Class: ERTi-5ELI
AWS: A5.16

C = 0.03 max
O = 0.10 max
H = 0.005 max
N = 0.012 max
Al = 5.5-6.5
Va = 3.5-4.5
Fe = 0.15 max
Y = 0.005 max

Purer version of ERTi-5 (Extra low Interstitial) content, (which is lower oxygen content). Primary use in surgical implants, cryogenic vessels, and airframe components. Use all automatic weld processes. 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.
Note: AWS previously classified this material as ERTi-6Al-4V-1