Zirconium Welding Wire

Description Of Zirconium Welding Wire

Zirconium Welding Wire is a high-purity filler metal used for TIG (GTAW) and plasma welding of zirconium and zirconium alloy equipment. It is manufactured from high-purity zirconium sponge or crystal bars through vacuum melting, forging, rolling, drawing, and precision cleaning processes. The wire is available in grades Zr702 (R60702), Zr704 (R60704), Zr705 (R60705), Zircaloy-2, and Zircaloy-4, with diameters ranging from 0.8mm to 6.0mm.

Zirconium welding wire is essential for joining zirconium components in chemical processing equipment, nuclear reactors, and other demanding applications. Zirconium offers outstanding corrosion resistance in hydrochloric acid, sulfuric acid, nitric acid, acetic acid, and strong alkalis. Its low neutron absorption cross-section makes it the material of choice for nuclear fuel cladding and core structural components. The welding wire is carefully formulated to match the base metal chemistry, ensuring sound welds with excellent corrosion resistance and mechanical properties.

The manufacturing process includes vacuum arc remelting (VAR) to ensure high purity and homogeneity, followed by hot and cold working to final diameter. The wire surface is cleaned and pickled to remove contaminants, oxides, and drawing lubricants. Each spool or straight length is inspected for diameter, surface quality, and chemical composition. The wire is packaged in protective atmosphere or vacuum-sealed bags to prevent contamination during storage and transport.

Features Of Zirconium Welding Wire

• High Purity: Manufactured from high-purity zirconium sponge or crystal bars to ensure consistent weld chemistry and performance.

• Excellent Corrosion Resistance: Welds made with zirconium wire resist hydrochloric acid, sulfuric acid, nitric acid, acetic acid, and strong alkalis.

• Low Neutron Absorption: Ideal for nuclear fuel cladding and reactor core components.

• Good Weldability: Formulated to match base metal chemistry, ensuring sound welds with excellent mechanical properties.

• Clean Surface: Pickled and cleaned to remove contaminants, oxides, and drawing lubricants.

• Uniform Diameter: Tight diameter tolerances ensure consistent feedability and arc stability.

• Multiple Grades Available: Zr702, Zr704, Zr705, Zircaloy-2, Zircaloy-4.

• Wide Diameter Range: 0.8mm to 6.0mm, with custom sizes available.

• Packaging Options: Straight lengths (1000mm, 2000mm) or spools (1kg, 5kg, 10kg).

Specifications Of Zirconium Welding Wire