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Qualitek Standard Alloy Compositions Leaded Chemistries

Quality solder begins with quality powder and alloys. All Qualitek soldering alloys exceed J-STD-006 and SMTA B-32 Specifications

STANDARD ALLOY COMPOSITIONS
Alloy Composition
Melting Range
(°C)
Melting Range
(°F)
BAR
WIRE
PASTE
SPHERE
Sn63/Pb37
183 E
361 E
Sn60/Pb40
183-190
361-374
Sn50/Pb50
183-214
361-420
   
Sn45/Pb55
183-225
361-440
   
Sn40/Pb60
183-238
361-460
 
Sn20/Pb80
183-280
361-536
   
Sn10/Pb90
268-302
514-576
Sn62/Pb36/Ag2
179-189
345-372
Sn10/Pb88/Ag2
268-299
514-570
xxE-Eutectic

Above alloys subject to availability at time of inquiry and may require a minimum PO.