Drawing No. EH–MT–025 // Engineering Materials
Titanium Alloy Properties
Reviewed August 2026
Ti-6Al-4V is the dominant alpha-beta titanium alloy and is used here as the titanium reference. It combines high specific strength and corrosion resistance with relatively low thermal conductivity and a modulus roughly half that of steel.
Representative properties
Switch units without changing the underlying material reference.
What changes these properties?
Engineering variability
- Strength varies with anneal, solution treatment, aging, product form and specification.
- Elastic modulus is much lower than steel despite high strength, so stiffness can govern.
- Thermal conductivity is low for a metal and temperature dependent.
- High-temperature oxidation, creep and fatigue require application-specific data.
Selection note
Strong choice for aerospace, chemical, marine and biomedical applications where corrosion resistance and specific strength justify higher material and fabrication cost.
Do not combine strength from one grade/condition with modulus, thermal data or temperature limits from another without checking compatibility. Where the overview shows a range, it is intended to expose variability—not establish allowable bounds.
Property interpretation
Stiffness vs strength
Young’s modulus controls elastic deformation. Yield or fracture strength controls how far the material can be stressed. These are separate material characteristics.
Thermal response
Thermal conductivity controls temperature gradients, specific heat contributes to thermal inertia, and expansion controls thermally induced strain when movement is restrained.
Temperature transition
The final property card is deliberately labeled “melting / transition.” Metals often have a solidus–liquidus range; amorphous polymers and glass use softening or glass-transition concepts; concrete and wood decompose instead of exhibiting one clean melt point.
Technical sources
Source hierarchy favors manufacturers, industry associations, standards bodies and government engineering references. Strength data must still be reconciled with the exact procurement specification.