Tig Welding Wire
|AWS||AWS A5.9 ER2209|
|Min Tensile||550 N/mm²|
|Min Yield Strength||450N/mm²|
|Heat Input||0.5-2.5 kj/mm|
|Scaling Temperature||Approx. 850°C (air).|
|Corrosion Resistance||Very good resistance to pitting and stress corrosion cracking in chloride containing environments.|
ER2209 provides a ferritic-austenitic weldament that combines many of the good properties of both ferritic and austenitic stainless steels.
Welding without filler metal(i.e. TIG dressing) is not allowed since the ferrite content will increase drastically and both mechanical and corrosion properties will be negatively affected. Ar (99.95%). Ar with addition of up to 2% nitrogen (N2) is advantageous and will have a positive affecton both mechanical and corrosion properties. Gas flow rate 4-8 l/min.