Titanium alloys

Titanium is an extraordinary material, which is available on the market in various alloys. The most commonly used titanium alloys, however, are titanium grade 2 and titanium grade 5, which are used to make titanium screws and turned parts, among other things.

Titanium is stronger than steel and almost as light as aluminum. Here is an overview of the specific weight.

The following table shows the titanium strength for the most common titanium classes.

Where is titanium used? Almost all common standard parts such as screws and nuts are available in titanium. But also special parts like turned parts and barrel parts can be made of titanium without any problems.

The extreme properties of titanium, such as high corrosion resistance, high tensile strength, high yield strength and low weight, are often decisive and justify the higher price.

Titanium is frequently used in the following areas:

• Motorsports
• Bicycle construction
• Industry and medical technology
• Vehicle construction
• Aircraft construction
• Model making (drones, RC cars,...)
• Aerospace

The production of titanium is possible only through high effort and the production requires a lot of energy. Due to this circumstance, the manufacturing costs are very high. Also, the processing is usually more difficult than other metals.

Titanium is very resistant to corrosion, as it reacts with air and forms an extremely durable oxide layer. Due to the high strength at low weight, it is an added value for many applications to use titanium.

Titanium special features in the overview:

• High strength
• Low weight
• Extremely corrosion resistant
• Non-magnetic
• Biocompatible (medical technology)

Titanium Grade 5 is particularly noteworthy as it is the most widely used titanium alloy on the market. With a yield strength of min. 635 N / mm² and tensile strength of min. 830 N / mm², and at the same time low weight, it combines the almost perfect properties for many applications.

Especially titanium screws and titanium nuts made of this alloy are widely used in the market.

Titanium Grade 2 has good mechanical properties and is the standard material for plant engineering, medical technology, aerospace, motor sports and much more. Due to its high corrosion resistance, it also has a high resistance to salt water, among other things. For all applications where maximum yield strength and tensile strength are not required, titanium grade 2 is the cheaper and better choice.

The small table below illustrates the big difference between titanium grade 2 vs. grade 5. Titanium grade 5 is much harder and tougher than titanium grade 2 and therefore clearly the better material for most applications. Especially for titanium screws the difference is very big. There are also big differences in price, with Grade 5 clearly being the better choice from a technical point of view.