SGN

External grooving o f hardened steel

7˚ INSL Ref.

PSteel
MStainless
KCast iron
NNon-ferrous
SSuperalloys: First choice

Hard materials : Second choice H CBN External

Seat

DesignationCW±0.025REINSLh
size
InternalSGN200-020220.2z205
SGN300-020330.2z205
SGN400-020440.2z205

Face z: Line up

STANDARD CUTTING CONDITIONS

Parting

ISOWorkpiece materialHardnessPriorityGradeVc (m/min) Cutting speed
< 300 HBFirst choiceAH7025, AH72550 - 180
< 300 HBPriority for wear resistanceT922580 - 300
Steels (C45, 34CrMo4, etc.)< 300 HBPriority for wear resistanceT912580 - 200
< 300 HBPriority for impact resistanceGH13050 - 120
< 300 HBPriority for surface finishNS953080 - 220
Stainless steel< 200 HBFirst choiceAH7025, AH72550 - 120
(X10CrNiS18-9, etc.)< 200 HBPriority for impact resistanceGH13050 - 120
Gray cast iron-First choiceT515, AH702550 - 180
(GG25, 250, etc.)-Priority for impact resistanceGH13050 - 180
Ductile cast irons-First choiceT515, AH702550 - 120
(GGG45, 450-10S, etc.)-Priority for impact resistanceGH13050 - 120
Aluminium alloys-First choiceTH10100 - 500
(Si<12% )-First choiceKS05F100 - 600
Superalloys< HRC 40First choiceAH702520 - 60
(Inconel718, etc.)< HRC 40Priority for wear resistanceAH90520 - 80
< HRC 40First choiceAH90520 - 80
Titanium alloys Ti6Al4V t< HRC 40Priority for impact resistanceAH7025, AH72520 - 80
--, ec.< HRC 40Priority for surface finishKS05F20 - 60
Hardened steels (34CrMo4, etc.)> HRC 50First choiceBX36080 - 150

*Please see the page F031 - F033 for feed: f (mm/rev).