Zirconium Welding Wire Standard AWS A5.24 ERZR2 Diameter 0.8mm, 1.0mm, 1.2mm ,2.4mm
SPECIFICATIONS; ANSI/AWS A5.24 ERZR2 ASME SFA A5.24 ERZR2
This specification prescribes the requirements for classification of zirconium and zirconium alloy electrodes and rods for GTA, GMA, and PA welding. AWS A5.24/A5.24M:2005 is a revision of the zirconium welding electrode document last revised in 1990. The compositions specified for each classification represent the latest state-of-the-art. Additional requirements are included for testing procedures, manufacture, sizes, lengths, and packaging. A guide is appended to the specification as a source of information concerning the classification system employed and the intended use of the zirconium alloy filler metal.
All standards (codes, specifications, recommended practices, methods, classifications, and guides) of the American
Welding Society (AWS) are voluntary consensus standards that have been developed in accordance with the rules of the
American National Standards Institute (ANSI). When AWS American National Standards are either incorporated in, or
made part of, documents that are included in federal or state laws and regulations, or the regulations of other governmental
bodies, their provisions carry the full legal authority of the statute. In such cases, any changes in those AWS standards
must be approved by the governmental body having statutory jurisdiction before they can become a part of those laws and
regulations. In all cases, these standards carry the full legal authority of the contract or other document that invokes the
AWS standards. Where this contractual relationship exists, changes in or deviations from requirements of an AWS standard
must be by agreement between the contracting parties.
Previous editions of the document are as follows:
AWS A5.24-76, Specification for Zirconium and Zirconium Alloy Bare Welding Rods and Electrodes
AWS A5.24-79, Specification for Zirconium and Zirconium Alloy Bare Welding Rods and Electrodes
ANSI/AWS A5.24-90, Specification for Zirconium and Zirconium Alloy Welding Electrodes and Rods
AWS A5.24/A5.24M:2005, Specification for Zirconium and Zirconium-Alloy Welding Electrode and Rods
Zirconium Welding wire 1.6mm/2.4mm/ 3mm standard AWS A5.24
Zirconium welding wire diameter ( 0.8mm, 0.9mm , 1.0mm , 1.2mm , 1.6mm , 2.4mm, 3.0mm)
TYPICAL CHEMISTRY (%) & WELD METAL PROPERTIES;
AWS Spec.
Zirconium + Hafnium 99.0 min
Hafnium 4.50 max.
Iron + Chromium 0.20 max.
Oxygen 0.11-0.15 Elongation in 2” 16% min.
Nitrogen 0.015 max.
Carbon 0.030 max.
Hydrogen 0.005 max.
Tensile Strength (psi) 55,000
Yield Strength (psi) 30,000
AVAILABLE SIZES: .045, 1/16, 3/32, 1/8
| Grade | AWS A5.24/A5.24M Element composition (%) < |
| Zr+Hf | Hf | Fe+Cr | Sn | H | N | C | Nb | O |
| R60702 | 99.9 | 4.5 | 0.20 | -- | 0.005 | 0.015 | 0.03 | -- | 0.11~0.15 |
| R60704 | 97.5 | 4.5 | 0.20~0.30 | 1.0~2.0 | 0.005 | 0.015 | 0.03 | -- | 0.11~0.16 |
| R60705 | 95.5 | 4.5 | 0.2 | -- | 0.005 | 0.015 | 0.03 | 2.0~3.0 | 0.11~0.16 |
