Titanium Corrosion Resistance Guide

Titanium's reputation for corrosion resistance comes from a thin, stable, self-healing oxide (TiO2) film that re-forms instantly if scratched.

Where Titanium Excels

• Seawater and chlorides — essentially immune to pitting
• Oxidizing acids (e.g. nitric)
• Wet chlorine, hypochlorite, brine
• Most organic acids and many process chemicals

When to Use Palladium Grades

In hot reducing acids (e.g. HCl, H2SO4), CP titanium can corrode. Grade 7, 11 or 16 (with small Pd additions) dramatically extend the limits, as does Grade 12 (Ni-Mo).

Limits to Watch

• Dry chlorine can cause rapid attack
• Strong reducing acids without Pd alloying
• Hydrofluoric acid — attacks titanium readily

For a given fluid, temperature and concentration, we can recommend the right grade — just send your service conditions.