Duplex & Super Duplex Steel Flux Core Wire Manufacturer and Supplier in Tunisia, Tunis

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Hajji Welding Supplies, based in Tunisia, Tunis, is a trusted manufacturer and supplier specializing in high-quality welding consumables. Renowned for their expertise in Duplex and Super Duplex Steel Flux Core Wire, they cater to demanding industries such as oil and gas, petrochemical, and marine applications. Committed to excellence, Hajji ensures that each product meets stringent international standards, providing superior corrosion resistance, strength, and durability. With a strong focus on customer satisfaction, innovation, and technical support, Hajji Welding Supplies has established itself as a reliable partner for businesses seeking premium welding solutions in Tunis and beyond.

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What is Duplex & Super Duplex Steel Flux Core Wire?

Duplex and Super Duplex Steel Flux Core Wires are engineered for superior strength and corrosion resistance. Composition typically includes 22–25% chromium, 3–5% nickel, 0.3–0.7% molybdenum, with additions of nitrogen and manganese to enhance toughness and duplex microstructure. Mechanical properties feature high yield strength (≥450 MPa for Duplex, ≥550 MPa for Super Duplex) and tensile strength (≈620–750 MPa), combined with excellent elongation (25–30%) and impact toughness. These wires offer exceptional resistance to pitting, crevice, and stress corrosion cracking, making them ideal for demanding environments such as oil, gas, chemical, and marine industries.

Hajji Welding Supplies Tunis

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Duplex & Super Duplex Steel Flux Core Wire Chemical Composition

ClassificationDuplex/Super Duplex Steel Flux Core
FormWelding Flux Core Wire
Type Of WeldingGas Shielded
Diameters.045”, 1/16”
Shielding Gas100% CO2, 75-80% Ar/ balance CO2, 35-50 cfh
Welding PositionsAll positions
Duplex/Super Duplex Steel Flux Core Application & uses
  • Hardware tools
  • Metallurgy
  • Machinery
  • Construction
  • Shipbuilding
  • Petroleum
  • Chemical plant
  • Power sector
  • Gas Industry

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Leading Industrial Supplier of Duplex & Super Duplex Steel Flux Core Wire For Welding Solutions in Tunis

At Hajji Welding Supplies, we take pride in being one of Tunis’s trusted suppliers of high-quality welding consumables. Our expertise lies in Duplex & Super Duplex Steel Flux Core Wire, engineered for precision, durability, and resistance to corrosion. With a strong commitment to quality and customer satisfaction, we provide welding solutions that support industries across construction, energy, shipbuilding, and manufacturing.

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Types of Duplex & Super Duplex Steel Flux Core Wire

Duplex-and-Super-Duplex-Steel-Flux-Core-Filler-Metal-In-Tunis
Duplex and Super Duplex Steel Flux Core Filler Metal
Duplex Steel Flux Core
Duplex-and-super-Duplex-Flux-Core-Welding-Wire-In-Tunis
Duplex and super Duplex Flux Core Welding Wire
Super Duplex Steel Flux Core Wire
Duplex-Alloy-Flux-Core-In-Tunis
Duplex Alloy Flux Core
Super-Duplex-Steel-Dual-Shield-Flux-Core-In-Tunis
Super Duplex Steel Dual Shield Flux Core

Duplex & Super Duplex Steel Flux Core Wire Uses

Duplex and Super Duplex Steel Flux Core Wires are widely used in industries requiring high strength and corrosion resistance. They are ideal for welding components in oil and gas pipelines, offshore platforms, chemical processing plants, and desalination equipment. Their exceptional resistance to pitting, crevice, and stress corrosion cracking makes them suitable for marine structures, pressure vessels, and heat exchangers exposed to harsh chloride environments. Additionally, they are employed in petrochemical, power generation, and wastewater treatment applications, where durability under extreme conditions is critical. These wires ensure long-lasting, reliable welds in demanding, corrosive, and high-temperature environments.

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Industry We Serve

The Hajji Industries Server is built to deliver reliability, speed, and scalability for mission-critical operations. Designed for modern industrial environments, it ensures seamless performance in manufacturing, engineering, energy, and automation sectors.