Learn where ER2209 duplex stainless welding wire is used, including 2205 piping, vessels, offshore equipment, and process fabrication.
ER2209 is a duplex stainless steel filler commonly used for welding 2205 and related duplex base materials.
Typical Applications
- Chemical-processing equipment
- Offshore structures
- Oil and gas piping
- Pressure vessels
- Heat exchangers
- Pulp and paper equipment
- Desalination systems
- Duplex stainless tanks
Why Is ER2209 Overalloyed?
ER2209 normally contains more nickel than the matching base material to help produce a suitable austenite-ferrite balance after welding.
What Controls Matter?
- Heat input
- Interpass temperature
- Shielding gas
- Nitrogen loss
- Cooling rate
- Joint cleanliness
- Ferrite balance
- Corrosion requirements
Can ER2209 Weld Austenitic Stainless Steel?
It may be used in selected dissimilar joints, but the procedure and service requirements must approve it.
Dayang Welding supplies ER2209 TIG and MIG wire for duplex stainless projects.
