309 stainless steel welding alloy is used for welding similar alloys in wrought or cast form. It is also occasionally used for welding 18-8 base metals when severe corrosion conditions exist, and, at times welding dissimilar steels. 308 is available for GMAW (MIG), GTAW (TIG), FCAW and SMAW welding processes.
Features
- Stainless steel 309 welding wire/rod/electrode/flux-cored welds 304 and similar base metals in wrought or cast form where severe corrosion conditions may exist
- Sometimes welds dissimilar steels
- 86,000 psi tensile strength (as welded)
- 57,000 psi yield strength (as welded)
- 47% elongation; 68% reduction of area (as welded)
- 85 HRB Rockwell B hardness (as welded)
- 160 HB Brinell hardness (as welded)
- 105 ft./lb. @ room temperature Charpy V (as welded)
- Conforms to ANSI/AWS A5.9 & ASME SFA 5.9 ER 309
Typical Applications
- General fabrication
- Joining dissimilar metals
Welding Positions
- All
Shielding Gas
- 98% Ar/ 2% O2
