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ER4047 was originally developed as a
brazing alloy (718) to take advantage of
its low melting point and narrow freezing
range. It has a higher silicon content than
its counterpart ER4043 which provides for
increased fluidity and reduced shrinkage
in the weld. ER4047 produces bright and
almost smut-free welds. This alloy may be
used in applications of sustained elevated
temperatures.
Applications
• Welding filler wire
AWS Specification
AWS A5.10/A5.10M:1999(R2007)
AWS Classification ER4047
Welding Current
DCEP
Typical Wire Chemistry
Si 11.0 - 13.0
Fe 0.8
Cu 0.30
Mn 0.15
Mg 0.10
Zn 0.20
OTHER 0.15
AI REM
Typical Properties
Melting range 1070 - 1080ºF
Conductivity 41% IACS ( - O)
Density 0.096 lbs/cu in
Anodized color Gray - Black
Tensile Strength, ksi 27
Welding Positions
All positions
Available Diameters GMAW and
suggested Operating Range in Amps
.030" 100 - 120
.035" 110 - 170
3/64" 150 - 190
1/16" 200 - 300
3/32" 320 - 330
Available Diameters GTAW
1/16", 3/32", 1/8" & 5/32"
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this alloy >
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