Zirconium Alloy Tubes and Pipes
Zirconium is a hard, lustrous, silvery metal extracted from its ores — the oxide or zircon, ZrSiO4 — by conversion to the tetrahalide followed by reduction with magnesium. The metal is extremely corrosion resistant thanks to a stable oxide film, and is unaffected by acids (with the exception of hydrofluoric acid) and alkalis. This corrosion resistance makes zirconium widely used in the chemical industry wherever corrosive agents are present, while its excellent high-temperature properties and low neutron absorption make it a key material in nuclear reactor construction and as a lining in jet engines. As an alloying element, zirconium also improves the mechanical properties of other alloys.
Specification & Standards
| Products | Grades | Size | Standards |
|---|---|---|---|
| Zirconium Seamless Tube/Pipe Zirconium Welded Tube/Pipe |
Zirconium 702 (R60702) Zirconium 704 (R60704) Zirconium 705 (R60705) Zircaloy-2 (R60802) Zircaloy-4 (R60804) |
Seamless tube OD: 0.6 – 89mm Welded tube OD: ≥89mm Wall thickness: ≥0.2mm Length: 100mm – 12000mm |
ASTM B658/B658M ASTM B523/B523M ASTM B353/B353M |
Quality Testing We Provide
- Chemical composition analysis
- Eddy current testing
- Mechanical properties testing
- Dimensional inspection
- Ultrasonic flaw detection
- Flattening test
- Bending test
- Flaring test
Chemical Composition by Grade (% max)
| UNS | Grade | Zr + Hf (min) | Hafnium | Fe + Cr | Tin | Hydrogen | Nitrogen | Carbon | Niobium | Oxygen |
|---|---|---|---|---|---|---|---|---|---|---|
| R60702 | Zr702 | 99.2 | 4.5 | 0.2 max | – | 0.005 | 0.025 | 0.05 | – | 0.16 |
| R60704 | Zr704 | 97.5 | 4.5 | 0.2-0.4 | 1.0-2.0 | 0.005 | 0.025 | 0.05 | – | 0.18 |
| R60705 | Zr705 | 95.5 | 4.5 | 0.2 max | – | 0.005 | 0.025 | 0.05 | 2.0-3.0 | 0.18 |