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EX2594093TL - Exocor ER2594 Super Duplex TIG Welding Rod 3/32" - 10lb Tube

Packaging: 10lb tube
$47.98/lb

Package Price:

$479.80/10lb tube

In stock

OVERVIEW

Exocor ER2594 Super Duplex TIG Welding Rods

The Exocor ER2594 is a premium-grade TIG welding rod specifically engineered for the welding of super duplex stainless steels, such as UNS S32750 (2507) and UNS S32760. These alloys are renowned for their exceptional mechanical strength and resistance to corrosion, and the ER2594 filler metal is designed to match and exceed these properties in the weld zone. This rod is characterized by an over-alloyed Nickel content (typically 2-3% higher than the base metal), which is critical for maintaining the correct balance of ferrite and austenite in the microstructure of the finished weld. This phase balance is essential for ensuring that the weld metal possesses the same high resistance to stress corrosion cracking and pitting as the base material.

Industries such as offshore oil and gas, chemical processing, and marine engineering rely heavily on super duplex materials for their durability in aggressive chloride-rich environments. The Exocor ER2594 provides a Pitting Resistance Equivalent Number (PREN) typically greater than 40, offering outstanding protection against pitting and crevice corrosion. It is also an excellent choice for welding super duplex steels to lower alloyed stainless steels or carbon steels, making it a versatile consumable for complex fabrication projects. The 3/32" (0.093") diameter is ideal for a wide range of material thicknesses, providing excellent control for root passes in pipe welding as well as fill and cap passes.

At Josef Gas, we understand the critical nature of welding high-performance alloys. The Exocor ER2594 is manufactured to rigorous standards to ensure consistent chemistry, diameter, and feedability. The rods are supplied in a durable 10lb tube, protecting them from contamination and moisture. Whether you are fabricating pressure vessels, heat exchangers, or subsea piping systems, this filler metal delivers the reliability and performance required for code-compliant, high-integrity welds.

Key Applications:

  • Offshore platforms and subsea pipelines
  • Chemical and petrochemical processing equipment
  • Desalination plants
  • Pulp and paper industry digesters
  • High-strength structural components in marine environments
Additional Information
Brand:Exocor
Diameter:2.5mm (3/32")
Grade:ER2594
Weld Process:TIG (GTAW)
Packaging:10 lb Tube
Packaging Description:10lb-tube
AWS Classification:ER2594
Material Composition:Super Duplex Stainless Steel
Rod Type:TIG Cut Length
Length:36 in
Shielding Gas Requirement:100% Argon, Argon/Helium Mixtures
Tensile Strength:123,000 PSI (Typical)
Position:N/A
Polarity:DCEN

INCLUDED

  • 10lb Tube of Exocor ER2594 Super Duplex TIG Rods (3/32" Diameter)
  • Product Label with Heat Number and Classification

APPLICATIONS

  • Offshore Oil & Gas Platforms (Piping, Manifolds)
  • Chemical Processing Plants (Heat Exchangers, Tanks)
  • Desalination Equipment
  • Marine Components (Propeller Shafts, Rudders)
  • Power Generation (Flue Gas Desulfurization Systems)
  • Pulp & Paper Bleaching Equipment

FAQ

ER2594 is primarily used for welding super duplex stainless steels (like UNS S32750 and S32760) to themselves or to other stainless alloys.

The rod is overalloyed with 2-3% more Nickel to promote the formation of austenite in the weld metal, ensuring a proper phase balance (approx. 50% ferrite, 50% austenite) for optimal corrosion resistance and toughness.

Yes, ER2594 can be used to weld standard duplex 2205 (ER2209). It is often preferred for root passes or critical joints to provide superior corrosion resistance.

100% Argon is the standard shielding gas. However, Argon/Helium or Argon/Nitrogen mixtures can be used to improve penetration or phase balance in specific applications.

This specific product is 0.093 inches in diameter, which is approximately 2.4mm or 3/32 inches.

Generally, super duplex stainless steels are used in the as-welded condition. PWHT is typically not required unless specified by a particular code or procedure, as improper heat treatment can form detrimental phases.

The Pitting Resistance Equivalent Number (PREN) for ER2594 is typically greater than 40, indicating exceptional resistance to pitting corrosion.