Elements (wt%)

1

2

3

4

5

6

7

8

9

10

Al

66.7

75.11

66.69

66.17

73.66

73.73

76

80.57

78.18

76.53

Si

4.22

2.79

4.22

3.98

3.51

3.02

1.02

1.5

1.87

1.66

Cr

0.88

0.72

1.88

0.91

1.92

0.98

0.98

0.31

0.46

0.65

Mn

9.91

9.23

8.92

9.82

8.16

7.7

7.7

6.51

6.01

6.86

Fe

18.29

12.15

18.29

19.12

12.75

14.57

14.3

11.11

13.48

14.3