Zirconium 705 Welding Wire Zr705 Wire UNS R60705 Wire for Industrial
Description
Zirconium 705 (UNS R60705) is a zirconium-based alloy containing small additions of niobium, titanium, and other alloying elements. It combines excellent strength, corrosion resistance, and oxidation resistance, making it ideal for demanding applications in harsh environments.
Zirconium 705 is widely used in nuclear power generation, aerospace components, and chemical processing equipment due to its ability to withstand high temperatures and aggressive media. It also offers outstanding resistance to stress-corrosion cracking, ensuring durability in critical service conditions.
Zirconium 705 Welding Wire
Zirconium 705 welding wire is specifically designed for welding zirconium and zirconium alloys, particularly Zirconium 705.
It is manufactured in standard diameters ranging from 0.045" to 0.125", suitable for various industrial welding applications.
Zr705 wire can be used in multiple welding processes, including:
Gas Tungsten Arc Welding (GTAW / TIG)
Gas Metal Arc Welding (GMAW / MIG)
Shielded Metal Arc Welding (SMAW)
This alloy provides high weld quality and maintains corrosion and temperature resistance after joining.
Chemical Composition (%)
| Element | Zr702 / R60702 | Zr704 / R60704 | Zr705 / R60705 |
|---|---|---|---|
| Zirconium + Hafnium, min | 99.2 | 97.5 | 95.5 |
| Hafnium, max | 4.5 | 4.5 | 4.5 |
| Iron + Chromium | 0.2 max | 0.2–0.4 | 0.2 max |
| Tin | — | 1.0–2.0 | — |
| Hydrogen, max | 0.005 | 0.005 | 0.005 |
| Nitrogen, max | 0.025 | 0.025 | 0.025 |
| Carbon, max | 0.05 | 0.05 | 0.05 |
| Niobium | — | — | 2.0–3.0 |
| Oxygen, max | 0.16 | 0.18 | 0.18 |
Physical Properties
| Property | Zr702 / R60702 | Zr704 / R60704 | Zr705 / R60705 |
|---|---|---|---|
| Tensile Strength (min) | 55 ksi / 380 MPa | 60 ksi / 415 MPa | 80 ksi / 550 MPa |
| Yield Strength (min) | 30 ksi / 205 MPa | 35 ksi / 240 MPa | 55 ksi / 380 MPa |
| Elongation (min, %) | 16 | 14 | 16 |
Applications
Zirconium 705 Welding Wire is suitable for a wide range of industrial and high-performance applications, including:
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Nuclear and Aerospace Components – Reactor vessels, heat exchangers, and jet engine parts.
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Chemical Processing Equipment – Pressure vessels, piping, and storage tanks for corrosive chemicals.
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Heat Exchangers and Boilers – Components exposed to high temperature and pressure.
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Medical and Laboratory Instruments – Devices requiring biocompatibility and corrosion resistance.
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Industrial Fabrication – Fasteners, bolts, springs, rings, and small precision parts.
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Electrical Components – Electrodes, battery terminals, and high-temperature electrical connectors.
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Automotive Applications – Components such as spark plugs, fuel injectors, and exhaust system parts.
Key Features
Excellent corrosion and oxidation resistance
High tensile and yield strength
Resistance to stress-corrosion cracking
Suitable for high-temperature and high-pressure environments
Good weldability with stable mechanical properties
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