Welding 6xxx alloys, radiators and air conditioning components, general repair and maintenance, water and gas tight applications, post weld age, post weld heat treat & age applications, automotive/motorcycle frames, sports products - scooters/bicycles, general repair and maintenance, aerospace hardware, ladders and frames, alloy 356 castings, wheels, ship decks, furniture

Main Application

TYPICAL CHEMICAL VALUES*

Welding Positions:

• AWS A5.10, ER4943, R4943
• ASME SFA 5.10, ER4943, R4943
• SFA 5.10
• CWB, ER4943 (0.9 mm - 1.6 mm)
• ABS, ER4943, 100% Ar or Ar/He Mix (0.035” - 0.062”)
• ABS, R4943, 100% Ar (0.062” - 0.156”)
• vd TUV 1153

Maintaining a proper welding procedure - including pre-heat and interpass temperatures - may be
critical depending on the type and thickness of aluminum being welded.

See Above: This information was determined by welding using 100%Argon shielding gas with a flow rate between
35-50 cfh (14-24 l/min).

AVAILABLE DIAMETERS AND PACKAGES: For a complete list of diameters and packaging, please contact

Classification:
AWS A5.10: ER4943, R4943

MaxalMig

CONFORMANCES AND APPROVALS

TYPICAL PROPERTIES

Description

Alloy 4943 filler metal was formulated to be welded with the same weld procedure specifications as 4043 and 4643, and does not depend upon dilution from the base metal during welding to increase the strength of the weld deposit, while maintaining the same weld characteristics and benefits of 4043 and 4643.

- 25% higher UTS & 50% higher yield strength than 4043 in the as welded condition (typical) - Moderate/high strength (35 ksi typical)

- Low melting temperature/high fluidity

- Low welding smut and discoloration

- Low ductility, formability, and lower toughness (similar to 4043)

- Moderate electrical conductivity and thermal conductivity

- Post weld fully heat treatable requiring no base metal dilution

- Excellent corrosion resistance

- Low shrinkage rate/reduced distortion

- Low hot cracking sensitivity in most applications

Features/Benefits

100% Argon (Ar) or Argon/Helium mixtures, typical: GMAW - 35-50 cfh (14-24 l/min),
GTAW 20-30 cfh (10-14 l/min).

Direct Current Electrode Positive (DCEP) for GMAW, AC for GTAW

0.030” (0.8 mm), 0.035” (0.9 mm), 3/64” (1.2 mm), 1/16” (1.6 mm), 3/32” (2.4 mm),
1/8” (3.2 mm), 5/32” (4.0 mm)

Product should be stored in a dry, enclosed environment, and in its original intact packaging

STORAGE

STANDARD DIAMETERS

TYPE OF CURRENT

SHIELDING GAS