Titanium Gr. 7 3.7235 – UNS R52400 – Ti2Pd

Titanium equipment is often used in severe corrosive environments encountered in the chemical processing industries. Titanium has been considered an exotic wonder metal by many people. This was particularly true in reference to castings. However, increasing demands and rapidly advancing technology have permitted titanium castings to be commercially available at an economical cost. The combination of its cost, strength, corrosion resistance, and service life in very demanding corrosive environments suggest its selection in applications where titanium castings have never been considered in the past. Grade 7 is mechanically and physically equivalent to Grade 2, except with the adition of the interstitial element Palladium. Grade 7 possesses excellent weldability and is the most corrosion resistance of all Titanium alloys.


Titanium Gr. 7
seamless-pipe Seamless Tubes

welded-pipe Welded Tubes
plate Plates
bar Bars  stock
flanges Flanges
accessories Fittings


  • Airframe components (up to 600ºC)
  • Cryogenic vessels
  • Heat exchangers
  • Condensor tubing
  • Surgical hardware (implants for the human body)

General characteristics

The outstandings mechanical and physical properties of titanium, combined with its unexpected corrosion resistance in many environments
makes it an excellent choice for particularly aggressive environments like wet chlorine, chlorine dioxide, sodium and calcium hypochlorite,
chloride salt solutions, nitric acid and chromic acid. It also has exceptional resistance to most chlorinated hydrocarbons and organic acids
except oxalic and formic acids. The corrosion rate of titanium in formic acid may be reduced significantly by the adition of an oxidizing salt
such as ferric or cupric chloride.

Technical information



Titanium Gr. 7 – UNS R52400
Product Norm ASTM
Seamless Tubes B-338 B-861
Welded Tubes B-862
Plates B-265
Bars B-348
Flanges B-381
Fittings B-363

Chemical specifications %


Titanium Gr. 7 – UNS R52400
Element Simbol Maximum
Carbon C 0,08
Oxygen O 0,25
Hydrogen H 0,015
Titanium Ti Balance
Palladium Pd 0,12-0,25
Nitrogen N 0,03
Iron Fe 0,30

Mechanical Properties

Titanium Gr. 7 – UNS R52400
Norm Rm min. Rp 0,2% min. E4d min.% Z min.% T.I.(J) HR B HB
B-265 50 (345) 40 (275) 20
B-338 50 (345) 40 (275) 20
B-348 50 (345) 40 (275) 20 30
B-381 50 (345) 40 (275) 20 30
B-861 50 (345) 40 (275) 20