WeldingCity 10-pcs Titanium ERTi-2 (Grade-2) Commercial Pure TIG Welding Rods 1/16"x36" Titanium ERTi-2 (Grade-2) Commercial Pure TIG Welding Rods 1/16"x36". 10-pcs Package. AWS Spec. A5.16, Class ERTi-2 Acid-pickled surface to fully remove contaminants. You get 10-pcs of Titanium ERTi-2 (Grade-2) TIG welding rods 1/16"x36" at this price. Please provide a US Postal Service (USPS) deliverable address.