Insert grade recommendations
| Material |
First choice |
Second choice |
 |
GC1024 |
CD 860-PM |
GC34 |
CD460-XM |
 |
GC1220 |
R846 |
GC34 |
CD460-XM |
 |
GC1210 |
R842 |
GC34 |
CD460-XM |
 |
GC1220 |
R846 |
|
|
 |
H10F |
CD 860-NM |
GC34 |
CD460-XM |
 |
GC24 |
CD 460-XM |
|
|
The basic choice is the universal GC1220. Optimized grades are available for cast iron (GC1210) and aluminium (H10F). For further optimization, different PVD-coatings are available as Tailor Made.
GC1220
 |
 |
First choice grade for steel, stainless steels, HRSA and titanium, but can be used in all materials.
Fine-grained cemented carbide with an excellent combination of both hardness and toughness. The carbide is PVD-coated with 3-microns of nano-multilayers TiAlN coating, giving very good edge line security.
GC1210
 |
 |
First choice in cast iron and a wear resistant alternative for steel.
Hard and very wear resistant carbide substrate. The carbide is coated with AlCrN, providing excellent wear resistance and resistance against plastic deformation.
GC34
Fine-grained cemented carbide substrate combined with a PVD nano structured coating layer of TiAlN. Giving very good edge line security as high hardness and toughness behaviour of the grade. The coating provides a smooth surface for excellent chip evacuation. A good choice for mixed production in all type of materials.
H10F
First choice for Aluminiums with a silicone content of up to 12%. A fine-grained cemented carbide substrate. The fine grains maintain the sharp cutting edge throughout the entire tool life.
Coromant Delta® – brazed carbide drills
The basic choice is grade P20 for steel applications and grade K20 for other materials. Grade H10F and different PVD coatings are available as Tailor Made.
P20
 |
 |
First choice for steel alloys.
A wear resistant and tough substrate PVD-coated with a low-friction TiN-layer.
K20
 |
|
First choice for stainless steel, cast iron, aluminium and heat resistant materials.
PVD-coated with a low-friction TiN-layer on a tough WC-Co substrate.