<Federal Specifications And Standards (M.I.L.)>

Solder-Alloy Compositions

Composition

Tin

Lead

Anit-mony

Bismuth, max

Cooper, max

Iron, max

Zinc, max

Aluminum, max

Arsenic, max

Arsenic, max

Calcium, max

Total of all others, max

Sn63

62.5 to 63.5

Remainder

0.20 to 0.50

0.25

0.08

0.02

0.005

0.005

0.02

0.03

0.003

0.08

SN60

59.5 to 61.5

Remainder

0.20 to 0.50

0.25

0.08

0.02

0.005

0.005

0.02

0.03

0.004

0.08

Sn50

49.5 to 51.5

Remainder

0.20 to 0.50

0.25

0.08

0.02

0.005

0.005

0.02

0.03

0.004

0.08

Sn40

39.5 to 41.5

Remainder

0.20 to 0.50

0.25

0.08

0.02

0.005

0.005

0.02

0.02

0.003

0.08

Sn35

34.5 to 36.5

Remainder

1.6 to 2.0

0.25

0.08

0.02

0.005

0.005

0.02

0.02

Nil

0.08

Sn30

39.5 to 31.5

Remainder

1.4-1.8

0.25

0.08

0.02

0.005

0.005

0.02

0.02

Nil

0.08