Dipti Metal Industries is a Leading ER2209 TIG Rod Manufacturer and Duplex Stainless Steel Welding Wire ER2209 TIG Rod Exporter in Mumbai, India, specializing in high-performance AWS A5.9 ER2209 GTAW filler metal under the DIPTIINOX® brand. This duplex alloy is essential for welding Duplex Stainless Steel (e.g., Duplex 2205 - UNS S31803/S32205) and for joining them to carbon/low-alloy steels. The high alloy content, specifically 22% Chromium, 8% Nickel, 3% Molybdenum, and critical Nitrogen addition (0.08% to 0.20%), is engineered to achieve a perfect austenite/ferrite microstructure balance in the weld deposit. This ensures superior mechanical properties (high tensile strength) and exceptional resistance to pitting corrosion and Stress Corrosion Cracking (SCC), making it ideal for the most challenging chemical, marine, and oil & gas environments. We guarantee full conformance to AWS A5.9 for critical industrial applications globally.
The AWS A5.9 ER2209 Filler Metal is a critically alloyed consumable specifically designed to match the properties of Duplex 2205 stainless steel. Duplex alloys derive their strength and corrosion resistance from a balanced austenite-ferrite microstructure (typically 50/50). The challenge in welding these alloys is maintaining this balance and preventing the formation of detrimental phases like Sigma phase, which can compromise corrosion resistance and ductility. ER2209 is formulated with higher levels of Nickel and, most importantly, Nitrogen (0.08% to 0.20%) to promote the formation of austenite during the rapid cooling of the weld pool. This ensures the weld metal provides strength and corrosion resistance equal to or exceeding that of the Duplex 2205 base metal. It is available as TIG Rod (GTAW), and upon request, as MIG Wire (GMAW) and Submerged Arc Coil (SAW).
| C max | Cr | Ni | Mo | Mn | Si max | P max | S max | Cu max | N |
|---|---|---|---|---|---|---|---|---|---|
| 0.03 | 21.5 – 23.5 | 7.5 – 9.5 | 2.5 – 3.5 | 0.50 – 2.0 | 0.90 | 0.03 | 0.03 | 0.75 | 0.08 – 0.20 |
| C | Cr | Ni | Mo | Mn | Si | P | S | N |
|---|---|---|---|---|---|---|---|---|
| 0.016 | 22.40 | 8.5 | 2.91 | 1.40 | 0.45 | 0.014 | 0.017 | 0.18 |
| Yield Strength (psi) | Tensile Strength (psi) | Elongation % | Ferrite Content (Typical) |
|---|---|---|---|
| 80,500 | 105,000 | 26% | 40-60% |
Data is typical for ER2209 weld metal deposited by TIG (GTAW) using 100% Argon as the shielding gas.
Our ER2209 Filler Metal is available primarily in cut lengths for TIG (GTAW), and also in various spools for automated MIG (GMAW) processes. Proper control of heat input is critical when welding Duplex steels to maintain the ideal microstructure.
| Wire Diameter (in) | Amps (DCSP) | Volts | Shielding Gas | Note |
|---|---|---|---|---|
| .035 | 60-90 | 12-15 | Argon 100% | Parameters are dependent upon plate thickness, welding position, and critical heat input control (Tmax < 150°C). |
| .045 | 80-110 | 13-16 | ||
| 1/16 | 90-130 | 14-16 | ||
| 3/32 | 120-175 | 15-20 |
Note: Other shielding gases may be used for TIG welding. Shielding gases are chosen taking quality, cost, and operability into consideration. Preheat is generally not required; max interpass temperature is crucial (typically 150°C / 300°F).
| Diameter (in) | Diameter (mm) | Length (in) | Length (mm) | Packaging (kgs) |
|---|---|---|---|---|
| .030 | 0.8 | 36 | 914 | 5 kgs (Plastic Container) |
| .035 | 0.9 | 36 | 914 | 5 kgs (Plastic Container) |
| .045 | 1.2 | 36 | 914 | 5 kgs (Plastic Container) |
| 1/16 | 1.6 | 36 | 914 | 5 kgs (Plastic Container) |
| 3/32 | 2.4 | 36 | 914 | 5 kgs (Plastic Container) |
| 1/8 | 3.2 | 36 | 914 | 5 kgs (Plastic Container) |
| 5/32 | 4.0 | 36 | 914 | 5 kgs (Plastic Container) |
| 3/16 | 4.8 | 36 | 914 | 5 kgs (Plastic Container) |
We also supply ER2209 in spools (2#, 10#, 25#, 30#, 33#) for MIG/GMAW and coils for SAW on request.
The ER2209 filler metal is a crucial consumable for industries requiring a combination of high strength and exceptional resistance to chloride corrosion. Its key uses include:
Dipti Metal Industries is a proud ER2209 TIG Rod Exporter, ER2209 TIG Rod Trader, and ER2209 TIG Rod Distributors from our base in TIG rod ER2209 TIG Rod manufacturer Mumbai, India. We serve as an ER2209 manufacturer in Asia and a reliable ER2209 manufacturer in Europe, ensuring timely and compliant delivery to major industrial hubs across over 190 countries globally.
Are you searching to buy ER2209 TIG Rod or ER2209 MIG Wire that is dependable, high-quality, and AWS A5.9 certified for your critical Duplex Stainless Steel fabrication or repair projects? Contact Dipti Metal Industries, your expert biggest manufacturer and ER2209 TIG Rod Manufacturer, Duplex GTAW/GMAW Filler Metal Supplier in Mumbai, India, today to discuss your specific requirements or to request a personalized, custom quote. Our team is dedicated to providing you with the most effective, safest, and most reliable DIPTIINOX® ER2209 solutions.
Price guidance (non-binding): USD 12.00–80.00 per kg depending on grade, diameter, packaging (Rod/Spool/Coil), quantity, and delivery terms. Final prices are quotation-based.
ER2209 is primarily designed for welding Duplex Stainless Steels like Duplex 2205 (UNS S31803/S32205), and also for joining Duplex to carbon steels. It is highly valued for its excellent Pitting Resistance Equivalent Number (PREN) > 35 and superior mechanical strength.
Nitrogen is critical for stabilizing the Austenitic phase in the Duplex microstructure. Its inclusion in ER2209 (typically 0.08% to 0.20%) helps ensure a balanced ferrite-austenite structure in the weld metal, which is necessary for achieving optimal strength and corrosion resistance.
ER2209 offers significantly higher tensile strength (approx. double) and superior resistance to both Pitting Corrosion and Stress Corrosion Cracking (SCC) compared to standard austenitic grades like ER316L, making it suitable for much more demanding and corrosive environments.
The most critical control factor is heat input. High heat input (or high interpass temperature, typically exceeding 150°C / 300°F) can lead to excessive ferrite content and the formation of detrimental intermetallic phases (like Sigma phase), which severely reduce the weld's toughness and corrosion resistance. Welders must strictly adhere to low interpass temperatures.
Global export expertise: Seaworthy export packing • Line-wise bagging & tagging • Full documentation & TPI. We are a worldwide exporter of quality ER2209 Filler Metal for export from Mumbai, India.