Conrad Welding Supplies, based in Houston, USA, specializes in manufacturing and supplying AWS Class ERZR-4 MIG and TIG Filler Metal. This product is specifically designed for welding zirconium and zirconium alloy components in environments that are highly reactive and corrosive. Known for its outstanding corrosion resistance, ERZR-4 stands up well against strong acids like hydrochloric, sulfuric, and various organic acids. Conrad’s filler wire guarantees clean, stable arcs with minimal contamination, ensuring excellent mechanical integrity in both MIG and TIG processes. It’s perfect for applications in nuclear, aerospace, chemical processing, and pharmaceuticals, where metallurgical purity and corrosion resistance are crucial.
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The ERZR-4 Filler Metal is made up of at least 99.2% zirconium, with small amounts of hafnium (<4.5%), iron, chromium, and other impurities carefully controlled to maintain high weld quality. This alloy boasts exceptional resistance to corrosion from acids, alkalis, and chloride environments. Its mechanical properties include a tensile strength of at least 380 MPa, yield strength of at least 230 MPa, and elongation of at least 16%, ensuring that the welds are both durable and ductile. Additionally, the filler metal has low thermal neutron absorption and high resistance to hydrogen embrittlement, making it ideal for high-integrity, high-purity welding in critical conditions.
| 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 A5.24, ERZR-4 MIG & TIG Filler Metal Application & uses |
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Conrad Welding Supplies, based in Houston , USA, is a leading manufacturer and distributor of MIG & TIG welding filler metal rods and wires, including AWS Class ERZR-4. Our high-performance welding solutions are crafted from premium aluminum-zinc alloy, providing exceptional corrosion resistance and weldability. The ERZR-4 filler metal is perfect for industries such as aerospace, automotive, and marine, where reliability and strength are crucial. With a strong commitment to timely delivery and outstanding customer service, Conrad Welding Supplies ensures durable, precise, and optimal performance with AWS Class ERZR-4.
| 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 |
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AWS Class ERZR-4 MIG and TIG Filler Metal is extensively used in nuclear power generation, especially for welding fuel rods, pressure vessels, and reactor components, thanks to zirconium’s low neutron absorption cross-section. It’s also essential in the chemical processing industry for building and repairing acid-resistant vessels, piping systems, and heat exchangers that come into contact with hydrochloric, nitric, and organic acids. Furthermore, this filler is employed in aerospace, pharmaceuticals, and semiconductor manufacturing, where controlling contamination and ensuring metallurgical stability are of utmost importance.
We provide high-quality electrodes, filler wire, MIG and TIG welding wires to a wide range of industries, including oil and gas, food, marine, petrochemical, power generation, and aerospace.
Conrad Welding Supplies is a leading manufacturer, supplier and exporter of high-quality Coated Electrodes, Flux Core, MIG & TIG wires, SAW & Flux, Welding Wires, and Filler Wires, catering to various industries in Houston , USA
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