When choosing the right titanium for your project, knowing which grade to choose can be overwhelming. Two common grades are Grade 23 Titanium and Grade 5 Titanium. Both are alloyed with aluminium and vanadium, but what sets them apart? In this guide, we will dive into the key differences between these two grades of titanium to help you make an informed decision for your next project.
Difference Between Grade 23 Titanium and Grade 5
Composition and Properties
Grade 23 Titanium is also known as Ti6AL4V ELI (Extra Low Interstitial) and has a higher purity than Grade 5 Titanium. This higher purity makes it stronger, more biocompatible, and more corrosion-resistant. Grade 5 Titanium, also known as Ti6AL4V, is stronger than Grade 23 and is more commonly used in aerospace, automotive, and medical industries. Both grades have high strength-to-weight ratios, making them popular choices for applications where weight is a concern.
Application
Grade 23 Titanium is frequently used in biomedical and dental implants and jewellery because of its biocompatibility with the human body. Grade 5 Titanium, on the other hand, is commonly used in aerospace and marine industries due to its high strength and corrosion resistance. It can also be found in race cars, bicycles, and other high-performance equipment.
Machinability
Grade 23 Titanium is more difficult to machine than Grade 5 Titanium due to its higher purity. However, proper technique and machinery can still be machined with precision. Grade 5 Titanium, on the other hand, is easier to machine, making it a preferred choice for many industrial applications.
Availability and Cost
Grade 5 Titanium is more widely available and therefore tends to be less expensive than Grade 23 Titanium. Grade 23 Titanium can be harder to source, leading to increased costs.
Weldability
Grade 23 and Grade 5 Titanium are weldable, but Grade 23 may be more difficult due to its higher purity. However, both grades can be successfully welded with proper technique and equipment.
Conclusion
Choosing the right titanium grade for your project depends on its intended application. Grade 23 Titanium is a great option for biocompatible materials or in applications where corrosion resistance is important. In contrast, Grade 5 Titanium offers higher strength and is commonly used in high-performance industrial applications. Consider the machinability, availability, and cost, as all play a role in choosing the right titanium grade for your project. With this guide, you now clearly understand the differences between Grade 23 and Grade 5 Titanium and can make an informed decision for your next project.
