Titanium Grade
The difference between titanium grade 2 and 5
Pure titanium with high corrosion resistance
Titanium grade 2 is so-called "commercially pure titanium" (CP titanium) with a purity of around 99%. It is characterized by its excellent corrosion resistance, hypoallergenicity and relative ease of processing compared to grade 5.
High-strength titanium alloy for demanding applications
Grade 5 titanium (also known as Ti-6Al-4V) is an alloy consisting of around 90% titanium, 6% aluminum and 4% vanadium. This combination makes the material significantly stronger and more resistant to scratches than grade 2 titanium. Due to these properties, it is often used in the aerospace and motorsport industries.
Conclusion
Titanium is an exceptional material for wristwatches, which has its advantages in both grade 2 and grade 5. While grade 2 scores points above all for its purity and corrosion resistance, grade 5 offers greater strength and resistance. Depending on the intended use and personal preference, it is worth paying attention to the alloy used when buying a titanium watch.The disadvantages of grade 2 can be offset cost-effectively by surface hardening.