Titanium Honeycomb Core
Titanium Honeycomb Core is a metallic honeycomb expanded or corrugated from CP-Ti Grade 2 or Ti-6Al-4V foil, available at 3.1, 4.5, 6.0, 8.1 and 12 PCF densities and in perforated form for acoustic use.
Reference datasheet — Titanium Honeycomb Core is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the 6.0PCF condition
Titanium Honeycomb Core grades and fills
Titanium Honeycomb Core is supplied in 7 conditions, soft to hard. 6.0PCF is the default FabDigit quotes; the values on this page are for it.
Compare all 7 grades and fillsHide
| Grade · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
3.1 pcf (0.050 g/cm³) low-density Ti-3Al-2.5V core | Lightest practical Ti core — weight-critical hot structure where core stresses are low. | 3 | |||
CP titanium (Grade 2) foil core | Cheaper, more formable core for corrosion/acoustic duty where strength and hot creep are secondary. | 5 | |||
4.5 pcf (0.072 g/cm³) Ti-3Al-2.5V core | Intermediate density — good stiffness-to-weight for moderately loaded hot sandwich panels. | 6 | |||
6.0PCFDefault 6.0 pcf (0.096 g/cm³) Ti-3Al-2.5V core | Default workhorse density for titanium sandwich panels — balanced shear strength, crush strength and weight. | 10 | |||
Ti-6Al-4V foil core | Use when core strength or service temperature above ~450 °C drives the design; hardest to form and most expensive. | 13 | |||
8.1 pcf (0.130 g/cm³) high-density Ti-3Al-2.5V core | Pick where local crush, insert pull-out or high transverse shear loads govern. | 15 | |||
12 pcf (0.192 g/cm³) very-high-density Ti-3Al-2.5V core | Highest-load ramp/edge-close-out and hard-point regions, leading-edge TPS core. | 28 |
Supply forms, finishes and certifications
Ways Titanium Honeycomb Core is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
PERF | Perforated / vented cell wall core | Supply option |
What is Titanium Honeycomb Core?
Titanium Honeycomb Core is a metallic honeycomb expanded or corrugated from CP-Ti Grade 2 or Ti-6Al-4V foil, available at 3.1, 4.5, 6.0, 8.1 and 12 PCF densities and in perforated form for acoustic use. The default grade is 0.096 g/cm³ with 1.1 GPa elastic modulus and 0.25 W/m·K conductivity; it is selected for lightweight, high-temperature, corrosion-resistant sandwich structures in aerospace and hypersonic thermal protection. Node joining requires resistance welding, Ti-Cu-Ni brazing or diffusion bonding, with hot processing under vacuum or inert gas. Cost and lead time are high; stainless steel honeycomb is the cheaper substitute. Titanium Honeycomb Core has a density of 0.1 g/cm³ (0.0035 lb/in³), lighter than 87% of composite grades. Titanium Honeycomb Core has a tensile strength of 10 MPa (1.38 ksi), weaker than 84% of composite grades. The elastic modulus is 1.1 GPa (0.16 Msi).
What is Titanium Honeycomb Core used for?
- hypersonic vehicle panels
- engine nacelle structures
- high-temperature aerospace sandwich panels
Advantages
- Good UV / weathering resistance — 100/100, better than 93% of composite grades
- Lightweight — 0.1 g/cm³ (0.0035 lb/in³), better than 87% of composite grades
- High service temperature — 425°C (797 °F), better than 84% of composite grades
Limitations
- Hard to polish — 20/100, worse than 90% of composite grades
- High embodied carbon — 45 kg CO₂/kg, worse than 90% of composite grades
- Low stiffness — 1.1 GPa (0.16 Msi), worse than 85% of composite grades
- Poor heat conductor — 0.25 W/m·K (0.144 BTU/hr·ft·°F), worse than 76% of composite grades
Titanium Honeycomb Core properties
Typical room-temperature values for Titanium Honeycomb Core-6.0PCF; bars are the position among composite grades.
Physical1
Titanium Honeycomb Core has a density of 0.1 g/cm³ (0.0035 lb/in³), lighter than 87% of composite grades.
Mechanical6
Titanium Honeycomb Core has a tensile strength of 10 MPa (1.38 ksi), weaker than 84% of composite grades. The elastic modulus is 1.1 GPa (0.16 Msi).
Thermal6
Titanium Honeycomb Core is rated for continuous service to 425°C (797 °F). It conducts heat at 0.25 W/m·K (0.144 BTU/hr·ft·°F), worse than 76% of composite grades. Thermal expansion is 8.8 µm/m·K (4.89 µin/in·°F).
Electrical1
Titanium Honeycomb Core has an electrical resistivity of 1.26×10⁻⁶ Ω·m.
Chemical & Environmental3
Corrosion resistance is excellent (85/100), better than 65% of composite grades. UV resistance is excellent.
Sustainability4
Producing a kilogram of Titanium Honeycomb Core takes about 750 MJ of energy and emits 45 kg of CO₂ — more than 93% of composite grades. Typical recycled content is 5%.
