316Ti Stainless Steel: Titanium-Stabilized for Chloride Resistance

 

What defines 316Ti's chemical composition?

It contains 16-18% chromium, 10-14% nickel, 2-3% molybdenum, 0.10-0.20% titanium, and carbon ≤0.08%. Titanium binds with carbon, preventing chromium carbide formation in weld zones, enhancing post-weld corrosion resistance.

 

How does 316Ti perform in corrosive environments?

316Ti offers excellent resistance to chloride-induced pitting and crevice corrosion, similar to 316L. Its titanium stabilization ensures it resists intergranular corrosion after welding, outperforming non-stabilized 316 in welded structures.

 

What are its mechanical properties and formability?

It has a tensile strength of around 550 MPa and good ductility (elongation up to 40%). It's highly formable for bending and rolling, with excellent weldability using standard techniques-no post-weld heat treatment needed.

 

How does 316Ti compare to 316L in applications?

316Ti is preferred for high-temperature welded parts where 316L might suffer from intergranular corrosion. 316L suits lower-temperature applications where cost is a factor.

 

Where is 316Ti commonly used?

Found in chemical processing pipes, offshore oil rig components, and desalination plants. It's also used in heat exchangers and pharmaceutical equipment with welded joints.