Tool Coatings
Standard Coatings
Harvey Tool's vast array of coating options, including AlTiN, AlTiN Nano, TiB2, Amorphous Diamond, and others, are each specially engineered to elevate your tool's potential. Each coating is optimized for the material its meant for, and provides enhancements to the tool including strength, lubricity, and heat resistance. Like all Harvey Tool products, our coated tools are all fully stocked and ready to ship same day.
Ferrous & Exotic Materials
TiN
Titanium
Nitride
-C1
• General purpose coating for machining ferrous materials.
Materials:
General purpose, ferrous materials
Coating Color:
Gold
Structure:
Mono-layer
Hardness (HV 0.05)
2,447 (24 GPa)
Coefficient of Friction:
.40
Coating Thickness (microns):
2 - 5
Max. Working Temp
1,000° F
AlTiN
Aluminum
Titanium Nitride
-C3
• High performance coating in ferrous materials.
• Excellent high temperature resistance and hardness.
• Maintains high surface hardness at elevated temperatures improving tool life and allowing faster feed rates.
• Produces aluminum oxide layer at high temperature which reduces thermal conductivity, transferring heat into the chip.
• Excellent in dry machining, machining titanium alloys, inconel, stainless alloys and cast iron.
• Not recommended for use in aluminum and aluminum alloys.
Materials:
Alloy steels, stainless steels, tool steels, titanium, inconel, nickel and other aerospace materials.
Coating Color:
Dark Gray / Black
Structure:
Multi-layer
Hardness (HV 0.05)
3,589 (35 GPa)
Coefficient of Friction:
.70
Coating Thickness (microns):
2 - 5
Max. Working Temp
1,400° F
AlTiN Nano
Aluminum Titanium
Nitride Nano
-C6
• Premium coating in ferrous materials.
• Latest generation AlTiN coating mixed with silicon to produce a unique nanocomposite coating.
• This structure improves hardness, heat resistance, and toughness over traditional AlTiN coatings.
• Superior results, extended tool life, and reduced cycle times over traditional AlTiN coatings in demanding applications where setup minimizes runout and vibration.
• Not recommended for use in aluminum and aluminum alloys.
Materials:
Hardened steels, hardened stainless, nickel based alloys, tool steels, titanium alloys, inconel and other aerospace materials
Coating Color:
Blue / Black
Structure:
Nano Composite Multi-layer
Hardness (HV 0.05)
4,181 (41 GPa)
Coefficient of Friction:
.40
Coating Thickness (microns):
1 - 4
Max. Working Temp
2,100° F
Non-Ferrous & Non-Metallic Materials
ZrN
Zirconium
Nitride
-C7
• High hardness, lubricity, and abrasion resistance.
• Improves performance over uncoated carbide in a wide variety of non-ferrous materials.
• Less expensive alternative to diamond coatings.
Materials:
Abrasive non-ferrous alloys such as Brass, Bronze, Copper, and Abrasive Aluminum Alloys.
Coating Color:
Light Gold / Champagne
Structure:
Mono-Layer
Hardness (HV 0.05)
2,243 (22 GPa)
Coefficient of Friction:
.40
Coating Thickness (microns):
2 - 5
Max. Working Temp
1,100° F
TiB₂
Titanium
Diboride
-C8
• Primary benefit over other non-ferrous coatings is extremely low affinity to aluminum.
• Prevents build-up on cutting edge, chip packing, and extends tool life.
• Recommended in Aluminum Alloys and Magnesium Alloys.
• Not ideally suited for abrasive varieties of these alloys.
Materials:
Aluminum Alloys, Magnesium Alloys
Coating Color:
Light Gray / Silver
Structure:
Mono-layer
Hardness (HV 0.05)
2,804 (27.5 GPa)
Coefficient of Friction:
.35
Coating Thickness (microns):
1 -3
Max. Working Temp
900° F
Amorphous Diamond
Diamond-Like
Coating
-C4
• A PVD amorphous diamond coating which improves lubricity and wear resistance in non-ferrous materials.
