Hajji Welding Supplies is a trusted manufacturer and supplier based in Tunisia, Tunis, specializing in high-quality welding consumables. We proudly offer AWS Class ERZR-4 MIG and TIG wires, designed to deliver superior performance, durability, and precision for a wide range of industrial applications. With advanced manufacturing technology and strict quality control, Hajji ensures every product meets international welding standards. Our commitment to excellence, reliability, and customer satisfaction has made us a preferred partner for welding professionals across Tunis and beyond. Choose Hajji for consistent quality and exceptional welding results.
| Classification | AWS A5.24, ERZR-4 |
| Form | MIG spools, TIG cut lengths, Reels and Coils |
| Type Of Welding | Inert Gas Welding |
| Standard TIG straight lengths are available | 36” (914 mm) or 39” (1000 mm) lengths. Other lengths available upon request. |
| AWS ERZR-4 MIG & TIG Filler Metal Application & uses |
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AWS Class ERZR-4 MIG & TIG welding wires are formulated for high-strength, corrosion-resistant welds. The typical chemical composition includes C: 0.08%, Mn: 1.0%, Si: 0.5%, Cr: 18–20%, Ni: 8–10%, Mo: 0.3%, providing excellent toughness and ductility. Mechanical properties feature a tensile strength of 580–620 MPa, yield strength around 400 MPa, and elongation of 30%. These characteristics ensure strong, clean welds with superior resistance to cracking and oxidation, making ERZR-4 ideal for stainless steel fabrication, piping, and structural applications.
| Cr | Fe | O | Sn | Zr |
| 0.10 | 0.20 | 0.12 | 1.4 | 98.5 |
| Tensile Strength, Ultimate | Tensile Strength, Yield | MPa @Strain | Elongation at Break | Modulus of Elasticity | Poissons Ratio | Shear Modulus |
| 413 MPa | 214 | 20 % | 0.200 % GPa | 99.3 | 0.37 | 36.2 GPa |
Diameter | Process | Volt | Amps | Shielding Gas | |
in | (mm) | ||||
1/16 | 1.6 | GTAW | 12-15 | 80-150 | 100% Argon |
3/32 | 2.4 | GTAW | 12-15 | 130-200 | 100% Argon |
1/8 | 3.2 | GTAW | 112-15 | 180-225 | 100% Argon |
At Hajji Welding Supplies, we take pride in being one of Tunis’s trusted suppliers of high-quality welding consumables. Our expertise lies in AWS Class ERZR-4 MIG & TIG, 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.
AWS Class ERZR-4 MIG & TIG welding wires are widely used for joining austenitic stainless steels in industries requiring high strength and corrosion resistance. Common applications include chemical processing equipment, food and beverage machinery, marine structures, and piping systems, where hygiene and durability are critical. They are ideal for butt, fillet, and lap welds, providing smooth, crack-resistant joints. Their excellent weldability and resistance to oxidation make them suitable for both MIG and TIG welding processes, ensuring precise and aesthetically clean welds. ERZR-4 wires are trusted for projects demanding reliability, long service life, and compliance with international welding standards.
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.