Grade 2 (CP) / Grade 5 (Ti-6Al-4V)
Titanium
Titanium pairs strong corrosion resistance with low density. At comparable strength it weighs roughly half what steel does. We supply commercially pure (Grade 2) and alloy (Grade 5) titanium sheet for gaskets in aerospace, chemical processing, desalination, and medical applications.
At a Glance
Temperature Range
-253 °C (LH2 cryogenic) to +315 °C in seawater; ~350 °C continuous in dry oxidising air, short-term to ~425 °C (Grade 2)
Thickness Range
0.1 mm to 6 mm (strip and sheet)
Available Forms
Technical Properties
Typical values across stocked grades. Specific grade data sheets available on request.
Alloy Composition
Titanium (Ti)
Balance (≥98.9% for Grade 2)
Iron (Fe)
≤0.30% (Grade 2)
Oxygen (O)
≤0.25% (Grade 2)
Carbon (C)
≤0.08% (Grade 2)
Nitrogen (N)
≤0.03% (Grade 2)
Aluminium (Al)
5.5–6.75% (Grade 5 only)
Vanadium (V)
3.5–4.5% (Grade 5 only)
Physical Characteristics
Density
4.51 g/cm³ (Grade 2)
Tensile Strength
345–485 MPa (Grade 2, ASTM B265)
Elongation at Break
20–30% in 50 mm (Grade 2)
Thermal Conductivity
16.4 W/m·K at 25 °C
Chemical Resistance
Resistant To
- Seawater and marine atmospheres (superior to all stainless steels)
- Chloride-bearing water and brine (immune to chloride SCC)
- Wet chlorine gas and chlorine dioxide
- Nitric acid (all concentrations at ambient temperature, excluding red fuming nitric acid — see notRecommended)
- Organic acids (acetic, citric, dilute oxalic)
- Sodium hydroxide (moderate concentrations)
- Body fluids (biocompatible — used in medical implants)
Limited Resistance
- Sulphuric acid (dilute, below ~5%)
- Hydrochloric acid (very dilute only, below ~1% at ambient temperature)
Not Recommended
- Fluoride ions at any concentration. Even trace levels cause aggressive crevice corrosion, so use Monel for fluoride-bearing media.
- Hydrofluoric acid at any concentration: titanium dissolves rapidly. Use Monel instead.
- Red fuming nitric acid (impact-sensitive violent reaction when water content is low)
- Dry chlorine gas (<~3% water — ignition risk on contact; wet chlorine is safe)
- Anhydrous methanol (SCC risk; minimum 1.5–2% water content required to inhibit cracking)
- Concentrated reducing acids (sulphuric, hydrochloric). Use Hastelloy instead
Standards & Certifications
Standards Compliance
Common Applications
- Desalination plant gaskets (seawater service)
- Aerospace and aircraft structural gaskets
- Chlor-alkali cell gaskets (wet chlorine service)
- Chemical processing (chloride-bearing media)
- Marine and offshore heat exchanger gaskets
- Medical and bioprocessing equipment seals
- Spiral wound gasket winding (lightweight, corrosion-resistant)
- Pulp and paper bleach plant gaskets
Not Recommended For
- Very high material cost: typically 5–8× the price of 316 stainless steel. Specify only for weight-critical or corrosion-specific applications.
- Not resistant to hydrofluoric acid or fluoride ions. Trace fluorides in process media can cause unexpected attack
- Violent reaction risk in red fuming nitric acid (impact-sensitive when water content is low); ignition risk in dry chlorine gas (<~3% water). Strict safety assessment required
- Limited service temperature: 315 °C in seawater, ~350 °C continuous in dry oxidising air with alpha-case forming above 350 °C (Grade 2). For higher temperatures use nickel superalloys.
- Galling tendency when titanium contacts titanium. Use anti-galling coatings on bolted joints
- Difficult to weld without inert gas shielding, which lets oxidation weaken the weld zone
Available Grades
Titanium Grade 2 Sheet (Commercially Pure)
Standard commercially pure titanium for gasket fabrication. Excellent corrosion resistance with good formability. Our standard recommendation for most titanium gasket applications.
Titanium Grade 5 Sheet (Ti-6Al-4V)
Aluminium-vanadium alloy with roughly double the strength of Grade 2. Used where both corrosion resistance and high mechanical strength are required. Supplied on request.
Need Titanium?
We supply titanium in sheet, roll, and custom die-cut forms. Contact our team for pricing, data sheets, or technical assistance.
Disclaimer
This resource is provided for general engineering reference only and does not constitute professional advice, specification, or guarantee of performance. Actual results depend on specific application conditions. Universal Gaskets Pty Ltd accepts no responsibility or liability for decisions made based on this information. For full terms, see our Terms & Conditions.