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SUMMARY.
TiBrazeAl-665, which is a
low-temperature filler metal
for brazing
titanium, titanium matrix
composites, and titanium to
copper, is offered
in the form of foil 50 ± 5
microns (0.002 inch)
thick.
FEATURES. Composition of
TiBrazeAl-665 foil is:
Al 96.80-97.65 wt.%
Cr 0.15-0.35 wt.%
Mg 2.2-2.8 wt.%
Liquidus temperature is
645°C (1193°F).
Solidus temperature is 607°C
(1125°F).
Brazing temperature
is 665-680°C (1229-1256°F)
Density is 2.68 g/cm3
(0.0968 lb/in3)
Coefficient of thermal
expansion is
23.8 x 10-6
m/[m·°C-1] (13.2
in/[in·°F])
Brazing:
-
in vacuum 10-4
Torr or better
-
induction or torch
brazing in air with the
flux RL3 A16
Shear strength of titanium
Grade 2 brazed joints is up
to 97 MPa (14 ksi) at room
temperature.
Shear strength of titanium
Grade 5 (Ti-6Al-4V) brazed
joints is up to 110 MPa (16 ksi)
at room temperature.
Shear strength of
titanium-to-copper brazed
joints is up to 77 MPa (11.2
ksi) at room temperature.
Typical applications are:
heat exchangers, medical
instruments, cooling system,
electronic housings, lining
and electrodes of galvanic
baths, and others.
The width of TiBrazeAl-665
foil is 6 inches (~150 mm).
The foil is supplied in the
form of 1-5 lbs rolls.
1 lb of the foil covers
about 33806 cm2
(5239 in2 ).
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