Duplex 2205 welding wire is used to weld duplex stainless steel components requiring high strength and resistance to corrosion, especially in chloride-rich environments such as marine structures, chemical tanks, desalination equipment, and pipelines. The standard grade is ER2209, which matches the 2205 base metal in chemical composition and mechanical properties. In 2025, the demand for ER2209 wire remains steady, and Chinese manufacturers offer competitive prices with full certifications. Below is a comprehensive guide to 2205 welding wire pricing and trusted factories in China.
Duplex 2205 Welding Wire Price by Type and Diameter (FOB China, 2025)
Prices vary by welding method, diameter, and packaging. Here’s a breakdown:
| Wire Type | Diameter | Packaging | Price (USD/kg) |
|---|---|---|---|
| MIG (ER2209) | Ø 1.2 mm | 15 kg spool | $7.80 – $9.20 |
| TIG (ER2209) | Ø 2.4 mm | 5 kg tube | $8.50 – $10.50 |
| SAW (ER2209 Flux Cored) | Ø 1.6 mm | 15–25 kg spool | $9.50 – $11.00 |
Top Duplex 2205 Welding Wire Factories in China
These manufacturers are known for high-quality ER2209 wire with full certifications and global export capabilities:
| Factory | Main Product | Certifications | MOQ |
|---|---|---|---|
| DLX Alloy | ER2209 MIG, TIG, SAW wire | ISO 9001, AWS A5.9, EN 10204 3.1 | 100 kg |
| Jiangsu Huaxiao | ER2209 TIG rods, spooled wire | CE, TUV, SGS | 200 kg |
| Shanghai Beall Industry | 2205 welding wire full range | EN 10204 3.1, PED | 100 kg |
| Wuxi Yeguang Welding Materials | ER2209 solid and flux-cored wire | AWS, ISO | 150 kg |
Wire Features and Specifications
ER2209 wire must meet the required chemical balance for duplex structure and provide excellent resistance to stress corrosion cracking and pitting.
| Property | Typical Value |
|---|---|
| Tensile Strength | ≥ 760 MPa |
| Yield Strength | ≥ 550 MPa |
| Elongation | ≥ 25% |
| Ferrite Content | 30% – 60% |
| Certifiable Standards | AWS A5.9 ER2209 / ISO 14343 |
Related Questions
How much does Duplex 2205 welding wire cost per kg?
The FOB China price for ER2209 welding wire ranges from $7.80 to $11.00 per kg in 2025 depending on type and diameter.
What is the difference between ER2209 and 2205?
ER2209 is the welding wire grade that matches 2205 base metal in composition and performance; it is used for joining 2205 components.
Where can I buy ER2209 welding wire in China?
You can buy from factories like DLX Alloy, Jiangsu Huaxiao, and Beall Industry, all of which offer certified ER2209 wire for export.
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