Domestic Market
ER 2209 is a duplex stainless steel filler wire designed for welding duplex stainless steels used in pipe and plate fabrication. This ER2209 filler wire offers excellent resistance to pitting and stress-corrosion cracking, especially in high-chloride environments. It is suitable for both MIG and TIG welding processes and helps achieve a balanced weld structure with reliable mechanical strength and corrosion resistance.
Key Features and Benefits of Superon ER 2209
Superon ER2209 welding wire is engineered to meet the demanding requirements of duplex stainless steel welding in industrial applications.
Key features and benefits include:
High Corrosion Resistance: The weld metal offers strong resistance to pitting and stress corrosion cracking, making it suitable for aggressive chloride-rich environments.
Optimised Weld Metal Structure: Nickel content is adjusted to overmatch the parent material by 2 to 3 percent, helping maintain a proper balance of austenite and ferrite in the as-welded condition.
Strong Mechanical Properties: Provides high yield and tensile strength, supporting durable and long-lasting weld joints.
Mig And Tig Process Compatibility: Available as SUPERMIG 2209 for MIG welding and SUPERTIG 2209 for TIG welding, offering flexibility across fabrication needs.
Stable Arc Performance: Ensures smooth metal transfer and consistent weld bead formation for improved productivity.
Multiple Finish Options: MIG wires are available in bright, matte, and semi-bright or matte finishes to suit different welding preferences.
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Wide Size Range: Supports various wire diameters for both thin- and thick-section welding applications.
These features make ER 2209 a dependable choice for duplex stainless steel fabrication work.
Specifications of ER 2209
The table below outlines the mechanical properties and welding conditions for ER2209 filler wire.
| Product Name | AWS SFA Classification | Yield Strength N/mm² | Tensile Strength N/mm² | Elongation A5 Percent | Impact Energy ISO V J at 20 C | Welding Conditions |
| SUPERMIG 2209 | ER 2209 | ≥ 480 | ≥ 690 | ≥ 22 | ≥ 50 | DC positive |
| SUPERTIG 2209 | ER 2209 | ≥ 480 | ≥ 690 | ≥ 22 | ≥ 50 | DC negative |
These specifications ensure consistent performance in demanding welding conditions.
Properties of ER 2209
Superon er2209 welding wire is designed to provide reliable and repeatable welding results.
| Property | Description |
| Corrosion Resistance | High resistance to pitting and stress corrosion cracking |
| Mechanical Strength | High yield and tensile strength for durable joints |
| Microstructure Balance | Optimised austenite and ferrite balance after welding |
| Arc Stability | Smooth and stable arc during welding |
| Weld Appearance | Uniform bead profile with good fusion |
| Process Flexibility | Suitable for MIG and TIG welding processes |
| Environmental Suitability | Performs well in chloride-rich environments |
These properties support consistent weld quality in critical duplex stainless steel applications.
Applications of ER 2209
ER 2209 is commonly used in industries where duplex stainless steels are selected for strength and corrosion resistance.
Typical applications include:
Fabrication of duplex stainless steel pipes
Welding of duplex stainless steel plates
Chemical and process industry equipment
Offshore and marine structures
Oil and gas piping systems
Desalination and water treatment plants
Its performance makes ER2209 suitable for both fabrication and maintenance work.
Related Products
For complete duplex stainless steel welding solutions, the following Superon Technik products are commonly used alongside ER2209 welding wire:
Duplex stainless steel stick electrodes
Stainless steel flux-cored wires
Welding auxiliaries, Buffing compounds and industrial sprays
Abrasives for weld cleaning and finishing
2209 ,2594, 304L, 307, 307Si ,308/308H, 308L, 308Si/308LSi
These related products help support efficient and high-quality welding operations.
