It has a chemical composition of 6% aluminum, 4% vanadium, 0.25% (maximum) iron, 0.2% (maximum) oxygen, and the remainder titanium.
It is significantly stronger than commercially pure titanium (grades 1-4) while having the same stiffness and thermal properties (excluding thermal conductivity, which is about 60% lower in Grade 5 Ti than in CP Ti)
Among its many advantages, it is heat treatable. This grade is an excellent combination of strength, corrosion resistance, weld, and fabricability.
This alpha-beta alloy is the workhorse alloy of the titanium industry. The alloy is fully heat treatable in section sizes up to 15mm and is used up to approximately 400°C (750°F). Since it is the most commonly used alloy – over 70% of all alloy grades melted are a sub-grade of Ti6Al4V, its uses span many aerospace airframes and engine component uses and also major non-aerospace applications in the marine, offshore and power generation industries in particular.
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Chemical composition of Titanium Gr 5
| Ti | Al | V | H |
| % | % | % | max % |
| 88.74-91.0 | 5.5-6.75 | 3.5-4.5 | 0.015 |
Characteristics of Titanium Gr 5
| Temperature Range | High temperature range/Material for wet corrosion |
| Density | 4.43 g/cm³ |
| Melting Range | 1650°C |
| ISO-V notch impact toughness at -59°C | across < J/cm² |
| lengthwise < J/cm² | |
| Ultimate Tensile Strength | 135 KSI (950 MPa) |
| Yield Strength (0.2% offset) | 125 KSI (880 MPa) |
| Elongation | 15% |
| Hardness | Rc 34 |
Main areas of application for Gr 5 titanium
Titanium grade 5 is once again the most commonly used alloy in many fields. Thus, for example:
- Aerospace and aircraft
- Sports equipment
- Medical industry
- Chemical industry
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