Difference between Titanium Grade 5 and Grade 2 Sheets

Titanium Grade 2 Sheet

While Grade 2 and Grade 5 are both corrosive resistant, sturdy, and light, there are still some notable variances that could have an impact on the outcome. It’s crucial to take into account the size of the titanium pieces, how the metal will be used, and the environment it will be exposed to when selecting the titanium grade. Now let’s understand the fundamental differences between titanium grades 5 and 2.

Titanium Grade 5:

The most often used grade of titanium is Ti 6Al-4V0, or Titanium Grade 5. It is frequently offered in the annealed state and is easily heat treated to boost strength, making it suitable for a variety of applications. Ti 6Al-4V has a wide range of acceptable qualities as a general-purpose alloy between -210°C and 400°C. An alpha-beta (-) alloy is titanium grade 5 (Ti 6Al-4V). As a result, sections that are less than 100 mm thick can be heat treated to provide medium-high strength. Sections larger than 25 mm may not fully acquire the required characteristics due to the limited hardenability. Ti 6Al-4V has good hot-forming and welding properties when used with matched or ELI filler wire. However, the amount of cold forming is minimal. Ti 6Al-4V, also known as Grade 5 titanium, is the most widely used titanium alloy and is referred to as the “workhorse” of titanium alloys. It makes up half of the world’s total titanium use. Its numerous advantages are what make it useful. Ti 6Al-4V could benefit from heat treatment to make it more robust. At service temperatures as high as 600° F, it can be employed in welded construction. This alloy offers good formability, strong corrosion resistance, and high strength at a low weight. Due to its versatility, Ti 6AI-4V is the ideal alloy for usage in a variety of sectors, including the chemical processing, aerospace, medical, and marine industries. It can be used to make a variety of technical products, including:

  • Aviation turbines
  • Components of engines
  • The structural elements of aircraft
  • Aviation fasteners
  • Superior automatic components
  • Applications for the sea
  • Sporting goods


Titanium Grade 2:

A commercially pure alpha alloy is titanium Grade 2, often known as titanium CP3. Titanium Grade 2 Sheet has exceptional corrosion resistance against a variety of aggressive media, although not as strong as Ti 6Al-4V. For instance, titanium grade 2 is used to construct sheets, fasteners, and mixers for chlorine dioxide in modern bleach plants because it is almost impervious to wet chlorine at temperatures between 10 and 80 degrees Celsius (0.02 mpy or 0.001 mm/y). The exceptional corrosion resistance of titanium grade 2 is specified in a variety of conditions, such as those containing calcium chloride, cupric chloride, ferric chloride, acetic acid in varying concentrations, high-temperature seawater, most organic media, and more. Other factors, such as temperature, pH level, and flow rate, however, could significantly change this material’s characteristics, such as its susceptibility to stress corrosion cracking and crevice corrosion. When water corrosion resistance and/or formability are necessary, titanium grade 2 is typically chosen instead of titanium grade 5 (Ti 6Al-4V). When corrosion resistance is required on the surface at temperatures up to 200°C in a normal environment, titanium grade 2 and other commercially pure grades are also a common choice for lining material. The exterior assemblies are frequently made of more affordable, stronger steel. One significant use is the lining of chimney stacks on coal-fired power plants that have undergone FGD System upgrades (Flue Gas Desulphurisation plants) Due to its numerous applications and widespread availability, grade 2 titanium is referred to as the “workhorse” of the commercially pure titanium industry. This grade has good strength, ductility, formability, and weldability. Due to this, Grade 2 titanium sheets are the best option in a wide range of applications:

  • Architecture
  • Power production
  • Medical sector
  • Processing hydrocarbons
  • Maritime sector
  • Aerial skin
  • Desalination
  • Chemical transformation
  • Chlorate production

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