MMA rutile flux coated 347 electrode on high purity 304L core wire. Ultramet 347H has all the benefits of an advanced rutile flux design, including all-positional fixed pipework welding with the 2.5/3.2mm diameter electrodes. Recovery is about 110% with respect to the core wire, and 65% with respect to the whole electrode.
Applications
Used to weld titanium and niobium stabilised 18/8 high carbon stainless steel types 321H and 347H. Applications include catalytic crackers (cat crackers), cyclones, transfer lines, furnace parts, steam piping, superheater headers, some gas and steam turbine components, used in petrochemical, chemical process plants and power generation industries. Note that the alloy 16.8.2 (data sheet C-12) was developed as a more ductile alternative to 347H consumables to avoid in-service HAZ failure in 347H base material of >12mm thickness. For this reason, when joining thicker section 321H/347H the 16.8.2 consumables are considered a preferable alternative.
Specification
AWS A5.4: E347-16
BS EN 1600: E19 9 Nb R32
BS 2926: 19.9.Nb.R
DIN 8556: E 19 9 Nb R 23