• Coating is thin relative to CVD diamond, preventing edge rounding.
• Sharp edges improve results (performance and finish) over CVD in certain abrasive, non-ferrous materials (copper, brass, high silicon aluminum).
• Low temperature threshold makes diamond unsuitable for ferrous applications.
Materials:
Abrasive Plastics, Graphite, Carbon Fiber Materials, Composites, Aluminum, Copper, Brass, Bronze, Carbon, Gold, Silver, Magnesium, Zinc
Coating Color:
Charcoal / Gray
Structure:
Mono-Layer
Hardness (HV 0.05)
7,954 - 8,973 (78 - 88 GPa)
Coefficient of Friction:
.10
Coating Thickness (microns):
0.5 - 2.5
Max. Working Temp
750° F
CVD Diamond
(4 μm)
Crystalline
CVD
Diamond
![Image](https://harveyperformance.widen.net/content/dnouoiyah7/png/Harvey_Coatings_C9.jpg?position=c&color=ffffff00&quality=80&u=rghc4j">)
• True Crystalline CVD diamond is grown directly into a carbide end mill.
• Dramatically improves hardness.
• Hardness improves abrasion resistance and allows higher feed rates than uncoated carbide.
• Ideal for machining Graphite, Composites, Green Carbide, and Green Ceramics.
• Thinner CVD layer yields a sharper cutting edge compared to the standard CVD coating and leaves a smoother finish on non-ferrous materials.
• Low temperature threshold makes diamond unsuitable for ferrous applications.
Materials:
Graphite, Composites, Green Carbide, Green Ceramics
Coating Color:
Gray
Structure:
True Crystalline CVD Multi-Layer
Hardness (HV 0.05)
8,973 - 9,993 (88 - 98 GPa)
Coefficient of Friction:
.05 - .30
Coating Thickness (microns):
3 - 5
Max. Working Temp
1,100° F
CVD Diamond
(9 μm)
Crystalline
CVD
Diamond
•True Crystalline CVD diamond is grown directly into a carbide end mill.
• Dramatically improves hardness.
• Hardness improves abrasion resistance and allows higher feed rates than uncoated carbide.
• Ideal for machining Graphite, Composites, Green Carbide, and Green Ceramics.
•Diamond layer approx 5 times thicker than Amorphous Diamond, improving wear resistance.
• Low temperature threshold makes diamond unsuitable for ferrous applications.
Materials:
Graphite, Composites, Green Carbide, Green Ceramics
Coating Color:
Gray
Structure:
True Crystalline CVD Multi-Layer
Hardness (HV 0.05)
8,973 - 9,993 (88 - 98 GPa)
Coefficient of Friction:
.05 - .30
Coating Thickness (microns):
8 - 10
Max. Working Temp
1,100° F
PCD Diamond
Polycrystalline
Diamond
• PCD Diamond is manufactured as a carbide backed flat wafer. The wafer is brazed to a carbide body to form an end mill.
• PCD has excellent hardness and abrasion resistance and is the thickest diamond layer we offer.
• Sharply ground cutting edges and thick diamond layer combine the sharp edge benefits of Amorphous Diamond with the abrasion resistance of CVD Diamond,
• Low temperature threshold makes diamond unsuitable for ferrous applications.
Materials:
Abrasive Plastics, Graphite, Carbon Fiber Materials, Composites, Aluminum, Copper, Brass, Bronze, Carbon, Gold, Silver, Magnesium, Zinc, Green Carbide, Green Ceramics
Coating Color:
Gray / Black
Structure:
Polycrystalline Diamond (Carbide Backed)
Hardness (HV 0.05)
8,973 - 9,993 (88 - 98 GPa)
Coefficient of Friction:
.05 - .20
Coating Thickness:
.010" - .030" Solid PCD Layer
Max. Working Temp
1,100° F
PLEASE NOTE: Information and test results were compiled from multiple sources and testing methods. Data presented is intended to be a general application guideline for comparing various coatings.