Product Datasheet of AWS Class E2594T1-4 Super Duplex Stainless Steel Flux cored wire (FCAW)
Product Overview:
E2594 flux cored wire is a super duplex stainless steel welding consumable used for applications requiring high strength and excellent corrosion resistance. This wire is ideal for environments exposed to severe conditions, such as high chloride and sour environments. It provides good weldability and produces high-quality welds with a balanced duplex structure.
Specifications :
- Standard Compliance: AWS A5.22/ASME SFA 5.22: E2594T1-1/4
- EN ISO Classification(s): EN ISO 17633-A: T 25 9 4 Cu N L P M21
- Available Forms:
- Diameter: 1.2mm, 1.6mm
- Packaging: Spools of various weights
- Shielding Gas: 75-80% Ar + 20-25% CO2, or 100% CO2
Chemical Composition (%):
| Element | Min | Max |
|---|---|---|
| Carbon (C) | 0.02 | 0.03 |
| Manganese (Mn) | 0.50 | 1.50 |
| Silicon (Si) | 0.20 | 0.80 |
| Phosphorus (P) | 0.00x | 0.03 |
| Sulfur (S) | 0.00 | 0.02 |
| Chromium (Cr) | 24.0 | 26.0 |
| Nickel (Ni) | 6.0 | 8.0 |
| Molybdenum (Mo) | 3.0 | 4.0 |
| Copper (Cu) | 0.00 | 1.0 |
| Nitrogen (N) | 0.20 | 0.30 |
| Iron (Fe) | Balance |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | 800 - 1000 MPa |
| Yield Strength | ≥ 500 MPa |
| Elongation | ≥ 25% |
| Impact Toughness (Charpy V) | ≥ 50 J (at -40°C) |
| Hardness (HB) | 280 - 320 HB |
| Ferrite Content | 35-55% (as welded) |
Applications :
- Oil and Gas Industry: Piping systems, pressure vessels, and processing equipment exposed to corrosive environments.
- Chemical and Petrochemical Plants: Components in highly corrosive and high-temperature environments.
- Offshore Platforms: Structures and equipment exposed to seawater and high chloride conditions.
- Marine Environments: Shipbuilding and repair, particularly for parts in contact with seawater.
- Pulp and Paper Industry: Equipment exposed to harsh chemicals and high temperatures.
- Desalination Plants: Components in both thermal and reverse osmosis desalination processes.
- Structural Components: Applications requiring high strength and resistance to stress corrosion cracking.
Storage and Handling
- Storage:
- Store in a dry, enclosed environment to prevent moisture absorption.
- Keep away from direct sunlight and contaminants.
- Store in original packaging until use to maintain product integrity.
- Handling:
- Handle with clean gloves to prevent contamination.
- Avoid physical damage to the wire during handling and installation.
- Pre-welding:
- Ensure the workpiece is clean and free from oil, grease, and other contaminants.
- If necessary, use a suitable cleaning solvent to prepare the workpiece.
- Welding:
- Follow recommended welding parameters and techniques.
- Use appropriate shielding gas as specified.
- Maintain proper ventilation in the welding area to avoid inhaling fumes.
- Post-welding:
- Inspect welds for defects and ensure they meet required specifications.
- Perform any necessary post-weld heat treatment as specified for the application.
Manufacturers/Brands and their Product/Trade Name:
| Brand | Product Name | |
|---|---|---|
| ESAB / Exaton | Shield-Bright 2594 | |
| BOHLER | FOXcore 2594-T1 / FOXcore 2594-T1 HD | |
| Lincoln | Supercore™ 2507P Flux-cored (FCAW-G) Wire | |
| WB Alloys | WB62593LP | |
| Daiko | DAIKO FCW 2594P | |
| Welding Alloys | TETRA V D57L-G |
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