Weld Mold® 2209
Weld Mold 2209 is a high ferrite stainless steel material. Stainless steels welded with this alloy combine high resistance against stress, corrosion, cracking and pitting along with increased tensile strength. The weld metal has a duplex micro-structure consisting of an austenite-ferrite matrix.
Applications
Mostly used for welding duplex and super duplex stainless steels that contain approximately 22% chromium. 2209 is also used for joining and overlay of steel used in chloride environments such as oil & gas industry, chemical processing and brackish water applications.
Procedure
Clean all weld areas of any foreign matter. To avoid HAZ problems such as loss of corrosion resistance and toughness or of post-weld cracking, the welding procedure should focus on minimizing total time at temperature in the “red hot” range for the whole procedure rather than managing the heat input for any one pass.
FCAW - DC+
75%Ar 25% CO2 or
(spray) 100% CO2
GTAW - DC-
100%Ar
Technical Data
- Available Processes: FCAW and GTAW
- Alloy Type: Cr, Ni, Mo, N, Cu Alloy
- Tensile Strength: 100,000 psi
- Elongation: 20%
- AWS: A5.4 Class E2209
