c-2900-26

Grade descriptions
PARTING AND GROOVING
A
ENG
Grades for parting and grooving
P
Steel, cast steel, long chipping malleable iron
Basic grades
Complementary grades
B
GC1125 (HC) - P30 (P15-P45)
This PVD-coated cemented carbide is an excellent allround grade. A good choice for
parting-off tubes in steel. Also very good in grooving and turning operations. Speeds
and feeds from medium to low.
GC3115 (HC) – P15 (P05-P25)
A very high wear resistant CVD-coated grade. Especially recommended for grooving
and turning at stable conditions due to its excellent hot hardness, while also
effective in hard steels. To be used at high cutting speeds under good conditions.
C
GC4325 (HC) - P25 (P10-P40)
A CVD-coated carbide grade for finishing to roughing of steel and steel castings. This
grade can handle continuous cuts as well as interrupted cuts at high metal removal
rates. A grade for a broad application area. Equipped with Inveio coating
technology.
GC1145 (HC) - P45 (P25-P50)
A PVD-coated carbide grade with very high demands on toughness behavior. It is
suitable in parting off operations and applications demanding very good edge line
toughness. Works well in smearing materials. To be used at low cutting speeds.
GC1135 (HC) – P25 (P10-P45)
A CVD-coated carbide grade for toughness demanding operations such as cut-off to
centre and interrupted cuts. Back up alternative when grooving and turning. Very
good bulk and edge line toughness. To be used at low to medium cutting speeds.
CT525 (HT) – P10 (P01-P15)
An uncoated cermet grade with excellent resistance to oxidation and smearing. For
high quality surface finishes when grooving low alloyed and alloyed steels under fairly
good conditions. Moderate cutting speeds and feeds.
D
GC2135 (HC) - P35 (P20-P50)
A CVD-coated carbide grade for toughness demanding operations such as cut-off to
centre and interrupted cuts. Back up alternative when grooving and turning. Very
good bulk and edge line toughness.To be used at low to medium cutting speeds
GC1025 (HC) – P25 (P15–P45)
A PVD-coated carbide grade excellent as all-round grade for Small Part Machining.
This grade works very well in low carbon steel and other smearing materials. Speeds
and feeds from medium to low.
E
F
Letter symbols specifying the designation of hard
cutting materials:
Hardmetals:
Ceramics:
CA Oxide ceramics containing primarily
aluminium oxide (Al 2O 3).
Diamond:
DP Polycrystalline diamond 1)
G
HW
HT
Uncoated hardmetal containing primarily tungsten
carbide (WC)
Uncoated hardmetal, also called cermet, containing
primarily titanium carbides (TIC) or titanium nitrides
(TIN) or both
CM
CN
Mixed ceramics containing primarily
aluminium oxide (Al 2O 3) but containing
components other than oxides.
Nitride ceramics containing primarily
silicon nitride (Si 3N 4)
Boron nitride:
BN Polycrystalline boron nitride 1)
1) Polycrystalline diamond and polycrystalline
boron nitride are also named superhard cutting
materials.
HC
Hardmetals as above, but coated
CC
Ceramics as above, but coated.
H
PARTING AND GROOVING Grade descriptions
B 149