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Zirconium (Zr) 702 UNS R60702 Welding Wire / Rod AWS A5.24 ERZR 2 Supplier, Stockist & Exporter in Mumbai India.

Zirconium Welding Wire / Filler Wire / Rod Grade 702

Zirconium (Zr) Filler Wire 702 / welding wire / rod / uns r60702

ZIRCONIUM | 702 ZR2 Welding Wire | UNS C15100 | Zirconium (Zr) 702 | UNS R60702 Welding Wire / Rod |  AWS A5.24 ERZR 2 | Zirconium Filler Wire Grade 702

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Alloy Description and Applications of Zirconium Filler Wire 702 (Zr) :

Zirconium is a reactive metal and is sensitive to embitterment by oxygen, nitrogen and hydrogen above 1100° F (590°C). ERZr2 is a commercially pure zirconium weld alloy that is used in Pressure Vessels, Heat Exchangers, Piping, Tanks, Mixers, Pumps, Valves and many other corrosion resistance needs for chemical or mechanical equipment. ZR2 is known as the workhorse grade in the Zirconium welding family and will need protected using an inert shielding gas from it melting point of 3334°F (1835°C) to below 600°F(315°C) as will the entire work area. Cleanness and gas protection during the entire welding process is very important for high quality results that are needed when working with these alloys. Also found to successfully weld zirconium to Titanium, Tantalum, Niobium (Columbium) And Vanadium however the weld metal will be stringer and less ductile than the base metals.

Zr 702 is a Zirconium Grade characterized by immunity to stress corrosion cracking and high resistance to pitting and crevice corrosion. The grade has very good corrosion resistance in most organic acids, excellent corrosion resistance in mineral acids, good corrosion resistance in strong alkalis and moderate mechanical strength.

Zirconium Welding Rod / Zirconium Welding Wire has a silvery white appearance in its elemental form which is similar to that of titanium. Zirconium is a corrosion resistant metal that holds similar properties as titanium and stainless steel.

Zirconium is widely chosen by many industrialists due to its resistance quality form organic as well as inorganic substances like salt solutions, acids, strong alkalis, and molten salts. Especially, it does not react with strong chemicals applications like sulfuric, hydrochloric, acetic acid and nitric acid. Even under great tension zirconium has high resistance from erosion and exceptional corrosion resistance from mineral acids and inorganic acids. It holds the efficiency of high heat transfer.

Zirconium and its alloys are available in many forms like sheets, plates, wire, rods, and tube form. Manufacturers also produce zirconium as powder, pieces, pellets, granules and disc and other compound forms. It can be easily machined, welded, and fabricated to improve the quality of material as per the requirement. Cutting off the zirconium can be done by machining, hack-sawing, shearing, plasma cutting, oxygen-gas cutting, cold sawing, and water-jet cutting.

Although Zirconium Welding Rod / Zirconium Welding Wire / Zirconium Filler Wire holds a lot of beneficiary properties, it also requires extra attention to cleanliness top protect the weld zone from atmospheric contamination. It needs to be free from oil, grease, and dirt to avoid dissolving of carbon and oxygen-containing materials that can cause embrittlement of the material and reduce the corrosion resistance of the metal.

Thus, Due to the cost-effectiveness of zirconium, it is being used increasingly and also offers longer life with low maintenance and improved efficiency.


Type :

Filler metal for Gas Tungsten Arc welding of Zirconium and Zirconium alloys.


Specification of Zirconium Filler Wire 702 (Zr) :

Straight Lengths : 18", 24", 36" and custom length
Spool : 12" diameter standard spool
Coil : By Meter / Kg's
Zirconium 702 Weld Wire : AWS A5.24 ERZR 2
Zirconium 702 Weld Rod : AWS A5.24 ERZR 2


Sizes of Zirconium Filler Wire 702 (Zr) :

Dia in mm Ex-Stock in Hand Dia in inches
1.14 1.2 mm 0.045
1.57 1.6 mm 0.03
2.3 2 mm 0.04
3.175 3.15 mm 0.047


Materials of Zirconium Filler Wire 702 (Zr) :

Titanium Zirconium
CP-TI (Grade 2) 702
TI-PD (Grade 7)  


Applications of Zirconium Filler Wire 702 (Zr) :

Zirconium and Titanium Weld Wire Applications

Whether you need straight or spooled weld wire, United Titanium has the inventory to fit your application. Used for MIG or TIG welding, titanium and zirconium weld wire offers strength, formability and versatility across a variety of industries from aerospace engineering to chemical processing. Common weld wire applications include:

  • Piping systems
  • Pressure vessels
  • Heat exchangers
  • Chemical storage tanks
  • Repair
  • Fabrication
  • chemical processing plants
  • Getter straps
  • Nuclear components


Suitable For Welding :

Zirconium alloys in general but also for successfully weld zirconium to titanium, tantalum, niobium (columbium) and vanadium however the weld metal will be stringer and less ductile than the base metals.


Zr 702 main characteristics:

  • High heat transfer efficiency
  • Very low thermal expansion
  • Immunity to stress corrosion cracking (SCC).
  • High resistance to localized (pitting and crevice) forms of corrosion
  • Very good corrosion resistance in most organic acids
  • Exceptional corrosion resistance in mineral acids
  • Good corrosion resistance in strong alkalis

Zr 702 is used in environments where even the best stainless steels are not sufficiently corrosion resistant. Zirconium is in many cases the ideal choice from both technical and economical point of view (the price/life time relation).


Standards : UNS: R 60702


Classification of Zirconium Filler Wire 702 (Zr) :

  • AWS 
  • 24: ER Zr 2
  • UNS R60702

Zirconium 702 weld wire / rods are supplied either in straight lengths or in spools as per customer requirements. Some standard sizes we stock are listed below.


Zirconium 702  Weld Wire / Rod AWS A5.24 ERZR 2 :

Ex-Stock in Hand
1.2 mm
1.6 mm
2 mm
3.15 mm


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