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All-purpose grade for machining gray cast iron and hardened materials

Well balanced grade between wear resistance and chipping resistance
Features
  • HC2: Well-balanced grade for gray cast iron
  • HC5: Developed for use in hard turning applications for mill rolls
    Excellent toughness combined with wear resistance
Tool application
  • HC2: Gray cast iron semi-finishing to finishing
  • HC5: Roughing to finishing of cast iron and steel mill rolls
  • Finishing for hardened material
Grade map
↑High





SPEED
SX6
HC2 SP9
SX9
HC1,HW2 HC6
CP1
FINISH SEMI-FINISH  ROUGH
FEED

High→

↑High




SPEED
HC4,ZC4
450 HC7,ZC7
HC2,HC5
CONTINOUS LIGHT-INTERRUPT
FEED

High→

Grade characteristics
Turning mill roll materials
- - - Scroll the table - - -
ISO Work material Coolant Grade vc (m/min) (SFM) ap (mm) (inch) f (mm/rev) (IPR)
Cast Iron
Finish Turning
DRY/WET HC2 400 – 700 1300 – 2300 0.5 – 1.5 .020 – .060 0.1 – 0.4 .004 – .016
Mill Roll
Rough-Finish Turning
DRY HC5 90 – 180 300 – 600 0.5 – 2.0 .020 – .080 0.1 – 0.3 .004 – .012
HC2 70 – 130 230 – 430 0.5 – 2.0 .020 – .080 0.1 – 0.3 .004 – .012
Mill Roll
Rough-Finish Turning(CPM)
HC5 120 – 150 400 – 500 0.6 – 2.0 .024 – .080 0.1 – 0.3 .004 – .012
Cylinder liner
Material :
Gray cast iron
Cutting speed :
600 m/min 1970 SFM (HC2)
400 m/min 1310 SFM (competitor’s carbide)
Feed :
0.5 mm/rev .020 IPR
DOC :
0.7 mm .028 inch
Coolant :
DRY
HC2
110 pcs / corner
Competitor’s carbide
40 pcs / corner

HC2 achieves 1.5 times higher machining efficiency and nearly three times longer tool life than other competitors’ carbide.

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