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Titanium is a refractory metal that has lots of properties that are useful for many industries. Today, the aerospace industry is the industry making the highest use of titanium alloys as they have favorable properties and features. Aerospace applications use 80% of the titanium produced while the rest of the 20% is used in other industries.

Summary of Titanium Properties - Titanium has the atomic symbol Ti and atomic number 22. Its element category is transition metal, density is 4.506/cm3, moh's hardness is 6, melting point is 3038°F (1670°C) and boiling point is 5949°F (3287°C).

Titanium Alloys Strength - Material strength is the ability of a metal to withstand the applied load without failure or any other type of plastic deformation. Materials’ strength is calculated by considering the relationship between the applied load to the material and the resulting distortion or dimension change. Commercially pure titanium has the ultimate tensile strength of about 340 MPa and yield strength of around 300 MPa. Grade 5 titanium alloy named Ti-6Al-4V has the ultimate tensile strength of about 1170 MPa and yield strength of 1100 MPa approx.

Titanium Alloys Hardness – In the Rockwell scale, commercially pure titanium scores 80 HRB and Grade 5 titanium alloy Ti-6Al-4V scores 41 HRC. Rockwell test is the most common metal hardness test and it is more popular because it displays the hardness values directly. Rockwell hardness tester measures the penetration depth of an indenter in large load (major load) and the depth of penetration made by preload (minor load). The minor load forms a zero position and the major load is applied and removed while holding on to the minor load. Rockwell hardness number is displayed by considering the difference between the penetration depth before and after applying the large load. That is, penetration depth and hardness are inversely proportional so calculating one will help calculate another. The resulting number is dimensionless and notated as HRA, HRB, HRC, etc., in which the last letter is the respective Rockwell scale.

Titanium Alloys Melting Point - The melting point of commercially pure titanium is 1660°C approx. While the melting point of the Grade 5 titanium alloy Ti-6Al-4V is 1660°C approx. Melting is a physical process resulting in substance change from solid to liquid. Melting point is the point at which a substance changes from solid to liquid and melting point is also referred to the state where solids and liquids exist in equilibrium.

Titanium Alloys Thermal Conductivity - Commercially pure titanium has the thermal conductivity of 16 W/(m. K). While, the Grade 5 titanium alloy named Ti-6Al-4V has 6.7 W/(m. K). Thermal conductivity is the property used to measure heat transfer features of any solid material. It measures the substance’s ability to transfer heat by material. Titanium alloy AMS 4911 is one of the top examples of better thermal conductivity titanium alloy.

Conclusion: Titanium alloys are perfect for aerospace applications as they will give you multiple benefits through their favorable properties. So, you should choose the most suitable alloy for your specific application. Identify your needs and consult with experts to decide on the right titanium alloy. You are also recommended to choose the right supplier so that you get the highest quality product. Want to get the best quality product at competitive prices? Select FlightMetals as your go-to supplier of titanium products like AMS 4904, AMS 4965, AMS 4919, AMS 6930, AMS 4911, Titanium 6242, and AMS 6931.