Rolled Zirconium Tubing
In modern extreme chemical industries, strong acid and alkali medium transportation, nuclear energy equipment, and high-purity high-temperature reaction systems, when titanium alloy or stainless steel pipe fittings fail due to severe corrosion, pitting or crevice corrosion, the special metal Zirconium (Zirconium) shows an incomparable chemical protection barrier. As shown in the physical picture of the product, our professionally presented high-purity precision zirconium coil/thin-walled welded zirconium tube and special zirconium component assemblies (Rolled Zirconium Tubing.
As the "king of corrosion resistance" in the family of active metals, industrial pure zirconium (such as UNS R60702/Zr702) will instantly form a layer of extremely dense, self-healing Zirconia (ZrO₂) passivation film. This unique material characteristic enables it to show an astonishing performance of near zero corrosion rate in strongly corrosive media such as hydrochloric acid (HCl), sulfuric acid (H₂SO4), nitric acid (HNO3) and acetic acid. This zirconium coil tube is made of high-quality UNS R60702 zirconium sheet, refined by precision roll forming, high-energy beam/micro-beam shielded welding (EBW/TIG), strict weld leveling and vacuum stress relief annealing process, and is equipped with precision CNC turning zirconium nozzles, zirconium positioning rings and fastening screws. It not only effectively breaks the bottleneck of difficult manufacturing and high cost of large-diameter ultra-thin-walled seamless zirconium pipes, but also provides a cost-effective solution for high-efficiency corrosion-resistant components for European, American and global B2B buyers.
In the manufacturing and control process, we select high-purity titanium/zirconium sponge smelting plates with high density and strict control of impurity elements. The purity of zirconium plus hafnium is greater than or equal to 99.2%. The weld seam of the coil pipe has passed 100% non-destructive testing (NDT) and strict pressure air tightness testing to ensure that it is waterproof under strong acid and alkali and high-pressure conveying conditions. The surface has undergone professional pickling passivation and ultrasonic degreasing treatment, which not only presents a bright and delicate metal texture, but also greatly improves the pitting corrosion resistance and stress corrosion cracking (SCC) resistance of the tube under extreme media.
In order to facilitate project evaluation by global engineers and technicians and purchasing managers, we have sorted out the core technical parameters and specifications of this series of zirconium coils and special components as follows:
Core parameters and technical specification table
| Property | Value | Advantages |
| Product Name | Zirconium coil tube/welded zirconium tube/zirconium casing assembly (Rolled & Welded Zirconium Tubing) | Breaks through the processing limit of large-diameter thin-walled seamless pipes.Excellent cost-effective corrosion-resistant pipe solution material |
| Grade | UNS R60702 (Zr702/industrial pure zirconium) UNS R60705 (Zr705/zirconium-niobium alloy) | Zr702 has excellent comprehensive corrosion resistance; Zr705 provides higher yield strength and tensile strength |
| Purity | Zr Hf ≥ 99. 2% (hafnium Hf ≤ 4. 5%) | Strictly control impurities such as iron, chromium, hydrogen, nitrogen, oxygen, etc., to ensure intergranular corrosion protection |
| Density | 6.51 g/cm³ | Moderate Density, high structural strength, good thermal conductivity |
| Melting Point | 1855 °C (3371 ° F) | Extremely high thermal resistance boundary and thermal stability |
| CTE | 5.7 × 10⁻⁶ / K (20–1000℃) | Low thermal rate, excellent thermal shock resistance |
| Dimensions | Outer diameter: Ø 30 mm-Ø 600 mm; Wall thickness: 0.5 mm-4.0 mm; Customization of single length on demand | Supports large diameter, non-standard size, special-shaped flanging and surface grooving/drilling custom |
| Processing | High-purity zirconium plate precision shearing > roll coil forming > high energy beam/shielding gas micro-beam welding > weld dressing > straightening and high vacuum annealing | Weld microstructure is uniform, completely releasing Processing internal stress, eliminating hidden dangers of intergranular corrosion |
| Surface Finish | Pickled/Passivated/Polished etc | Dense protective film formed on the surface, leaving no oil or dirt, meeting the ultra-clean industrial standards. |
| Standards | ASTM B523/ASTM B551/ASME SB523 (International Standard for Zirconium and Zirconium Alloy Seamless and Welded Tubes) | In full compliance with European, American and international chemical plant and pressure vessel specifications |
| Working Temp | Strong corrosive strong acid/strong alkali medium: ≤ 350 °C; Protective high-temperature heating: ≤ 800 °C | Performs well in oxygen-free or strongly corrosive liquids; Exceeding 500 °C in the air will intensify the oxidation. |
In-depth analysis of industry application and procurement value
In actual industrial scenarios, high-purity precision zirconium coils and special assemblies have extremely wide applications. First of all, in the basic chemical and fine chemical equipment (Chemical Processing Industry-CPI), they are widely used in Acetic Acid synthesis units, formic acid concentration systems, hydrochloric acid recovery condensers and hydrogen peroxide production lines, which can completely avoid titanium or local corrosion and slag removal of duplex stainless steel. Secondly, in Pharmaceutical and Biotech (Pharmaceutical & Biotech), zirconium materials are non-toxic, free of metal ion dissolution, and have no biological drug components, making them an excellent choice for high-purity medium delivery and reaction sleeves. In addition, in Nuclear and Nuclear power systems (Nuclear & Energy Sector), the extremely low thermal neutron absorption cross section and excellent hydrothermal corrosion resistance of zirconium alloys make them an irreplaceable strategic material for the core components of Nuclear reactors.
We are well aware of the high level of supply chain compliance and traceability system of overseas buyers. Each batch of zirconium coils and assemblies is accompanied by the original material inspection report (MTC) in compliance with EN 10204 3.1 standard, including complete chemical composition spectral analysis, tensile test data and 100% weld ray/penetration test records. In terms of packaging and delivery, the interior and outer walls of the pipe fittings are suspended and isolated with high-density EPE pearl cotton, and are packed in export-grade hard fumigation-free wooden boxes after vacuum moisture-proof packaging. Whether it is non-standard proofing for scientific research projects or batch engineering procurement for large-scale chemical projects, we can provide you with fast response and accurate delivery based on engineering drawings (STEP/DWG/PDF).
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