ISOWorkpiece materialHardnessGradeCutting speed Vc (m/min)Feed per tooth fz (mm/t)
Low carbon steel S15C, etc. C15E, etc.- 200HBAH3135100 - 2500.1 - 0.25
Alloy steel S55C, etc. C55, etc.- 300HBAH3135100 - 2300.1 - 0.2
Prehardened steel NAK80, PX5, etc.30 - 40HRCAH3135100 - 2300.1 - 0.2
Stainless steel SUS304, etc. X5CrNi18-9, etc.-AH313590 - 1800.1 - 0.25
Grey cast iron FC250, etc. 250, etc.150 - 250HBAH120140 - 2500.1 - 0.25
Ductile cast iron FCD400, etc. 450-10S, etc.150 - 250HBAH120110 - 2000.1 - 0.25
Titanium alloys Ti-6Al-4V, etc.-AH12030 - 600.08 - 0.2
Superalloys Inconel 718, etc.-AH12020 - 500.06 - 0.1
Hdd tl SKD61, etc. X40CrMoV5-1, etc.40 - 50HRCAH12045 - 700.08 - 0.15
arene see SKD11, etc. X153CrMoV12, etc.50 - 60HRCAH12040 - 650.06 - 0.1

X153CrMoV12, etc. F

ISOWorkpiece materialHardness HBGradeCutting speed Vc (m/min)Feed per tooth fz (mm/t)
Low carbon steel S15C, etc. C15E, etc.- 200AH725100 - 2500.1 - 0.25
High carbon steel S45C, S55C, etc. C45, C55, etc.200 - 300AH725100 - 2300.1 - 0.2
Alloy steel SCM440, SCr415, etc. 42CrMo4, etc.150 - 300AH725100 - 2300.1 - 0.2
Tool steel D2, etc. X153CrMoV12, etc.- 300AH725100 - 1800.1 - 0.2
Stainless steel SUS304, etc. X5CrNi18-9, etc.-AH14090 - 1800.1 - 0.25
Grey cast iron FC250, etc. 250, etc.150 - 250AH120140 - 2500.1 - 0.25
Ductile cast iron FCD400, etc. 450-10S, etc.150 - 250AH120110 - 2000.1 - 0.25
Superalloys Inconel 718, Ti-6Al-4V, etc.-AH72520 - 500.08 - 0.2

* When using LQMU11 inserts, see page H170 for proper feed per tooth setting.

  • For applications with poor chip evacuation, use air gun to remove chips from the machining area to avoid chip re-cutting and part damage.
  • To machine cast surface with unstable cutting depths or interruptions, it is recommended to lower the feed rate (fz) to the lowest parameter in the recommended range.
  • Rigidity of the machine and/or workpiece and the spindle power capability greatly infl uence the cutting conditions. For applications with large cutting width/depth and/or

long tool overhang, start with a Vc and fz in the lower range of the recommended cutting parameters and monitor the machine stability.

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