Titanium Grade 5 (TI-6AL-4V) — CHEMICAL COMPOSITION
6% Aluminum (Al)
4% Vanadium (V)
~90% Titanium (Ti)
Standard composition (ASTM F136 / ISO 5832-3)
Element Percentage
Titanium (Ti) Balance (~88–91%)
Aluminum (Al) 5.5 – 6.75%
Vanadium (V) 3.5 – 4.5%
Iron (Fe) ≤ 0.25%
Oxygen (O) ≤ 0.13%
Carbon (C) ≤ 0.08%
Nitrogen (N) ≤ 0.05%
Hydrogen (H) ≤ 0.0125%
This is the standard Alloy used for implant abutments and frameworks
Stronger than pure Titanium (Grade 2 / 4)
High fatigue resistance + good biocompatibility
Pure Titanium is significantly softer than Grade 5 (Ti-6Al-4V)
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Comparison
Property Pure Titanium (Grade 2 / 4) Grade 5 (Ti-6Al-4V)
Strength Lower Much higher (≈2x)
Hardness Softer Harder
Flex resistance Lower Higher
Machinability Easier to cut Harder to mill
Wear resistance Lower Higher
Tensile Strength 350 Mpa 900 Mpa