TiN HP
Other · default condition
HP = hot-pressed / SPS dense bulk TiN
Choose for dense bulk parts, electrodes, crucibles and EDM-machinable conductive ceramic bodies.
Values for the HP condition
Other TiN tempers and conditions
TiN is listed in 3 conditions; see the grade overview at TiN.
Compare all 3 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Pressureless-sintered TiN | Lower-cost route for larger or complex bulk shapes where some residual porosity and lower hardness are acceptable. | — | — | — | 1,600 HV | 22 W/m·K |
Al₂O₃–TiN 30 % | Pick when a hard ceramic must also be EDM-wire-cut or wire-eroded — e.g. cutting inserts, punches, wear guides. | — | — | — | 1,750 HV | 25 W/m·K |
HPDefaultThis page Hot-pressed / SPS dense bulk TiN | Choose for dense bulk parts, electrodes, crucibles and EDM-machinable conductive ceramic bodies. | — | — | — | 1,900 HV | 29 W/m·K |
What is TiN HP?
TiN HP is TiN in the HP condition — choose for dense bulk parts, electrodes, crucibles and EDM-machinable conductive ceramic bodies. The elastic modulus is 250 GPa (36.3 Msi). TiN HP has a density of 5.22 g/cm³ (0.189 lb/in³), heavier than 54% of ceramic grades. It melts at 2,950°C (5,342 °F).
TiN HP properties
Typical room-temperature values for TiN HP; 13 are specific to this condition. Other listed values are TiN reference data and may not represent this condition. Bars are the position among ceramic grades.
Physical3
TiN HP has a density of 5.22 g/cm³ (0.189 lb/in³), heavier than 54% of ceramic grades. It melts at 2,950°C (5,342 °F).
Mechanical9
The elastic modulus is 250 GPa (36.3 Msi).
Thermal5
TiN HP is rated for continuous service to 600°C (1,112 °F). It conducts heat at 29 W/m·K (16.8 BTU/hr·ft·°F), better than 57% of ceramic grades. Thermal expansion is 9.4 µm/m·K (5.22 µin/in·°F).
Electrical2
TiN HP has an electrical resistivity of 3×10⁻⁷ Ω·m.
Chemical & Environmental2
Corrosion resistance is very good (75/100), better than 50% of ceramic grades.
Sustainability3
Producing a kilogram of TiN HP takes about 200 MJ of energy and emits 15 kg of CO₂ — more than 63% of ceramic grades. Typical recycled content is 0%.
Manufacturability3
TiN HP's machinability is not recommended (8/100, better than 69% of ceramic grades).
Common Calculations2
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with TiN HP
Is TiN easy to machine?
Bulk TiN is machined only by diamond grinding, lapping or laser; because it is electrically conductive it can also be wire/sink EDM'd — a key advantage over insulating nitrides.
Can TiN be welded?
Not weldable; joined by active-metal brazing (Ti/Zr-containing filler), diffusion bonding or mechanical clamping.
Can TiN be formed, bent or molded?
Shaped by uniaxial/CIP pressing then hot-pressing or SPS at 1650–2000 °C (pressureless sintering needs Ni/Co aid); coatings are produced by cathodic-arc/sputter PVD at 200–500 °C or CVD at 900–1050 °C in N₂/TiCl₄.
What surface finishes work on TiN?
Substrate must be polished before coating — PVD TiN replicates the surface; gold film can be polished, passivated or over-coated (TiCN/TiAlN) and is stripped chemically in H₂O₂-based baths for recoating.
TiN chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| N | 21 – 23 | 22.6 |
| Osurface oxide on powder | ≤ 1 | 0.4 |
| Cfrom carbothermal route | ≤ 0.5 | 0.15 |
| Nionly in liquid-phase (pressureless) sintered grades | ≤ 3 | — |
| Tistoichiometric TiN₁.₀; commercial TiNx ranges x ≈ 0.6–1.1 | ≥ 76 (balance) | — |
TiN HP — frequently asked
What is TiN HP used for?
TiN HP is typically used for cutting tool PVD coatings, wear-resistant coatings, decorative gold-tone finishes, diffusion barrier layers and medical implant coatings. In short: conductive, EDM-able nitride; standard gold tool coating; 600 °C oxidation limit.
Is TiN HP easy to machine?
Not especially — machinability is rated not recommended (8/100, better than 69% of ceramic grades). Bulk TiN is machined only by diamond grinding, lapping or laser; because it is electrically conductive it can also be wire/sink EDM'd — a key advantage over insulating nitrides.
Can TiN HP be welded?
Not weldable; joined by active-metal brazing (Ti/Zr-containing filler), diffusion bonding or mechanical clamping.
What surface finishes work on TiN HP?
Substrate must be polished before coating — PVD TiN replicates the surface; gold film can be polished, passivated or over-coated (TiCN/TiAlN) and is stripped chemically in H₂O₂-based baths for recoating.
Can TiN HP be formed, bent or molded?
Shaped by uniaxial/CIP pressing then hot-pressing or SPS at 1650–2000 °C (pressureless sintering needs Ni/Co aid); coatings are produced by cathodic-arc/sputter PVD at 200–500 °C or CVD at 900–1050 °C in N₂/TiCl₄.
What is the maximum service temperature of TiN HP?
TiN HP is rated for continuous use to about 600°C (1,112 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Sources
- Handbook of Refractory Carbides and Nitrides — Noyes/William Andrew (H.O. Pierson) (1996)
- ASM Engineered Materials Handbook, Vol. 4: Ceramics and Glasses — ASM International (1991)
- PVD hard coating datasheets (TiN / BALINIT A class) — Oerlikon Balzers / IHI Hauzer (2023)
- Non-oxide ceramic property tables (TiN, TiCN, Al₂O₃–TiN) — CES/MatWeb-type compilations (2024)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.