Here are the main advantages and disadvantages of aluminum screws compared to titanium screws, according to the information provided: Advantages of aluminum screws:
- Much lighter than titanium or steel screws (up to 70% lighter than steel).
- They can be anodized in many bright colors with a beautiful metallic effect.
- Corrosion resistant.
- Cheaper than titanium screws.
Disadvantages of aluminum screws:
- Mechanical resistance lower than titanium, not suitable for highly stressed or safety-critical assemblies.
- Less rigid and more flexible than titanium.
- More limited operating temperature range than titanium (approximately -30°C to 100°C).
- They can discolor and become brittle under the effect of UV rays.
Conversely, titanium screws offer:
- Very high mechanical resistance, superior to aluminum and close to high-strength steel.
- Excellent corrosion resistance, including in aggressive environments.
- Good properties at very high temperatures.
- They are very lightweight relative to their strength (45% lighter than steel).
But titanium screws are significantly more expensive than aluminum ones.
In summary, aluminium is a good choice for low-stress applications where lightness and aesthetics are paramount, while titanium is preferred for demanding applications requiring mechanical and chemical resistance despite its high price.
