Washington Alloy, TM 2209 07, Welding Wire, 5/32 in; 36 in, Duplex Stainless Steel, ER2209

ER2209 is a stainless steel alloy wire designed for welding AISI316 stabilized and 316Ti or 318 austenitic stainless steel. ER2209 produces duplex stainless steel weld deposits with a nearly balanced austenite-ferrite microstructure. ER2209 weld deposits exhibit high tensile strength, improved resistance to stress corrosion cracking, and greater resistance to pitting than conventional austenitic grades of stainless steel. ER2209 is designed for welding 22% chromium duplex stainless steels such as ASMEASTM A-182, A-276, A-479, A-789, A- 790, and A-890. 3RE60®, 44LN® and Ferralium 255® are proprietary duplex stainless steel base metals in the 22% Cr category available commercially that can be joined successfully with ER2209. Nonproprietary grades 2205 and 2304 duplex stainless steels are also readily available and can be joined successfully with ER2209.

• Wire Diameter: 5/32 in.
• Wire Length: 36 in
• Material: Duplex Stainless Steel
• Tensile Strength: 100,000 psi min
• Elongation: 20% min
• Pitting Resistance Equivalent Number: >35
• Chromium Content: 21.5-23.5%
• Nickel Content: 7.5-9.5%
• Molybdenum Content: 2.5-3.5%
• Carbon Content: 0.03% max
• Manganese Content: 0.50-2.00%
• Silicon Content: 0.90% max
• Copper Content: 0.75% max
• Phosphorus Content: 0.03% max
• Sulfur Content: 0.03% max
• Nitrogen Content: 0.08-0.20%
• AWS A5.9 Class: ER2209

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