Class: ERTi-3
AWS: A5.16

C = 0.03 max
O = 0.10-0.15
H = 0.008 max
N = 0.02 max
Fe = 0.20 max

This alloy is commonly referred to as a commercially pure titanium widely used in industrial applications. Can use all automatic weld processes. This grade also has some uses in the aerospace industry. Can be used in seawater, heat exchanges, piping systems. Titanium is a reactive metal that is sensitive to embrittlement by oxygen, nitrogen and hydrogen at temperatures above 500F. This can be provided by shielding the metal with high purity inert gas or in a chamber. Cleanliness of the joint is a major factorin producing porosity free welds. Protection of the wire at all times is required to assure cleanliness. Can be fusion welded to Zirconium, Tantalum, Nobium and Vanadium. Should not be fusion welded to Copper, Iron, Nickel, and Aluminum, as it will produce extremely brittle welds.