UNS R60705 Zirconium Wire: Properties and Applications

UNS R60705 is a zirconium-niobium alloy commonly called zirconium 705. Wire in this grade may be considered for selected components when the specification, condition and service environment match the design. Material identity does not establish a guaranteed corrosion life, medical approval or nuclear qualification.

Wire standard and material identity

ASTM B550/B550M covers zirconium and zirconium alloy bar and wire, including R60705 within its scope. Specify the applicable edition, diameter and tolerance, delivery condition, surface, coil or straight length and required inspection records. Confirm chemistry and mechanical limits against the contracted standard and supplied-lot certificate.

ASTM B551/B551M addresses strip, sheet and plate; it is a different product-form specification. A standard for a titanium alloy, such as ISO 5832-3, is not a zirconium-wire specification.

Corrosion and fabrication

Zirconium alloys may be considered for certain chemical-service applications. Their performance depends on the chemical medium, concentration, temperature, contamination, flow, deposits and crevices. Fluoride-containing environments require particular caution. Avoid relying on a generic corrosion rate or assuming immunity to every acid, chloride or form of cracking.

Forming, joining and cleaning must be qualified for the component. Strength and ductility depend on wire condition and testing; nominal grade and chemical composition alone do not establish a safe operating temperature or fatigue life.

Application and documentation checklist

ItemConfirm for the order
WireGrade, standard and edition, dimensions, condition and surface.
ServiceMedium, temperature, loading, expected exposure and component geometry.
VerificationRequired chemical, mechanical, dimensional and additional tests.
RecordsLot identification and material certificate agreed with the purchaser.

Nuclear and aerospace applications impose project-specific material, traceability and qualification requirements. For a medical device, the manufacturer must separately evaluate material suitability, biological safety, MRI conditions and applicable regulations; this grade alone establishes none of those outcomes.

Frequently asked questions

Is R60705 wire automatically suitable for an implant?

No. Material selection and finished-device qualification require relevant specifications and evidence.

Does ASTM B550/B550M cover zirconium wire?

Yes, its scope includes zirconium and zirconium alloy bar and wire; confirm the agreed grade and edition.

Explore the zirconium wire category or request a quotation with the grade, dimensions, condition and documentation requirements.

Published by: Titanium Valleys
Technical review: General Manager of the Production Department
Quality review: Quality Inspection Department
Last reviewed: October 20, 2026 (before the latest content update; the updated content is pending review).