Page 303 - THREADING CATALOG

USER GUIDE

Machining Data for Solid Carbide Threading Endmills Cutting Diameter
Tensile Strength [Kspi] Material No. (1) Cutting Speed THREAD MILLING

Feed (in/tooth)
ISO Material Condition Hardness HB IC908 (SFM) 3/32 1/8 5/32 1/4 5/16 3/8 1/2 5/8 3/4 1.0 1.25
<0.25% C annealed 61 125 1 330-820 .0012 .0016 .0016 .0024 .0028 .0031 .0035 .0047 .0059 .0071 .0083
non-alloy ≥0.25% C annealed 94 190 2 260-690 .0012 .0016 .0016 .0024 .0028 .0031 .0035 .0047 .0059 .0071 .0083
steel and <0.55% C quenched and 123 250 3 210-560
cast steel, tempered
free cutting annealed 109 220 4 360-590 .0008 .0012 .0012 .0020 .0024 .0028 .0031 .0039 .0047 .0059 .0071
steel ≥0.55% C quenched and
tempered 145 300 5 310-520 .0008 .0012 .0012 .0020 .0025 .0028 .0031 .0039 .0047 .0059 .0071
annealed 87 200 6 300-520 .0008 .0008 .0012 .0012 .0016 .0020 .0020 .0028 .0031 .0039 .0043
P low alloy and cast steel 135 275 7 210-660 .0008 .0008 .0012 .0012 .0016 .0020 .0020 .0028 .0031 .0039 .0043
(less than 5% of quenched and
alloying elements) tempered 145 300 8 230-690 .0008 .0008 .0012 .0012 .0016 .0020 .0020 .0028 .0031 .0039 .0043
174 350 9 310-520 .0008 .0008 .0012 .0012 .0016 .0020 .0020 .0028 .0031 .0039 .0043
annealed 99 200 10 430-560 .0008 .0008 .0012 .0012 .0016 .0020 .0020 .0028 .0031 .0039 .0043
high alloyed steel, cast
steel and tool steel quenched and 160 325 11 250-330 .0008 .0008 .0012 .0012 .0016 .0020 .0020 .0028 .0031 .0039 .0043
tempered
ferritic /
stainless steel martensitic 99 200 12 360-560 .0008 .0008 .0012 .0012 .0016 .0020 .0020 .0028 .0031 .0039 .0043
and cast steel
martensitic 119 240 13 230-510 .0008 .0008 .0012 .0012 .0016 .0020 .0020 .0028 .0031 .0039 .0043
stainless steel austenitic,
M 87 180 14 280-330 .0008 .0008 .0012 .0012 .0016 .0020 .0020 .0028 .0031 .0039 .0043
and cast steel duplex
ferritic / pearlitic 180 17 230-490 .0012 .0016 .0016 .0024 .0028 .0031 .0035 .0047 .0059 .0071 .0083
gray cast iron (GG) pearlitic /
martensitic 260 18 360-460 .0012 .0016 .0016 .0024 .0028 .0031 .0035 .0047 .0059 .0071 .0083
K ferritic 160 15 390-520 .0012 .0016 .0016 .0024 .0028 .0031 .0035 .0047 .0059 .0071 .0083
nodular cast iron (GGG)
pearlitic 250 16 250-520 .0012 .0016 .0016 .0024 .0028 .0031 .0035 .0047 .0059 .0071 .0083
ferritic 130 19 390-520 .0012 .0016 .0016 .0024 .0028 .0031 .0035 .0047 .0059 .0071 .0083
malleable cast iron
pearlitic 230 20 360-460 .0012 .0016 .0016 .0024 .0028 .0031 .0035 .0047 .0059 .0071 .0083
aluminum- not hardenable 60 21 520-980 .0012 .0016 .0016 .0024 .0028 .0031 .0035 .0047 .0059 .0071 .0083
wrought alloys hardenable 100 22
not hardenable 75 23
≤12% Si
aluminum- hardenable 90 24
cast alloys high
>12% Si 130 25
temperature
>1% Pb free cutting 110 26
N
copper brass 90 27
alloys electrolytic
copper 100 28
duroplastics, 70 29 330-460 .0020 .0024 0028 0035 .0039 .0043 .0047 .0059 .0071 .0087 .0110
fiber plastics Shore D
non metallic 55
hard rubber 30
Shore D
annealed 200 31
Fe based
high hardened 280 32
temperature annealed 250 33 70-260 .0008 .0008 .0008 .0012 .0012 .0012 .0012 .0016 .0016 .0020 .0020
alloys Ni or Co hardened 350 34
S based
cast 320 35
pure 58 190 36
titanium alloys alpha+beta
alloys, hardened 152 310 37 70-260 .0008 .0008 .0008 .0012 .0012 .0012 .0012 .0016 .0016 .0020 .0020
hardened 55 HRC 38 180-210
hardened steel
H hardened 60 HRC 39 150-180
chilled cast iron cast 400 40 300-340
cast iron hardened 55 HRC 41 180-210
(1) For workpiece materials list, see pages 443-472

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