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Solder standard literature cite USA

15-06-2009

 

FEDERAL SPECIFICATIONS AND STANDARDS（M.I.L）
QQ－S－571ESOLDER－ALLOY COMPOSITIONS
Compo
sition		 Tin Lead Anti-
mony		 Bis-
muth,
max		 Sllyer Copper,
max		 Iron
max		 Zinc
max		 Alumi-
num,
max		 Arse-
nic,
max		 Cad-
nlum
nax		 Total
of alt
ofhors
max
Sn 63 62.5
to
63.5		 Remalnder 0.20
to
0.50		 0.25 --- 0.08 0.02 0.005 0.005 0.03 --- 0.08
Sn 60 59.5
to
61.5		 Remalnder 0.20
to
0.50		 0.25 --- 0.08 0.02 0.005 0.005 0.03 --- 0.08
Sn 50 49.5
to
51.5		 Remalnder 0.20
to
0.50		 0.25 --- 0.08 0.02 0.005 0.005 0.03 --- 0.08
Sn 40 39.5
to
41.5		 Remalnder 0.20
to
0.50		 0.25 --- 0.08 0.02 0.005 0.005 0.02 --- 0.08
Sn 30 29.5
to
31.5		 Remalnder 1.4
to
1.8		 0.25 --- 0.08 0.02 0.005 0.005 0.02 --- 0.08
Sn 20 19.5
to
21.5		 Remalnder 0.8
to
1.2		 0.25 --- 0.08 0.02 0.005 0.005 0.02 --- 0.08

 

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