Sandvik Coromant Parting and grooving - users guide - Manual (Page 74)

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The different grades
Grade GC3115
Based on a hard substrate, MT-CVD coated with TiCN-Al2O3 layer.
A high wear resistant grade for grooving and turning applications under stable conditions.
Also effective in hard steels.
High cutting speeds.
Grade GC4225 – first choice for cast iron
Based on a hard gradient sintered substrate, MT-CVD coated with TiCN-Al2O3-TiN layer
(black and yellow).
An all-round grade for ISO-P and ISO-K with excellent combination of high wear resistance
and good edge security. To be used in grooving, turning and parting-off operations under
stable conditions.
Medium to high cutting speeds.
Grade GC1125 – the universal grade
A fine grained substrate, PVD-coated with TiAlN layer.
An excellent all-round grade in all ISO-areas. First choice for parting-off tubes, grooving and
turning operations and works well in low-carbon and other smearing materials.
Low to medium cutting speeds.
Grade GC2135 – first choice for stainless steel
A MT-CVD-coated grade with TiCN-Al2O3-TiN layer.
A grade for toughness demanding operations such as parting-off to centre and interrupted
cuts.
Low to medium cutting speeds.
Grade GC2145
The markets toughest substrate, PVD coated with TiAlN layer.
For extremely toughness demanding operations, such as interrupted cuts and parting-off to
centre in stainless steel.
Low cutting speeds.
Grade S05F
MT-CVD-coated TiCN-Al2O3-TiN layer at a fine grained carbide substrate. For roughing
to finishing in HRSA-materials.