Series 66, 66CRAeAp AeVcDiameter ( (inch)D1)
FractionalHardnessAe x D1Ap x D1(sfm)3/161/43/81/25/83/41
Profile635RPM12937970364694851388132342426
CARBON STEELS≤ 0.05≤ 1(508-762)Fz0.00080.00120.00220.00300.00370.00380.0042
1018, 1040, 1080, 1090 10L50 1140≤ 275 BhnFeed (ipm)72.481.599.6131.0129.2135.2112.1
, , , 1212, 12L15, 1525, 1536or ≤ 28 HRcFinish762RPM155241164377625822465738812911
≤ 0.02≤ 2(610-914)Fz0.00060.00100.00180.00240.00300.00300.0034
PFeed (ipm)69.578.295.6125.7124.1129.8107.6
Pfil360RPM7334550136672750220018341375
roe≤ 0.05≤ 1Fz0.00060.00090.00170.00230.00290.00300.0032
ALLOY STEELS 4140, 4150, 4320,≤ 375 Bhn(288-432)Feed (ipm)30.834.743.656.957.460.548.4
5120, 5150, 8630, 86L20, 50100or ≤ 40 HRcFinish432RPM8801660144013300264022001650
≤ 0.02≤ 2Fz0.00050.00070.00140.00180.00230.00240.0026
(346-518)Feed (ipm)29.633.341.954.755.158.146.5
Pfil290RPM5908443129542216177214771108
roe≤ 0.05≤ 1232348Fz0.00040.00060.00120.00160.00200.00210.0022
TOOL STEELS≤ 375 Bhn(-)Feed (ipm)16.518.624.831.931.934.126.8
H A2, D2, H13, L2, M2, P20, S7, T15, W2or ≤ 40 HRcFiih348RPM7090531735452659212717721329
ns≤ 0.02≤ 2Fz0.00030.00050.00100.00130.00160.00170.0018
(278-418)Feed (ipm)15.917.923.830.630.632.825.7
Profile705RPM143631077271825386430935912693
CAST IRONS≤ 0.05≤ 1Fz0.00080.00120.00220.00300.00370.00380.0042
(LOW & MEDIUM ALLOY≤ 220 Bhn(564-846)Feed (ipm)80.490.5110.6145.4143.5150.1124.4
) Gray, Malleable, Dilor ≤ 19 HRcFinish846RPM172361292786186463517143093232
ucte≤ 0.02≤ 2Fz0.00060.00100.00180.00240.00300.00300.0034
(677-1015)Feed (ipm)77.286.9106.2139.6137.7144.1119.4
KPfil540RPM11002825155014126330027502063
roe≤ 0.05≤ 1(432648)Fz0.00060.00090.00170.00230.00290.00300.0032
CAST IRONS (HIGH ALLOY)≤ 260 Bhn-Feed (ipm)46.252.065.585.486.190.872.6
Gray, Malleable, Ductileor ≤ 26 HRcFinish648RPM13202990166014951396133002475
≤ 0.02≤ 2Fz0.00050.00070.00140.00180.00230.00240.0026
(518-778)Feed (ipm)44.449.962.882.082.787.169.7
Profile560RPM11409855757054278342328522139
≤ 0.05≤ 1Fz0.00060.00090.00170.00230.00290.00300.0032
STAINLESS STEELS (FREE MACHINING)≤ 275 Bhn(448-672)Feed (ipm)47.953.967.988.689.394.175.3
M 303, 416, 420F, 430F, 440For ≤ 28 HRcFinish448RPM9127684545643423273822821711
≤ 0.02≤ 2Fz0.00050.00070.00140.00180.00230.00240.0026
(358-538)Feed (ipm)30.734.543.456.757.260.248.2

STEELS STAINLESS STEELS

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