Zircalloy cladding is not commonly reused and neither is fission product zirconium, which could be used in cladding as its relatively weak radioactivity would be of no major concern inside a nuclear reactor. Despite its high yield and long live, Zr-93 is generally not deemed to be of major concern as it is not chemically mobile and emits little radiation.
Zircalloy cladding typically undergoes limited reuse, and fission product zirconium is rarely employed due to its low radioactivity levels within the reactor environment. Although Zr-93 has a high yield and long duration of activity, it is generally not viewed as a significant issue because it is chemically stable and emits little radiation.