KYOCERA Hardcoating Technologies

AlTiN | Black

HTN

MICROHARDNESS
2200 HV

COEFFICIENT OF FRICTION
0.40 – 0.65

OXIDATION TEMPERATURE
600°C / 1112°F

THICKNESS
1-5 Microns (based on tool diameter)

HTN

MICROHARDNESS
2200 HV

COEFFICIENT OF FRICTION
0.40 – 0.65

OXIDATION TEMPERATURE
600°C / 1112°F

THICKNESS
1-5 Microns (based on tool diameter)

HTA

KYOCERA Hardcoating’s Aluminum Titanium Nitride (AlTiN) is a high-performance PVD coating renowned for its exceptional hardness, thermal stability, and abrasion resistance. With its distinctive black appearance, AlTiN is engineered to withstand extreme conditions, making it an ideal choice for applications involving high-speed machining, elevated temperatures, and demanding materials.

Applications

Industrial & Manufacturing

Milling cutters and drills used in dry or high-speed operations
Hobbing tools and inserts for gear and spline production
Saw blades and cutoff tools used on abrasive materials
Form tools and broaches working in hardened or alloyed steels

Automotive & Powertrain

Machining cast iron engine blocks, brake components, and transmission parts
Tools used in cylinder head, camshaft, and crankshaft production
Inserts and reamers exposed to continuous high-load machining cycles

Aerospace & Defense

Machining components made from heat-resistant alloys (e.g., Inconel, Waspaloy)
Structural parts requiring coatings that maintain hardness at elevated temps
Engine or exhaust-related tooling where oxidation resistance is critical

Tool & Die / Moldmaking

High-wear mold inserts or cavities used in hot forging and die casting
Tools subject to erosion from glass-filled or abrasive plastics
Dies and punches used in forming thicker or harder materials

Core Benefits

Superior Hardness: With a microhardness of approximately 3300 HV, AlTiN provides outstanding wear resistance, significantly extending the lifespan of components.
High Thermal Stability: Maintains integrity and performance at oxidation temperatures up to 800°C (1472°F), suitable for high-temperature operations.
Abrasion Resistance: Excels in environments with high metal removal rates, offering durability against abrasive wear.
Enhanced Performance in Dry Machining: The coating’s properties allow for effective performance without the need for excessive lubrication, reducing operational costs.

Coating Specs

MICROHARDNESS

3300 HV

COEFFICIENT OF FRICTION

0.45

OXIDATION TEMPERATURE

800°C / 1472°F

THICKNESS

1-5 Microns (based on tool diameter)

Why Choose HTA Coating?

HTA AlTiN stands out for its ability to withstand heat, wear, and abrasive contact in some of the toughest environments. Compared to other coatings, it offers a strong balance of hardness, adhesion, and thermal resistance—making it ideal for applications where high loads, friction, and elevated temperatures push materials to their limit.

While often used in high-speed machining, HTA’s value extends far beyond cutting tools. It performs reliably across a wide range of forming, forging, and industrial wear applications—especially where cooling is limited or dry conditions exist. Its ability to handle aggressive material contact without breaking down gives it a distinct advantage over coatings designed solely for general-purpose wear or low-friction use.

If your operation demands stability under thermal stress, resistance to abrasive wear, and consistent long-term performance, HTA offers a dependable, high-output solution that fits across multiple industries.

Deposition Process

Our HTA coating is applied using the Physical Vapor Deposition (PVD) process. This technique involves the cathodic arc evaporation of aluminum and titanium targets in a nitrogen atmosphere, resulting in a thin, dense, and adherent ceramic layer on the component’s surface. The process ensures uniform coverage, excellent adhesion, and minimal impact on the component’s dimensional tolerances.