Introduction to Zirconium 60702 (R60702)
Zirconium 60702 (UNS R60702) is a high-purity commercial-grade zirconium alloy with excellent corrosion resistance, low thermal neutron absorption cross section, and good mechanical properties. Zirconium 60702 Plate Standard is widely used in the chemical industry, nuclear industry, medical equipment, and other fields.
ASTM Standard Specifications for Zirconium 60702 Plates
The production and inspection of Zirconium 60702 Plates must comply with a number of ASTM international standards, mainly involving chemical composition, mechanical properties, dimensional tolerances, and other aspects.
1. Chemical composition standard (ASTM B550)
| Elements | Zr+Hf (minimum) | Hf (maximum) | Fe+Cr (maximum) | H (maximum) | O (maximum) | N (maximum) | C (maximum) |
| Content | 99.2% | 4.5% | 0.2% | 0.005% | 0.16% | 0.025% | 0.05% |
Key requirements:
Zr+Hf ≥ 99.2% (to ensure high purity)
H (hydrogen) content ≤ 0.005% (to prevent hydrogen embrittlement)
O (oxygen) content ≤ 0.16% (affects strength and ductility)
2. Mechanical properties standard (ASTM B550)
| State | Tensile strength (MPa) | Yield strength (MPa) | Elongation (%) | Hardness (HV) |
| Annealed state | ≥ 379 | ≥ 207 | ≥ 16 | ≤ 150 |
| Cold rolled state | ≥ 483 | ≥ 345 | ≥ 12 | ≤ 180 |
Description:
Annealed: Suitable for corrosion resistance and welding applications.
Cold Worked: Higher strength, but reduced plasticity, so choose carefully.
3. Dimension tolerance standard (ASTM B551)
| Thickness (mm) | Width tolerance (mm) | Length tolerance (mm) | Flatness tolerance |
| 0.5-3.0 | ±1.0 | ±3.0 | ≤0.5% |
| 3.0-10.0 | ±1.5 | ±5.0 | ≤0.3% |
Key requirements:
Thickness tolerance: ±5% (conventional requirements, high-precision applications require stricter standards).
Surface finish: Ra ≤ 1.6μm is usually required (customizable for special purposes).
Main application areas of the zirconium 60702 plate
Chemical industry: Resistant to strong corrosive media such as hydrochloric acid, sulfuric acid, and acetic acid, used in reactors and heat exchangers.
Nuclear industry: used as nuclear fuel cladding material (low neutron absorption cross section).
Medical devices: surgical instruments, dental implants (good biocompatibility).
Aerospace: high temperature resistant parts, propulsion system components.
How to buy zirconium 60702 plates that meet ASTM standards?
Check the material certificate (MTC/COC) to ensure compliance with ASTM B550/B551.
Third-party testing (such as SGS/BV) verifies composition and mechanical properties.
Surface quality inspection: no defects such as cracks, oxide scale, scratches, etc.
Supplier qualifications: Choose manufacturers with experience in nuclear power/military supply.
Summary
The Zirconium 60702 Plate Standard strictly stipulates its chemical composition, mechanical properties, and dimensional tolerances, and is suitable for harsh environments such as high corrosion, high temperature, and the nuclear industry. When purchasing, you need to pay attention to material certification, test reports, and supplier qualifications to ensure product quality.
If you need technical parameters of zirconium 60702 plate or purchase consultation, please contact professional special metal material suppliers for detailed information.
