Titanium TIG Weld Wire

Commercially pure titanium tubing welds cleanly only when the filler going into the puddle matches it, and that is the job of Vibrant Performance part 29961. Vibrant lists its titanium filler rod as ERTi-1, the same commercially pure family as the CP1 grade straight tubing, bends and transitions in its titanium exhaust catalog. Each rod is 0.063 in (1.6mm) thick and roughly 39 in long, packed in a 1 lb box, so a fabricator can stock enough for a full turbo-back system without buying a large spool.

Choosing the 1/16 in diameter

A 0.063 in rod suits the wall thickness found on most titanium exhaust and intake tubing, where a thinner rod has to be fed constantly and a 3/32 in rod tends to flood the joint. Vibrant also offers a 0.035 in titanium rod as part 29911 for very light-wall tube and small tack welds, and plenty of shops keep both sizes on the bench. For merge collectors, V-band flanges and slip joints on mid-size tubing, the 1/16 in rod is the usual all-rounder.

Shielding and prep notes

Hot titanium absorbs oxygen and nitrogen quickly, so the filler is only part of the job. Plan on pure argon shielding, a back purge inside the tube, and a trailing cup or long post-flow so the bead cools to bright silver or light straw instead of blue or gray. Wipe each rod with acetone and handle it with clean gloves, because skin oil and shop dust contaminate the weld just as easily as a dirty joint does. The product listing carries a 5 year limited warranty from Vibrant Performance.

Frequently Asked Questions

What grade of titanium is this filler rod?

Vibrant sells its titanium filler as ERTi-1, a commercially pure grade. That lines up with the CP1 grade titanium tubing Vibrant offers for exhaust and intake fabrication, so the rod and the tube share the same chemistry.

How much wire is in the box?

Part 29961 is a 1 lb box of 0.063 in (1.6mm) rods, each about 39 in long. Vibrant also packs its filler rod in 3 lb boxes for shops that weld titanium every week.

Can I use it to join titanium to a stainless exhaust?

No. Titanium and stainless steel cannot be fusion welded to each other, so a mixed system needs a clamp or V-band joint between the two metals. For stainless to stainless work, Vibrant sells separate stainless filler rods such as ER347L.

Fitment: Universal. Confirm the sizes and thread types listed above against your application before ordering.