ER4043 Aluminum Welding Wire | High Fluidity, Low Crack Sensitivity

AWS Classification: AWS A5.10 ER4043

Application

  • Shipbuilding
  • Energy Industry
  • Pressure Vessel
  • Heavy Machinery

Applications:
Used for welding aluminum alloys in industries such as shipbuilding, chemicals, molds, metallurgy, and locomotives.

Features:
THS-Al4043 is an aluminum-silicon alloy welding wire with low sensitivity to thermal cracking, making it suitable for welding heat-treatable base materials. This welding wire offers excellent welding process performance, producing aesthetically pleasing welds with stable arcs and minimal spatter.

 Chemical Composition of Wire:       (Wt. %)

Items

Si

Fe

Cu

Mn

Mg

Requirements

4.5-6.0

≤0.8

≤0.30

≤0.05

≤0.05

Items

Zn

Ti

Al

Be

other

Requirements

≤0.10

≤0.2

-

≤0.0003

≤0.15

 

Precautions:

  1. The oxide, oil, moisture, and other impurities on the welding joint and wire must be removed before welding.
  2. For thick plate welding, preheat the material to 100°C - 200°C before welding.


ElementCSiMnCrNi
Value≤0.03≤0.901.0-2.519.0-21.09.0-11.0
Unit%%%%%