Manufacturability2
Titanium Honeycomb Core's machinability is poor (25/100, worse than 65% of composite grades).
Common Calculations4
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the composite family
Yield strength against density for every composite grade FabDigit runs. Titanium Honeycomb Core is highlighted; hover a dot for its name, or open the interactive family chart.
Working with Titanium Honeycomb Core
Is Titanium Honeycomb Core easy to machine?
Cut and net-shape the core with ultrasonic knife, abrasive waterjet (with core support/freeze fixturing) or high-speed carbide disc cutters; conventional milling of expanded core needs potting or ice-fill to avoid cell crushing.
Can Titanium Honeycomb Core be welded?
Node joining is by resistance seam welding of the foil stack, Ti-Cu-Ni braze or diffusion bonding; facesheets are attached by brazing, LID/diffusion bonding or high-temperature polyimide adhesive — all in vacuum or inert gas to avoid oxygen/hydrogen pickup.
Can Titanium Honeycomb Core be formed, bent or molded?
Foil is corrugated or stack-expanded to hexagonal cells; contoured panels use crush-forming, heat-assisted forming or flex-core geometry, since Ti has far less room-temperature stretch than 5052 aluminium.
Titanium Honeycomb Core 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 |
|---|---|---|
| Alalpha stabilizer | 2.5 – 3.5 | 3 |
| Vbeta stabilizer | 2 – 3 | 2.5 |
| Fe | ≤ 0.3 | 0.12 |
| O0.12 % max for extra-low-interstitial foil | ≤ 0.15 | 0.1 |
| C | ≤ 0.08 | 0.02 |
| N | ≤ 0.03 | 0.01 |
| Hlower limits typical for thin foil | ≤ 0.02 | 0.01 |
| Ti | balance |
What surface finishes work on Titanium Honeycomb Core?
Chemical clean/pickle (HNO₃-HF) and passivation before bonding; no plating needed for corrosion, and anodize or primer is applied only for adhesive-bond surface preparation.
Equivalent designations
Standards and trade names that resolve to Titanium Honeycomb Core in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- Also called
- Ti-3Al-2.5V
How much does Titanium Honeycomb Core cost?
Titanium Honeycomb Core is a high-cost composite ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Titanium Honeycomb Core — frequently asked
What is Titanium Honeycomb Core used for?
Titanium Honeycomb Core is typically used for hypersonic vehicle panels, engine nacelle structures and high-temperature aerospace sandwich panels. In short: lightest high-temperature metal core; vacuum-brazed or diffusion-bonded nodes; high cost and lead time.
What is the tensile strength of Titanium Honeycomb Core?
Titanium Honeycomb Core has a typical tensile strength of 10 MPa (1.38 ksi) — weaker than 84% of composite grades. Strength varies by condition: see the 7 listed tempers.
Is Titanium Honeycomb Core easy to machine?
Not especially — machinability is rated poor (25/100, worse than 65% of composite grades). Cut and net-shape the core with ultrasonic knife, abrasive waterjet (with core support/freeze fixturing) or high-speed carbide disc cutters; conventional milling of expanded core needs potting or ice-fill to avoid cell crushing.
Can Titanium Honeycomb Core be welded?
Node joining is by resistance seam welding of the foil stack, Ti-Cu-Ni braze or diffusion bonding; facesheets are attached by brazing, LID/diffusion bonding or high-temperature polyimide adhesive — all in vacuum or inert gas to avoid oxygen/hydrogen pickup.
What surface finishes work on Titanium Honeycomb Core?
Chemical clean/pickle (HNO₃-HF) and passivation before bonding; no plating needed for corrosion, and anodize or primer is applied only for adhesive-bond surface preparation.
Can Titanium Honeycomb Core be formed, bent or molded?
Foil is corrugated or stack-expanded to hexagonal cells; contoured panels use crush-forming, heat-assisted forming or flex-core geometry, since Ti has far less room-temperature stretch than 5052 aluminium.
What is the maximum service temperature of Titanium Honeycomb Core?
Titanium Honeycomb Core is rated for continuous use to about 425°C (797 °F), and briefly to 600°C. Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
How much does Titanium Honeycomb Core cost?
Titanium Honeycomb Core is a high-cost composite ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- AMS 4943 / ASTM B265 — Ti-3Al-2.5V and CP titanium sheet, strip and foil — SAE / ASTM (2020)
- ASTM C365 (flatwise compressive) and ASTM C273 (shear) for sandwich core — ASTM (2016)
- MIL-HDBK-23A, Structural Sandwich Composites — US DoD (1968)
- ASM Handbook Vol. 2 — Properties of Titanium Alloys — ASM International (1990)
- Gibson & Ashby, Cellular Solids: Structure and Properties (honeycomb scaling laws) — Cambridge University Press (1997)
- Metallic honeycomb core attributes and property tables (Hexcel HexWeb / Plascore) — Hexcel, Plascore (2022)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.