Table 20.2 Compositions of materials
Specification (wt%)
Value in analysis (wt%)
(a) Zircaloy-2 (JIS H 4751)
H
0.0025
Max.
0.0025
B
0.00005
Max.
0.00005
C
0.027
Max.
0.027
N
0.008
Max.
0.008
Mg
0.002
Max.
0.002
Al
0.0075
Max.
0.0075
Si
0.012
Max.
0.012
Ca
0.003
Max.
0.003
Ti
0.005
Max.
0.005
Cr
0.05
–
0.15
0.10
Mn
0.005
Max.
0.005
Fe
0.07
–
0.20
0.135
Co
0.002
Max.
0.002
Ni
0.03
–
0.08
0.055
Cu
0.005
Max.
0.005
Zr
Balance
98.1456
Nb
0.01
Max.
0.01
Mo
0.005
Max.
0.005
Cd
0.00005
Max.
0.00005
Sn
1.20
–
1.70
1.45
Hf
0.01
Max.
0.01
W
0.01
Max.
0.01
U
0.00035
Max.
0.00035
(b) Zircaloy-4 (JIS H 4751)
H
0.0025
Max.
0.0025
B
0.00005
Max.
0.00005
C
0.027
Max.
0.027
N
0.008
Max.
0.008
Mg
0.002
Max.
0.002
Al
0.0075
Max.
0.0075
Si
0.012
Max.
0.012
Ca
0.003
Max.
0.003
Ti
0.005
Max.
0.005
Cr
0.07
–
0.13
0.10
Mn
0.005
Max.
0.005
Fe
0.18
–
0.24
0.21
Co
0.002
Max.
0.002
Ni
0.007
Max.
0.007
Cu
0.005
Max.
0.005
Zr
Balance
98.1186
Nb
0.01
Max.
0.01
(continued)
236
K. Yamamoto et al.