ERTi-2 (Commercially Pure) Titanium is a TIG, MIG and submerged arc filler metal used for welding commercial pure titanium alloys commonly found in applications requiring high temperature resistance and resistance to chemical reagents. Although there are four grades of Commercial Pure Titanium filler metals, C.P. Grade 2 (ERTi-2) is the most popular because of its good balance of strength, formability and weldability. The most common applications of ERTi-2 are the aircraft industry, where tensile strength and weight ratios are very critical. Other uses would include cryogenic and petrochemical applications such as chemical process heat exchangers, pressure vessels and piping systems, pulp bleaching systems, electro chemical and chemical storage tanks. AWS Specification AWS A5.16/A5.16M:2007 AWS Classification ERTi-2 Welding Current DCEP Typical Wire Chemistry C 0.03 O 0.08 - 0.16 H 0.008 N 0.015 Fe 0.12 Ti REM Typical Mechanical Properties (As Welded) Yield Strength, ksi 40 Tensile Strength, ksi 50 Elongation%, min 20 Available Diameters and suggested Operating Range in Amps 1/16" 180 3/32" 190 1/8" 205