Alloy

Al

Si

Mn

Fe

Fe/Mn ratio

1

85.4

13.3

1.2

0.1

0.1

2

84.2

13.5

1.1

1.2

1.1

3

81.1

13.4

1.1

4.4

4.0

4

78.2

13.5

1.2

7.1

5.9

5

75.1

13.6

1.2

10.1

8.4