Commercially pure titanium alloys contain small amounts of oxygen and iron that influence mechanical properties. Each commercial grade is produced to provide properties suited for different applications.

Grade 2 Unalloyed Ti (“Pure”) 50A alloy is the most commonly used and widely available grade of unalloyed titanium. It is non-magnetic. This alloy has been approved for sour service use under the NACE MR-01-75 Standard.

Grade 2 is widely used because it combines excellent formability and moderate strength with superior corrosion resistance. This combination of properties makes CP Grade 2 titanium a candidate for a large variety of chemical and marine as well as aerospace and medical applications.

Titanium Grade 2  UNS R50400, Of the four commercially pure (C.P.) titanium grades, Grade 2 is typically used in applications that require superior corrosion resistance in various aggressive media. Corrosion resistance is similar between these four C.P. grades but mechanical properties vary along with varying oxygen and iron contents.

Typical applications for the “C.P.” grades include chemical process, petroleum refining, biomedical as well as heat exchangers in an array of different applications. Continuous service temperatures can reach up to 800°F with occasional, intermittent service at 1000°F.

Titanium’s C.P. grades corrosion resistance comes from a strongly adherent, stable, protective oxide film, which forms in the presence of oxygen. This film makes the commercially pure titanium grades resistant to most oxidizing, neutral and inhibited reducing as well as mildly reducing environments. Strong reducing media may cause heavy corrosion.