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Titanium Mechanical Properties Guide: Density, Strength and Performance (2026)
Learn titanium mechanical properties including density, tensile strength, yield strength, and performance comparison of Grade 2 and Grade 5 titanium bars.
mia Chang
6/17/20262 min read
Titanium Mechanical Properties Guide: Density, Strength and Performance (2026)
Introduction
Titanium is widely used in aerospace, medical, marine, and industrial applications due to its unique mechanical properties.
Understanding titanium density, strength, hardness, and elasticity is essential when selecting the correct titanium bar for engineering applications.
1. Titanium Density
Titanium has a relatively low density compared to other metals.
Titanium density: approximately 4.51 g/cm³
Stainless steel density: approximately 7.8 g/cm³
Aluminum density: approximately 2.7 g/cm³
👉 Titanium offers an excellent balance between weight and strength, making it ideal for aerospace and high-performance applications.
2. Tensile Strength
Tensile strength varies depending on titanium grade.
Grade 2 Titanium Bar: ~345 MPa
Grade 5 Titanium Bar (Ti-6Al-4V): ~895 MPa
👉 Grade 5 titanium is nearly 3 times stronger than Grade 2.
3. Yield Strength
Yield strength represents the point where permanent deformation begins.
Grade 2 Titanium: ~275 MPa
Grade 5 Titanium: ~828 MPa
👉 Higher yield strength makes Grade 5 suitable for structural and load-bearing applications.
4. Hardness
Titanium hardness also varies by grade:
Grade 2: relatively soft, easy to machine
Grade 5: significantly harder, more wear-resistant
👉 Higher hardness improves durability but increases machining difficulty.
5. Elasticity and Flexibility
Titanium has good elasticity, allowing it to absorb stress without permanent deformation.
This is especially important in:
Aerospace structures
Medical implants
Automotive components
6. Corrosion Resistance
Titanium naturally forms a protective oxide layer that provides:
Excellent seawater resistance
Strong acid resistance
Long-term durability in harsh environments
👉 This makes titanium ideal for marine and chemical applications.
7. Comparison: Grade 2 vs Grade 5 Mechanical Properties
Grade 2 Titanium
Lower strength
Higher ductility
Excellent corrosion resistance
Easy machining
Grade 5 Titanium (Ti-6Al-4V)
Very high strength
High fatigue resistance
Moderate corrosion resistance
Difficult machining
8. Why Mechanical Properties Matter in Engineering
Selecting the correct titanium grade ensures:
✔ Structural safety
✔ Cost efficiency
✔ Long service life
✔ Optimal performance
Incorrect selection may lead to:
Material failure
Over-engineering
Increased cost
9. Applications Based on Mechanical Properties
High Strength Applications (Grade 5)
Aerospace structures
Medical implants
CNC precision parts
High-performance fasteners
Corrosion-Focused Applications (Grade 2)
Marine equipment
Chemical processing systems
Heat exchangers
Industrial pipelines
Why Choose RuiPros Titanium Bar Supplier
RuiPros provides:
Grade 1 Titanium Bar
Grade 2 Titanium Bar
Grade 5 Titanium Bar
ASTM B348 certified materials
CNC machining support
Advantages:
✔ Stable mechanical performance
✔ Full traceability
✔ Factory direct pricing
✔ Global export experience
✔ OEM customization available
FAQ
What is the density of titanium?
Titanium density is approximately 4.51 g/cm³.
Which titanium grade is strongest?
Grade 5 titanium has the highest strength among commonly used grades.
Why is titanium used in aerospace?
Because it offers high strength-to-weight ratio and excellent fatigue resistance.
Is titanium stronger than steel?
Titanium has higher strength-to-weight ratio, but steel can have higher absolute strength.
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For inquiries regarding our products or to request a detailed price list, please contact us. We guarantee a response within 24 business hours.
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Resource
Titanium Forging
Titanium For Aerospace
Titanium Plate AMS 4911 / AMS 4902
Titanium Round Bar AMS 2631 / AMS 4928/ AMS 4965 / AMS 6930 / AMS 6931
Titanium For Medical
CP Titanium Grade 1 / Grade 2 / Grade 3 / Grade4 ELI ASTM F67 / ISO 5832-2
Titanium Alloy Grade 5 ELI / Ti-6Al-4V ELI ASTM F136 / ISO 5832-3