Metrode Ultramet-B347 description: Used to weld titanium and niobium stabilised 18/8 stainless steel types 321 and 347. Also suitable for unstabilised grades such as 304/304L. Service temperatures are typically -100C to about 400C. Applications are similar to 308L (B-30) and include food, brewery, pharmaceutical equipment, architectural and general fabrication, and nuclear engineering. The 347 consumables covered here are generally not suitable for service in elevated temperature structural applications where 0.04-0.08% carbon is specified for creep resistance, see data sheets C-11 and C-12. For cryogenic applications requiring >0.38mm (15mils) charpy lateral expansion at –196C, use unstabilised weld metal with low carbon and controlled ferrite (B-30).