EXCU0000000620T - Exocor ER2209 Duplex Stainless TIG Rod 1/16" (10lb Box)

Premium ER2209 Duplex Stainless TIG Rods

The Exocor ER2209 TIG Welding Rod is a high-performance filler metal designed specifically for welding duplex stainless steels, such as the widely used 2205 grade (UNS S31803). This 1/16" (1.6mm) diameter rod comes in a convenient 10 lb box, making it an excellent choice for professional fabricators and industrial maintenance teams dealing with specialized corrosion-resistant alloys. Duplex stainless steels are known for their mixed microstructure of austenite and ferrite, which provides a unique combination of high strength and exceptional resistance to stress corrosion cracking.

When working on projects involving chemical processing equipment, offshore platforms, or pulp and paper machinery, the integrity of the weld is paramount. The ER2209 alloy is formulated with approximately 22% chromium, 9% nickel, and 3% molybdenum, enhanced with nitrogen. This composition ensures that the weld metal matches or exceeds the corrosion resistance of the base metal, particularly in environments containing chlorides where pitting can be a major concern. For Josef Gas customers requiring reliable filler metals for critical infrastructure, this rod delivers consistent feedability and clean, defect-free deposits.

Using the correct filler metal is crucial when joining duplex steels to ensure the weld zone maintains the proper phase balance. Welding with standard 300-series rods on duplex material can lead to weak joints and premature failure. The Exocor ER2209 is engineered to promote the formation of austenite in the weld metal, preventing excessive ferrite which can reduce toughness. Whether you are repairing a heat exchanger or fabricating a pressure vessel, this rod provides the mechanical properties and corrosion defense necessary for long-term durability.

Key Benefits for Fabricators:

• Corrosion Defense: Specifically designed to resist pitting and stress corrosion cracking in harsh environments.
• High Strength: Delivers weld deposits with significantly higher tensile strength than standard austenitic stainless steels.
• Versatility: Can be used to weld duplex stainless steel to itself or to join duplex steel to carbon steel.
• Quality Manufacturing: Produced by Exocor to strict tolerances for diameter and chemical composition, ensuring consistent arc stability.