Products Description
Zirconium 702 tube is a tubular material made of industrial-grade zirconium (Zr702). It has excellent corrosion resistance, biocompatibility and medium and high temperature strength. It is widely used in chemical, nuclear power, medical and marine engineering.
Why choose zirconium 702 tube?
✔ Ultimate solution for corrosion scenarios: In media such as hydrochloric acid and boiling sulfuric acid, the cost performance is better than Hastelloy.
✔ Lightweight advantage: 20% lighter than stainless steel, reducing structural load.
✔ Long life economy: Although the initial cost is high, the full life cycle cost is lower than that of cheap materials that are frequently replaced.
Features of Zirconium 702 pipe
✅ Extreme corrosion resistance:
In comparison to stainless steel and titanium alloy, it operates significantly better in highly corrosive environments like hydrochloric acid, sulfuric acid, and alkalis.
It also experiences no corrosion in seawater; therefore, it is the ideal material for marine equipment.
✅ Nuclear grade safety:
Low thermal neutron absorption cross section (0.18b), used for nuclear fuel cladding tubes and reactor structural parts.
✅ Biocompatibility:
Complies with ISO 5832-2 standard, suitable for human implant devices (such as orthopedic screws, dental implants).
✅ Mechanical properties:
Tensile strength ≥380 MPa, elongation ≥16%, both strength and machinability.
Applications of Zirconium 702 Pipe
Nuclear Reactors: The primary use of Zirconium 702 pipe is for the construction of fuel cladding and reactor coolant piping in nuclear reactors. It functions to contain the fuel rods and hydraulically drive the coolant flow.
Chemical processing: Zirconium 702 pipe is quite useful in the chemical processing business for dealing with the harsh and corrosively reacting fluids due to its exceptional strength against chemicals.
Power Generation: The material is also used in non-renewable power generation facilities in inundated water and temperature settings.
Specification of Zirconium 702 pipe
|
Technique |
Zirconium welded tube, zirconium seamless tube |
|
Grade |
R60702, R60704, R60705 |
|
Standard |
ASTM B523, ASTM B353, ASTM B658 |
|
Size |
OD(0.5-200)mm*WT(0.1-20)mm*L(MAX 20000)mm |
|
Shape |
Round, square |
|
Surface |
pickling annealing (RA), bright polishing (BA) optional |
|
Processing |
Hot rolling, cold rolling, drawing, extruding |
FAQ about Zr702 tube
1. From what alloy is the zirconium 702 tube made of?
The tubes of zirconium 702 have medium to high temperature strength due to high biocompatibility, and exceptional corrosion resistance. These features make it zirconium alloy ZR702 (Zr ≤ 99.2%) which is used in the chemical and nuclear power industries.
2. List down the highlights of zirconium 702 tube.
✅ Super Corrosion Resistance. Unlike other titanium alloys and stainless steels, Zirconium 702 tube can withstand vigorous boiling hydrochloric and sulfuric acid attacks.
✅ Nuclear Grade Safety. Due to its low thermal neutron absorption cross section, it can be classified as a major constituent for nuclear reactors.
✅ Biocompatibility. For a material to be regarded as Biocompatible, it has to be considered under ISO 5832-2 and deemed fit for implantation.
✅ Outstanding Mechanical Properties. Zirconium 702 posseses outstanding mechanical properties. specially its minimum tensile strength which is bow forecasted to be greater than 380 MPa.
3. What are the primary application areas of zirconium 702 tube?
🔹 Medical Devices: Dental implants, and artificial joints.
🔹 Chemical Industry: Pickling equipment, reactors for heat exchanges.
🔹 Nuclear Power: Nuclear Fuel cladding tube, Core structure.
🔹 Marine Engineering: Deep-sea equipment, Seawater desalination devices.
4. How does zirconium 702 tube compare to titanium tube?
Zirconium 702 tube vs Titanium tube (Gr2):
Characteristics:
Hydrochloric acid resistance: Zirconium 702 tube is tolerant to boiling point concentration while titanium tube is not resistant to low concentration below 35°C.
Cost: About 800-1200 yuan/kg for zirconium, while around 400-600 yuan/kg for titanium.
Biocompatibility: Both excel.
Density: 6.51g/cm³ for zirconium 702 and 4.51g/cm³ for titanium.
5. What media can zicron 702 withstand?
✔ Nitric acid, phosphoric acid, and Sulfuric acid (70% concentration) as well as any concentration of hydrochloric acid and organic acids.
✔ Zirconium 702 is unapable of resisting hydrofluoric acid (total avoidance) or concentrated alkali (less than or equal to 40% NaOH) but has some level of resistance.
✔ Unmatched Property. Zirconium withstands boiling hydrochloric acid better than any other metal.
6. What are the precautions for using zirconium 702 tubes?
⚠️ Zirconium 702 has the strictest avoidance policy with regards to hydrofluoric acid (HF) contact. Even at low parts per million, it leads to rapid corrosion.
⚠️ All other requirements:
Cleaners: fluorinated cleaning agents are strictly prohibited Cutting: as with all other tools, terbaik carbide cutters are required Welding: only argon shielded welding (TIG) will be accepted.
7. What is the price of zirconium 702 tubes?
Around 800-1200 yuan/kg (price varies with specifications).
While the initial investment may seem steep, the service life far outweighs that of stainless steel by 5-10 times. Therefore, the full life cycle cost is lower.
8. How to judge the quality of zirconium 702 tubes?
The most important:
Chemical composition: Zr+Hf≥99.2%, Fe≤0.2%
Mechanical properties: بز tensile strength ≥380MPa, elongation ≥16%
Surface quality: free from cracks, folds and other defects.
9. Can zirconium 702 tubes be customized?
✅ Customization is supported:
Size: outer diameter 3-150mm, wall thickness 0.3-10mm
State: annealed (RA), bright annealed (BA)
Special requirements: non-destructive testing report can be provided
10. What are the special advantages of zirconium 702 tubes in the field of nuclear power?
🔋 Irreplaceability:
Thermal neutron absorption cross section is only 0.18b (stainless steel is 2.3b)
Excellent radiation resistance
Still maintain good mechanical properties at high temperatures
11. How to store and maintain zirconium 702 tubes?
📦 Storage requirements:
Store in a dry environment
Avoid contact with carbon steel (to prevent iron contamination)
It is recommended to store in the original packaging
🛠 Maintenance recommendations:
Check the surface condition regularly
If local corrosion is found, it should be dealt with promptly
Use neutral detergent for cleaning
12. What is the service life of zirconium 702 tube?
In chemical corrosive environment: usually up to 15-20 years
In nuclear power plants: the design life of fuel cladding tubes is 4-6 years (depending on fuel consumption)
In medical implants: can be used for life
13. What are the precautions for welding zirconium 702 tubes?
Key points:
High-purity argon protection must be used (purity ≥99.999%)
Thorough cleaning before welding (fluorinated solvents are prohibited)
It is recommended to use zirconium-specific welding wire (such as Zr702)
Acid pickling is required after welding
14. What is the MOQ?
A: Depends on quantity, generally, no MOQ limit.
15.How to pay for it?
A: A bank transfer (T/T) will be acceptable.
16.What is the delivery time?
A: around 7-20 days which depends on the quantity and production.
17.What is the package?
A: cartoon case or plywood case.
18.What is the lead time?
A: from order placed to cargo receiving will take around 10-25 days.
19.What is the delivery method?
A: Generally, we send cargo by UPS, DHL or FedEx. Also, we can send by sea to seaport or by air to the closest airport.
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