9 All-State®
No. 125 Economical
Silver Brazing Alloy For
Torch, Furnace, Induction or Resistance Heating Methods General
Characteristics All-State®
125 is a cadmium free 25% silver filler metal with limited ductility for both
ferrous and non-ferrous metal
joining where high ductility and impact strength is not a necessity. Joint color
as brazed is a light yellow. Medium
plastic range. Typical
Applications Recommended
for steel and copper alloys including most brasses. However, moderate ductility
feature requires that
dissimilar metal joints be in compression while cooling. Lower silver content
limits joint design to close fit-ups. Qualities
Tensile strength
—up
to 50,000 psi (35.16 kgs/mm2)
Working Temperature
—1265°-1430° F (685°-777°
C) Corrosion resistance
—good
AWS A5.8, Class BAg-37
Procedures Thoroughly
clean parts to be brazed. Joint clearance should not exceed .003". Apply All-State
110 or S-200 paste flux
to joint area. Heat joint area rapidly with slightly carburizing flame until flux
turns clear. Melt off enough 125 alloy
to fill joint completely. Keep torch in constant motion so as not to overheat.
Maximum brazing temperature is 1600°
F. Allow to cool slowly; remove flux residue with hot water.
Sizes 1/16"
(1.6 mm) in 4 oz. (.11 kg) coils and 2 oz. (.06 kg) kits with 1 oz. jar of 110
flux.
