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ER4047

AWS A5.10 ER4047
AWS A5.8 BAlSi-4
ASME SFA 5.10 ER4047
UNS A94047

ER4047 (commonly referred to as “718 aluminum” or AISi12) is an aluminum filler metal which contains approximately 12% silicon.
This alloy is commonly used not only in MIG or TIG applications, but also as a general purpose brazing alloy providing a free-flowing filler metal and good corrosion resistance. ER4047 is recommended for welding or brazing aluminum alloys: 1060, 1350, 3003, 3004, 3005, 5005, 5050,
6053, 6061, 6951 7005 and cast alloys 710.0 and 711.0. ER4047 has an approximate melting range of 1070°-1080°F and the post anodizing color tint is grayish-black.

TYPICAL WELD METAL CHEMISTRY (%)

-

ER4047

Si

11.0-13.0

Fe

0.80 max

Cu

0.30 max

Mn

0.15 max

Mg

0.10 max

Zn

0.20 max

Al

Balance

Others*

0.15 total max

*Be shall not exceed 0.0008 percent.