Creep deformation of materials in light water reactors (LWRs) - Materials' Ageing and Degradation in Light Water Reactors - page 65

Table 3.2 Typical composition of some zirconium base alloys

Alloy Nominal chemical composition (wt.%) Component Type of reactor

Sn Fe Cr Ni O Others Zr

Zircaloy-2
(UNS grade R60802)

1.5 0.15 0.1 0.05 0.1 Bal Fuel clad, channel,

calandria tube

BWR

Zircaloy-4
(UNS grade R60804)

1.5 0.2 0.1 0.1 Bal Guide tube,

instrument tube,
calandria tube

PWR

ZIRLO 1 0.1 0.1 1 Nb Bal Fuel clad, spacers PWR

M5, E110 0.1 1 Nb Bal Fuel clad, spacers PWR WWER

E635 1.2 0.35 0.1 1 Nb Bal Fuel clad WWER

HANA 0.4 0.2 0.1 0.1 1.5 Nb Bal Fuel clad

Zr-2.5wt.%Nb
(UNS Grade R60904)

0.1 2.5 Nb Bal Pressure tube

EXCEL alloy 3.5 0.8 Mo

0.8 Nb

Bal