ASTM B523 Zirconium and Zirconium Alloy Tube
- Type: Seamless and Welded Tube
- Grade R60702—Unalloyed zirconium
- Grade R60704—Zirconium-tin alloy
- OD: 10-90mm WT: 1-10mm
ASTM B523/B523M Seamless and Welded Zirconium and Zirconium Alloy Tube
Golden Sunbird Metals supplies premium ASTM B523 zirconium and zirconium alloy seamless and welded tubes engineered for exceptional corrosion resistance and outstanding performance in demanding nuclear and chemical environments. Available in three grades—R60702 (unalloyed Zr702), R60704 (zirconium-tin Zr704), and R60705 (zirconium-niobium)—these tubes are offered in outside diameters of 10–90 mm, wall thicknesses of 1–10 mm, and lengths up to 12 meters. Ideal for chemical processing equipment (reactors, heat exchangers, piping), nuclear reactor components, acid-handling systems, marine and desalination applications, our ASTM B523 tubes meet stringent mechanical and chemical requirements while ensuring long service life under aggressive conditions. Supplied with EN 10204 Type 3.1 or 3.2 certification and full testing (chemical analysis, tensile, intergranular corrosion, and metallographic), GS Alloy delivers reliable, high-performance zirconium tubing solutions tailored to your exact specifications. Contact us today for a competitive quote and fast global delivery.
- Grade R60702—Unalloyed zirconium.
- Grade R60704—Zirconium-tin alloy.
Chemical Composition (wt.%) of ASTM B523 Zirconium and Zirconium Alloy Tube
| Element | Grade R60702 | Grade R60704 |
| Zirconium + Hafnium (min) | 99.2 | 97.5 |
| Hafnium (max) | 4.5 | 4.5 |
| Iron + Chromium | 0.2 (max) | 0.2 to 0.4 |
| Tin | – | 1.0 to 2.0 |
| Hydrogen (max) | 0.005 | 0.005 |
| Nitrogen (max) | 0.025 | 0.025 |
| Carbon (max) | 0.05 | 0.05 |
| Niobium | – | – |
| Oxygen (max) | 0.16 | 0.18 |
Mechanical Properties of ASTM B523 Zirconium and Zirconium Alloy Tube
| Property | Grade R60702 | Grade R60704 |
| Tensile Strength (min, ksi [MPa]) | 55 [380] | 60 [415] |
| Yield Strength (min, ksi [MPa]) | 30 [205] | 35 [240] |
| Elongation in 2 in. or 50 mm (min, %) | 16 | 14 |
Features
- ASTM B523/B523M zirconium and zirconium alloy seamless and welded tubes.
- Available grades include R60702, R60704, and R60705.
- R60702 is unalloyed zirconium, R60704 is zirconium-tin alloy, and R60705 is zirconium-niobium alloy.
- Supplied in seamless or welded form to suit different fabrication and service requirements.
- Good corrosion resistance in aggressive chemical environments and strong performance in nuclear service.
- Available in controlled OD and wall thickness ranges for industrial tube applications.
Technical Specifications
| Specification | Value |
| Standard | ASTM B523/B523M Seamless and Welded Zirconium and Zirconium Alloy Tube |
| Grade | Grade R60702—Unalloyed zirconium (Zr702) Grade R60704—Zirconium-tin alloy (Zr704) |
| Seam Type | Seamless and Welded |
| Tube Size | Outside Diameter (OD): 10-90mm, Wall Thickness (WT): 1 – 10mm |
| Length | 6000-12000mm |
| Inspection Certificate | EN 10204 Type 3.1 (Mill Test Certificate), EN 10204 Type 3.2 (Witness Testing or 3rd Party Inspection) |
| Tests | Chemical analysis, Tensile test, Intergranular corrosion test, Metallographic examination |
Applications
- Chemical processing equipment such as reactors, heat exchangers, piping, and fittings.
- Nuclear industry components, including fuel-cladding related tubing and other reactor-service parts.
- Acid-handling systems for sulfuric, hydrochloric, and other corrosive media.
- Marine and desalination equipment where seawater resistance is important.
- High-reliability industrial tubing where corrosion resistance and long service life are priorities.
