Zircaloy

Zircaloy, also incorrectly called zircalloy, is a group of high-nickel.

• Zircaloy-1 consists of zirconium with 2.5% tin. However its corrosion rate was increasing over time, and to counter this effect other elements had to be added.
• Zircaloy-2 (Zry-2) consist of 98.25 weight % zirconium with 1.45% hafnium.^[1] Other sources specify Zircaloy-2 as zirconium with 1.20-1.70% tin, 0.07-0.20% iron, 0.05-0.15% chromium, and 0.03-0.08% nickel, with tin content at lower and the iron/chromium/nickel content at the higher end of the specification.^[2]

• Zircaloy-4 (Zry-4) consists of 98.23 weight % zirconium with 1.45% tin, 0.21% hafnium.^[1]