Super Duplex Stainless Steel MIG & TIG Welding Wire for 2507 & S32750 Applications
ER2594 is a super duplex stainless steel welding wire designed for welding 25Cr super duplex stainless steels such as 2507 (UNS S32750), S32760, and Zeron 100. It offers excellent resistance to pitting corrosion, crevice corrosion, and chloride stress corrosion cracking, making it ideal for offshore, chemical processing, desalination, and marine environments.
📧 You can request a quote by email support@ronsteel.com with your required specification, size and quantity.
ER2594
ER2594
| Standard | Classification |
|---|---|
| AWS A5.9 | ER2594 |
| ASME SFA 5.9 | ER2594 |
| EN ISO 14343-A | W 25 9 4 N L / G 25 9 4 N L |
| C | Mn | Si | Cr | Ni | Mo | N | Cu | P | S |
|---|---|---|---|---|---|---|---|---|---|
| ≤0.03 | ≤2.0 | ≤1.0 | 24.0–27.0 | 8.0–10.5 | 2.5–4.5 | 0.20–0.30 | ≤0.5 | ≤0.03 | ≤0.03 |
| Property | Typical Value |
|---|---|
| Tensile Strength | ≥ 750 MPa |
| Yield Strength | ≥ 550 MPa |
| Elongation | ≥ 25% |
| Impact Toughness | Excellent |
| Ferrite Content | FN 35–60 |
✅ Excellent Corrosion Resistance: ER2594 delivers superior resistance to pitting corrosion, crevice corrosion, chloride stress corrosion cracking (SCC) and seawater corrosion.
✅ High Mechanical Strength: The weld deposit provides high tensile and yield strength while maintaining good ductility and impact toughness.
✅ Optimized Ferrite-Austenite Balance: The controlled alloy chemistry helps maintain an ideal duplex microstructure after welding, reducing the risk of hot cracking and phase imbalance.
✅ Suitable for Harsh Industrial Environments: Widely used in offshore platforms, oil & gas piping systems, heat exchangers, pressure vessels, desalination plants, and petrochemical processing systems.
ER2594 filler metal is widely used for welding:
We supply ER2594 welding consumables in multiple forms:
| Process | Diameter Range |
|---|---|
| TIG (GTAW) | 1.6 mm – 3.2 mm |
| MIG (GMAW) | 0.8 mm – 1.2 mm |
| Submerged Arc (SAW) | 1.6 mm – 3.2 mm |
For optimal weld quality and phase balance in super duplex welding:
Proper heat input and interpass temperature control are critical for maintaining corrosion resistance and mechanical performance.
| Property | ER2209 | ER2594 |
|---|---|---|
| Duplex Grade | Standard Duplex | Super Duplex |
| Typical Base Metal | 2205 | 2507 / S32750 |
| Corrosion Resistance | High | Very High |
| PREN Value | ~35 | >40 |
| Chloride Resistance | Good | Excellent |
| Offshore Service | Suitable | Preferred |
✅ Stable Wire Feeding Performance
Designed for smooth arc stability and consistent feeding in automated and manual welding operations.
✅ Strict Quality Control
Each batch is manufactured according to AWS/ASME standards with full traceability and inspection.
✅ Global Industrial Supply Experience
We support distributors, fabricators, EPC contractors, and industrial end users worldwide.
✅ OEM & Customized Packaging Available
Private label, customized spool sizes, and export packaging are available upon request.
What base metals can ER2594 weld?
ER2594 is mainly used for welding super duplex stainless steels such as 2507, S32750, S32760, and related cast alloys.
Is ER2594 suitable for seawater environments?
Yes. ER2594 provides excellent resistance to chloride-induced corrosion and is widely used in seawater and offshore applications.
Can ER2594 be used for MIG and TIG welding?
Yes. ER2594 is available for both GTAW (TIG) and GMAW (MIG) processes.
What is the difference between ER2209 and ER2594?
ER2594 is designed for super duplex stainless steel and offers higher corrosion resistance and higher PREN values than ER2209.
Need reliable ER2594 MIG wire or TIG filler rods for super duplex stainless steel welding projects?
We provide competitive factory pricing, fast global delivery, OEM & distributor support, and technical datasheets available. Contact us today for a quote.
📧 Email: support@ronsteel.com
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