化学成分%
Al
Zn
Mn
Si
Fe
Cu
Ni
Zr
ZK61M
≦0.05
5.0-6.0
≦0.10
≦0.005
0.30-0.90
ZK61S
-
4.8-6.2
0.45-0.80
ME20M
≦0.20
≦0.30
1.3-2.2
≦0.007