c-2900-26

A
GENERAL TURNING
Grade descriptions
Grades for general turning
P
Steel, cast steel, martensitic stainless steel, long chipping malleable iron
ENG
B
Basic grades
Complementary grades
GC4305 (HC) - P05 (P01-P15)
A CVD-coated grade recommended for stable conditions when higher metal removal
rate is needed in medium to rough steel applications. Is able to withstand high
temperatures.
GC1525 (HC) – P15 (P05-P25)
A PVD coated cermet for finishing and semi-finishing of low carbon and low alloyed
steels. To be used when good surface quality is demanded at medium to high cutting
speeds. f n x a p < 0.35 mm 2 .
C
GC4315 (HC) - P15 (P01-P30)
A CVD-coated carbide grade for finishing to roughing in applications with continuous
cut to light intermittence of steel and steel castings.
CT5015 (HT) – P10 (P01-P20)
An uncoated cermet for finishing when high surface quality is required. f n x a p < 0.35
mm 2
D
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.
E
GC4335 (HC) - P35 (P25-P45)
A CVD-coated grade for steel turning with secure and reliable performance in tough
and demanding operations. Ideal for difficult surfaces, vibration issues, heavy
interruptions and unstable conditions.
F
G
Letter symbols specifying the designation of
hard cutting materials:
Ceramics:
CA Oxide ceramics containing primarily
aluminium oxide (Al 2O 3).
Diamond:
DP Polycrystalline diamond 1)
H
Hardmetals:
HW Uncoated hardmetal containing primarily
tungsten carbide (WC)
HT
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.
CC
Ceramics as above, but coated.
HC
Hardmetals as above, but coated
GENERAL TURNING Grade descriptions
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