Titanium can be tungsten arc welded using similar techniques to those used for welding stainless steels. Protection needs to be provided to titanium weldments on cooling down to about 800°F (427°C) as well as to the molten weld puddle in order to prevent contamination by air.

AWS A5.16 ERTi-2 (Titanium Grade 2)

Commercially pure titanium used for welding pure titanium and titanium alloys with similar chemical composition.

AWS A5.16 ERTi-2 Typical Chemical Composition [%]
0.03 max0.08-0.0160.015 max0.008 max0.12 maxRem

AWS A5.16 ERTi-5 (Titanium Grade 5 / Ti6Al4V)

Heat treatable titanium alloy with higher strength and good corrosion resistance used for aircraft components.

AWS A5.16 ERTi-5 Typical Chemical Composition [%]
0.05 max0.12-0.200.03 max0.015 max0.22 max5.5-6.753.5-4.5Rem

AWS A5.16 ERTi-7 (Titanium Grade 7)

Titanium alloy with the same mechanical properties as Grade 2.  0.12 % wt. addition of palladium improves corrosion resistance.

AWS A5.16 ERTi-7 Typical Chemical Composition [%]
0.03 max0.08-0.160.015 max0.008 max0.12 max0.12-0.25Rem

TIG/MIG wire sizes availiable:

0,8 mm0,9 mm1,2 mm1,6 mm2,4 mm3,2 mm