TiAlSiN | 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)

HDT

HDT Titanium Aluminum Silicon Nitride (TiAlSiN) is a cutting-edge PVD coating engineered to deliver exceptional performance across a diverse range of applications. Characterized by its distinctive black appearance, HDT offers superior hardness, thermal stability, and wear resistance, making it ideal for high material removal rate operations involving alloy steels, hardened materials, titanium alloys, and superalloys.

While it’s a powerhouse in metal cutting operations, HDT also shines in non-cutting applications where strength, temperature resistance, and surface integrity are essential—making it a go-to coating across aerospace, medical, industrial tooling, and performance-based manufacturing sectors.

Applications

Aerospace & Automotive

Tooling and wear components for titanium and superalloy machining
Structural or engine-related parts exposed to heat and mechanical stress
Drivetrain and fuel system tooling used on hardened steels and castings
Inserts, dies, and forming tools for components requiring thermal and abrasion resistance

Tooling & Manufacturing Systems

Hobbing, broaching, and sawing tools for aggressive metal removal
Dies, punches, and molds used in hot work and high-friction conditions
Core components and fixtures exposed to repeated mechanical stress
Tooling for treated steels, hardened alloys, and abrasive materials

Industrial & Heavy Equipment

High-load wear plates, guides, and support surfaces in stamping and hydraulic systems
Surface-treated components in forging, forming, and high-pressure assemblies
Backing or bracing hardware in harsh environments with limited lubrication
Thermal protection for parts subject to impact, vibration, and scale buildup

Defense & High-Performance Engineering

Fixtures and fasteners in high-vibration aerospace or military systems
Coated parts exposed to sustained heat cycles or mechanical fatigue
Wear-resistant tooling for high-output environments with minimal downtime tolerance

Core Benefits

High Hardness (~3600 HV): Supports long wear life and surface protection even under abrasive or high-stress contact.
Thermal Resistance: Withstands oxidation up to 1150°C (2100°F), ideal for high-temperature environments.
Surface Protection: Acts as a barrier against erosion, thermal fatigue, and chemical degradation.
Performance in Harsh Environments: Designed to resist scaling, deformation, and adhesion of other materials—key in high-speed or high-pressure systems.
Color & Appearance: Black finish conveys high-tech performance and durability; useful for identification or branding.

Coating Specs

MICROHARDNESS

3600 HV

COEFFICIENT OF FRICTION

0.45

OXIDATION TEMPERATURE

1150°C / 2100°F

THICKNESS

1-5 Microns (varies by part geometry)

Why Choose HDT Coating?

HDT is designed for the most punishing environments—where intense heat, mechanical impact, and abrasive wear converge. This nanocomposite TiAlSiN coating stands out for its ability to perform at the highest level in hardened steels, superalloys, and titanium. With a high microhardness (~3600 HV) and outstanding oxidation resistance (up to 1150°C), HDT maintains integrity under thermal and mechanical extremes that push other coatings beyond their limits.

Unlike coatings that focus on friction reduction or surface polish, HDT is built for endurance. Its dense structure offers improved resistance to edge micro-chipping, crater wear, and thermal fatigue—especially in operations involving heavy loads, aggressive feed rates, or repeated impact. It’s ideal for high-performance applications that can’t afford early failure, particularly when machining, forming, or forging ultra-tough materials.

If your parts or tooling operate in a space where both temperature and pressure are unforgiving, HDT is the coating engineered to hold the line. It’s not just tough—it’s thermally and mechanically relentless.

For teams working with superalloys, hardened steel, or titanium, HDT offers a powerful combination of temperature resistance and mechanical durability. It’s not only suited for high-speed CNC tools—it also thrives on components that must endure real-world abuse: high heat, frequent impact, or aggressive contact with other surfaces.

Deposition Process

HDT is applied using advanced Physical Vapor Deposition (PVD) techniques—often through magnetron sputtering or arc evaporation. Titanium, aluminum, and silicon are vaporized in a vacuum chamber and deposited onto the substrate in a uniform, dense, nanocomposite structure. The result is a thin but extremely hard surface layer that retains its mechanical integrity at high temperatures and during prolonged wear cycles.

The inclusion of silicon in the TiAlN matrix improves oxidation resistance and enhances hardness at elevated temperatures, making HDT a preferred choice for high-performance engineering components that need to hold up under extreme thermal and mechanical loads.