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1. Zirconium welding rod is a metal straight filler welding wire which is made of zirconium, it is widely used in the chemical processing industry.
2. Size and standards
Grade: Zr702 ERZr2
Diameters: 0.8 1.0 1.2 1.6 2.0 2.4 3.2 4.0.
Standards: ASTM B550 AWS A5.24
3. Product features: zirconium welding wire has excellent corrosion resistance. It has very good corrosion resistance to most organic acids, inorganic acids, strong alkalis, and some molten salts. Hydrochloric acid, nitric acid, and organic acids at nearly 100 ° C have no effect on zirconium. The corrosion resistance of zirconium in alkali is better than that of titanium, tantalum, niobium, and stainless steel, and has a good heat resistance and processability. Therefore, zirconium has been widely used in industrial and chemical fields.


4. Chemical composition according to AWS A5.24
AWS spec | UNS No. | Zr+Haf | Haf | Fe+Chr | Tin | O | H | N | C | Ni(Co) |
ERZr2 | R60702 | >99 | 4.5 | 0.2 | 0.11~0.15 | 0.005 | 0.015 | 0.03 | ||
ERZr3 | R60704 | >97.5 | 4.5 | 0.2~0.4 | 1.0~2.0 | 0.11~0.16 | 0.005 | 0.015 | 0.03 | |
ERZr4 | R60705 | >95.5 | 4.5 | 0.2 | 0.11~0.16 | 0.005 | 0.015 | 0.03 | 2.0~3.0 |
5. Applications: Zirconium Welding Rod is mainly used in pressure vessels, the petrochemical industry, aerospace, marine engineering, hydrogenation reactor, and other fields
6. How to select a Zirconium filler wire for welding?
The chemical composition of the welding wire is the same as that of the base metal, and the model is ERZr2. The welding wire used must have a quality certificate or material certificate. Some zirconium welding wire stock, material certification accompany with goods delivery, and 3rd part test also supported.
7. What are the welding cautions of the Zirconium welding rod?
High-purity argon (argon purity ≥ 99.999%) is used as shielding gas for zirconium welding due to the sensitivity of zirconium to oxygen, the welding of zirconium materials must adopt a gas collector and several bottles of argon shall be used in parallel to increase the supply of argon. The method of appropriately increasing the amount of argon shall be used to isolate oxygen and nitrogen. The purity of xenon must be checked when formally welding and replacing an argon cylinder or gas collector.
8. Why choose us?
Straight Zirconium filler rod marking is available
Package: waterproof film inside and plastic box wooden case outside.
Delivery: DHL, FedEx, TNT express delivery or by air and by sea delivery.
Contact Us
Tel: +86-0917- 3664600
Whatsapp: +8618791798690
Email: sales@tmsalloy.com
tina@tmsalloy.com
We are firmly committed to our core mission of building the brand reputation of a trusted supplier of Longitudinal TIG Welding Machine for Water Geyser. Our social mission is to create high-quality products with advanced technology and continue to contribute to people's lives. Our products are complete, quality assurance, we have a professional team and mature technology.
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