-4, 17-5 Full Slot 0.5 1 x D 115 3514 5 0.0004 1757 5 0.0008 1171 7 0.0014 879 7 0.0019
30% Radial 1.25 x D .3 x D 180 5501 10 0.0005 2750 10 0.0009 1834 12 0.0017 1375 13 0.002310% Radial 1.5 x D .1 x D 250 7640 24 0.0008 3820 24 0.0015 2547 28 0.0028 1910 30 0.0039
5% Radial 2 X D .05 x D 275 8404 59 0.001 4202 59 0.0020 2801 71 0.0036 2101 74 0.0050
High Temp AlloysInconel 625, 718, Rene 40% Radial .25 x D 1 x D 70 2139 3 0.0004 1070 3 0.0007 713 4 0.0013 535 4 0.0019
Hastalloy, Haynes, A286 20% Radial 1.25 x D .3 x D 80 2445 4 0.0004 1222 4 0.0009 815 5 0.0016 611 5 0.0022Waspalloy, Cobalt Chrome 7% Radial 1.5 x D .1 x D 125 3820 11 0.0007 1910 11 0.0015 1273 13 0.0026 955 14 0.0037
5% Radial 2 X D .05 x D 138 4202 29 0.001 2101 29 0.0020 1401 35 0.0036 1051 37 0.0050
Tit anium [ 6AL4V]Grades (5-38) Full Slot 0.5 1 x D 180 5501 8 0.0003 2750 8 0.0007 1834 9 0.0013 1375 10 0.0018
30% Radial 1.25 x D .3 x D 250 7640 13 0.0004 3820 13 0.0008 2547 15 0.0015 1910 16 0.002110% Radial 1.5 x D .1 x D 325 9932 28 0.0007 4966 28 0.0014 3311 33 0.0025 2483 35 0.0035
5% Radial 2 X D .05 x D 358 10925 76 0.001 5463 76 0.0020 3642 92 0.0036 2731 96 0.0050
For High Speed Machine wit h a Tool Engagement ProgramsPlease call our Technical Depart ment f or Recommendat ions
4 FLUTE1/ 8 1/ 4 3/ 8 1/ 2
MATERIAL AXIAL DOCRADIAL
DOC
Carbon St eel SFM10XX, 11XX Full Slot 1 x D 1 x D 22012XX, 13XX 30% Radial 1.25 x D .3 x D 264
10% Radial 1.5 X D .1 x D 3435% Radial 2 X D .05 x D 378
Alloy St eel40XX, 41XX, 42XX Full Slot 1 x D 1 x D 180 44XX, 48XX, 86XX 30% Radial 1.25 x D .3 x D 225
10% Radial 1.5 X D .1 x D 2705% Radial 2 X D .05 x D 297
Tool St eelA2 ,A3, D2, H11, H13 50% Radial 1 x D 1 x D 180M1, O-1, S-7, NAK 55 30% Radial 1.25 x D .3 x D 225
10% Radial 1.5 X D .1 x D 2705% Radial 2 X D .05 x D 297
Cast Iron- grayGrey, GG-10 to GG-40 Full Slot 1 x D 1 x D 100
30% Radial 1.25 x D .3 x D 12510% Radial 1.5 X D .1 x D 163
5% Radial 2 X D .05 x D 179
Cast Iron- gray malleableDuctile (Nodular) Full Slot .75 x D 1 x D 155
Malleable 30% Radial 1.25 x D .3 x D 180GGG-40, to GGG-70 10% Radial 1.5 x D .1 x D 216
5% Radial 2 X D .05 x D 238
SS 3 00 & 4 00 Series303, 304, 316, 312 Full Slot .75 x D 1 x D 140420, 420F, 416, 440 30% Radial 1.25 x D .3 x D 185
10% Radial 1.5 x D .1 x D 2305% Radial 2 X D .05 x D 253
Precipit at ion SS15-5, 16-6, 17-4, 17-5 Full Slot 0.5 1 x D 115
30% Radial 1.25 x D .3 x D 18010% Radial 1.5 x D .1 x D 250
5% Radial 2 X D .05 x D 275
High Temp AlloysInconel 625, 718, Rene 40% Radial .25 x D 1 x D 70
Hastalloy, Haynes, A286 20% Radial 1.25 x D .3 x D 80Waspalloy, Cobalt Chrome 7% Radial 1.5 x D .1 x D 125
5% Radial 2 X D .05 x D 138
Tit anium [ 6AL4V]Grades (5-38) Full Slot 0.5 1 x D 180
30% Radial 1.25 x D .3 x D 25010% Radial 1.5 x D .1 x D 325
5% Radial 2 X D .05 x D 358
For High Speed Machine wit h a Tool Engagement ProgramsPlease call our Technical Depart ment f or Recommendat ions
RPM IPM CPT RPM IPM CPT RPM IPM CPT1345 16 0.0030 1121 15 0.0033 840 15 0.00431614 23 0.0036 1345 21 0.0040 1008 21 0.00522098 51 0.0060 1748 47 0.0067 1311 45 0.00862307 98 0.0060 1923 90 0.0067 1442 87 0.0086
1100 13 0.0029 917 12 0.0032 688 11 0.00411375 19 0.0034 1146 17 0.0038 860 17 0.00491650 38 0.0057 1375 35 0.0063 1031 34 0.00821815 77 0.0060 1513 70 0.0067 1135 69 0.0086
1100 13 0.0029 917 12 0.0032 688 11 0.00411375 19 0.0034 1146 17 0.0038 860 17 0.00491650 38 0.0057 1375 35 0.0063 1031 34 0.00821815 77 0.0060 1513 70 0.0067 1135 69 0.0086
611 7 0.0027 509 6 0.0030 382 6 0.0039764 10 0.0033 637 9 0.0036 478 9 0.0047993 22 0.0055 828 20 0.0060 621 19 0.0078
1093 46 0.0060 910 42 0.0067 683 41 0.0086
947 10 0.0026 789 9 0.0029 592 9 0.00371100 14 0.0031 917 13 0.0034 688 12 0.00441320 27 0.0052 1100 25 0.0057 825 24 0.00741452 61 0.0060 1210 56 0.0067 908 55 0.0086
856 8 0.0025 713 8 0.0027 535 8 0.00351131 13 0.0030 942 12 0.0033 707 12 0.00421408 28 0.0049 1173 25 0.0054 880 25 0.00701549 66 0.0060 1290 60 0.0067 968 59 0.0086
703 7 0.0023 586 6 0.0026 439 6 0.00331100 12 0.0028 917 11 0.0031 688 11 0.00401528 29 0.0047 1273 26 0.0051 955 26 0.00671681 71 0.0060 1401 65 0.0067 1051 64 0.0086
428 4 0.0022 357 3 0.0024 267 3 0.0032489 5 0.0027 407 5 0.0029 306 5 0.0038764 14 0.0044 637 12 0.0049 478 12 0.0064840 36 0.0060 700 33 0.0067 525 32 0.0086
1100 9 0.0021 917 9 0.0023 688 8 0.00301528 15 0.0025 1273 14 0.0028 955 14 0.00361986 34 0.0042 1655 31 0.0046 1242 30 0.00602185 93 0.0060 1821 85 0.0067 1366 83 0.0086
15/ 8 3/ 4CPT: Chip per toothSFM: Surface feet per minuteIPM: Inches per minuteDOC: Depth of cutFPT: Feed per tooth
SFM=RPM= 3.82 x SFM/DIA.IPM= FPT x No. Teeth X RPMFPT= IPM/ (No. Teeth x RPM)
.262 x Dia. X RPM
Legend:
Formulas: