Page 7 - Carmex - FMTZ & FT Thread Mills for High Cutting Stability
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FMTZ & FT thread mills
Cutting Diameter = D
ISO Material Cutting Speed Feed inch/tooth
Standard ft/min
D ≤ .16 .16 < D < .35 D ≥ .35
Low & Medium Carbon Steels < 0.55%C 330-820 .0012-.0016 .0012-.0031 .0031-.0047
P High Carbon Steels ≥ 0.55%C 360-590 .0008-.0012 .0008-.0028 .0028-.0039
Alloy Steels, Treated Steels 290-520 .0008-.0012 .0012-.0024 .0020-.0031
Stainless Steel-Free Cutting 200-520 .0008-.0012 .0012-.0024 .0020-.0031
M Stainless Steel-Austenitic 200-390 .0008-.0012 .0012-.0020 .0016-.0028
Cast Steels 430-560 .0008-.0012 .0012-.0020 .0016-.0028
K Cast Iron 230-490 .0012-.0016 .0020-.0031 .0031-.0047
Aluminum ≤ 12%Si, Copper 490-1150 .0012-.0016 .0020-.0031 .0031-.0047
N Aluminum > 12%Si 330-820 .0008-.0012 .0012-.0020 .0016-.0028
Synthetics, Duroplastics, Thermoplastics 330-1310 .0020-.0028 .0028-.0043 .0039-.0059
S Nickel alloys, Titanium alloys 70-260 .0008-.0012 .0008-.0012 .0008-.0016
Hardened Steel 45-50 HRc 200-230 .0008-.0012 .0008-.0012 .0008-.0016
H
Hardened Steel 50-55 HRc 160-200 .0004-.0008 .0004-.0008 .0004-.0012
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