R60705 vs R60702 Zirconium Wire: Grade Comparison
- UNS R60705 Zirconium Wire
R60705 and R60702 are different zirconium material grades used in bar and wire specifications. R60702 is unalloyed zirconium; R60705 is a zirconium-niobium alloy. Select the grade using the actual drawing, required properties, manufacturing condition and service environment.
Material identity and wire specification
ASTM B550/B550M covers zirconium and zirconium alloy bar and wire, including UNS R60702 and UNS R60705. Confirm the edition, wire diameter and tolerance, condition and product form for the order. Chemistry and mechanical-property requirements depend on the specified grade and condition; use the contracted edition and lot certificate rather than applying one set of limits to both grades.
Compare the relevant requirements
| Selection factor | What to compare |
|---|---|
| Mechanical properties | Required strength and ductility under the same test, size and condition. |
| Forming and joining | Wire condition, geometry, process qualification and representative tests. |
| Corrosion | Actual medium, concentration, temperature, impurities, crevices and exposure. |
| Documentation | Grade, specification edition, lot traceability and agreed test results. |
A generic percentage strength advantage or corrosion-rate comparison is not sufficient for an order. Verify the relevant acceptance values and the finished component’s design requirements. Mechanical or corrosion results obtained for one product form or condition do not automatically apply to another.
Nuclear and medical boundaries
Industrial R60702 or R60705 identification alone does not establish nuclear-grade material, a particular hafnium limit, reactor qualification or suitability for a medical device. Such projects require their own material specifications, traceability, inspections and finished-component evaluations. Obtain the applicable project requirements before selecting the material.
Frequently asked questions
Are R60702 and R60705 interchangeable?
No. Compare the specified grade, mechanical requirements, corrosion conditions and fabrication needs.
Does ASTM B550 alone qualify wire for nuclear service?
No. Confirm the additional material and project-specific requirements.
Explore our zirconium wire category or request a quotation with the grade, dimensions, service and documentation requirements.
Published by: Titanium Valleys
Technical and quality review: The updated content is pending review.