MAXAL 4943
(Revised 120831)
Aluminum Association registered, AWS A5.10
Alloy 4943 filler metal was designed to provide a high strength solution with the ease of welding and other advantages
of 4043. Alloy 4043 filler metal is a popular aluminum/silicon filler alloy for general purpose welding applications but can
show significant variability in strength based on welding conditions and the level of base metal dilution. Alloy 4943 filler
metal was formulated to be welded with the same weld procedure specifications as 4043, address 4043 shortcomings
while maintaining the same excellent corrosion characteristics, low melting temperature, low shrinkage rate, higher
fluidity, and low hot cracking sensitivity in most applications. Welds exhibit low welding smut and low discoloration.
MAXAL MIG electrodes have precisely controlled wire diameter, cast and helix, increased column strength and a
surface condition that optimizes feedability. These features produce good commutation of electricity, reduced burn
backs and produce a stable arc. The surface condition and alloy content control also produces a TIG product with
excellent weldability and operator appeal.
Refer to the MAXAL filler metal selection chart for further guidance in selecting filler metals for welding specific
base metals.
APPLICATIONS:




Welding 1xxx, 3xxx, 4xxx, 6xxx alloys
Automotive/motorcycle frames
Wheels
Ship decks




Sports products - scooters/bicycles
General repair and maintenance
Alloy 356 Castings
Ladders and frames
SHIELDING GAS: 100% Argon (Ar) or Argon/Helium mixtures
STANDARD DIAMETERS: 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), 3/16” (4.8 mm)
STORAGE: Product should be stored in a dry, enclosed environment, and in its original intact packaging
ALLOY CLASSIFICATION COMPOSITION
REQUIREMENT (WEIGHT PERCENT):
Weld Metal Analysis
Silicon (Si)
Iron (Fe)
Copper (Cu)
Strength Comparison, 4043 vs. 4943
(All weld metal, no base metal dilution)
4943
5.0-6.0
0.40
0.10
Manganese (Mn)
Magnesium (Mg)
Zinc (Zn)
Titanium (Ti)
Beryllium (Be)
Others Each
Others Total
Aluminum (Al)
0.05
0.30-0.50
0.10
0.15
<0.0003
0.05
0.15
Remainder
*Unless noted-single values are maximums.
Insufficient dilution can be a concern with alloy 4043, which can result
in low weld strength. Alloy 4943 significantly reduces the impact of
dilution on weld strength in as-welded, post weld aged and T6.
Typical Properties
Melting Range
Density
As-Welded Tensile Strength
Shear Strength
Anodized Color
Elevated T° Application
1065-1170°F
0.097 lbs/in3
35 Ksi
21 Ksi
Grey
YES
*welds with 6061 base plate
Maxal • 1631 International Drive • Traverse City, MI 49686 USA • www.Maxal.com
PH: (231) 933-1234(Test
• FX:
data(231)
for post933-6110
weld artificially aged condition)
Customer Service: 1-800-424-1543
MAXAL 4943
MIG EQUIPMENT SET-UP PARAMETERS:
The chart below provides approximate welding parameters as a starting point only. Qualified welding procedures utilizing
tested practices should be developed for actual production weldments.
Diameter
Inches
(mm)
Base Material
Thickness
Inches
(mm)
Amps
4xxx
5xxx
Volts
4xxx
5xxx
Wire-Feed
Speed (ipm)
4xxx
5xxx
0.030
0.030
0.030
0.030
0.030
(0.8)
(0.8)
(0.8)
(0.8)
(0.8)
1/16
3/32
1/8
3/16
1/4
(1.6)
(2.4)
(3.2)
(4.8)
(6.4)
90
110
130
150
175
100
120
140
160
185
20
22
23
24
24
18
21
21
22
22
260
350
450
550
650
300
400
500
600
700
0.035
0.035
0.035
(0.9)
(0.9)
(0.9)
1/16
1/8
1/4
(1.6)
(3.2)
(6.4)
90
130
170
100
140
180
23
24
25
21
22
23
300
400
500
350
450
600
3/64
3/64
3/64
3/64
(1.2)
(1.2)
(1.2)
(1.2)
3/32
1/8
1/4
3/8
(2.4)
(3.2)
(6.4)
(9.5)
110
150
190
220
120
160
220
230
25
26
26
27
24
25
25
25
170
270
320
390
220
330
370
450
1/16
1/16
1/16
1/16
1/16
(1.6)
(1.6)
(1.6)
(1.6)
(1.6)
1/4
3/8
1/2
3/4
1
(6.4)
(9.5)
(12.7)
(19.1)
(25.4)
200
230
260
280
300
210
240
270
290
310
26
27
28
29
30
24
25
26
27
28
170
200
240
260
280
200
230
270
300
320
STANDARD DIAMETERS AND PACKAGES: For a complete list of diameters and packaging, please call (800) 346-2529.
Diameter
1-lb.
12-lb.
16-lb.
Spool
Reel
Reel
Pats and Part numbers
16-lb.
22-lb.
Plastic
Plastic
100-lb.
300-lb.
Mini-Drum
Drum
36-In Cut
Length
(1 lb)
36-In Cut
Length (10
lb)
Inches
(mm)
0.030
(0.8)
0.035
(0.9)
0.040
(1.0)
3/64
(1.2)
1/16
(1.6)
3/32
(2.4)
494309470
1/8
(3.2)
494312570
5/32
(4.0)
3/16
(4.8)
494303504
494303512
494303512P22 494303523L
494303523
494304704
494304712
494304712P22 494304723L
494304723
494306212
494306212P22 494306223L
494306223
300 lb drum dimensions: diameter = 23-1/2”; height = 36”
100 lb drum dimensions: diameter = 23-1/2”; height = 18”
CONFORMANCES AND APPROVALS:
AWS A5.10
CE
CPD
ISO 9001:2008
*The information contained or otherwise referenced herein is presented only as “typical” without guarantee or warranty, and Maxal expressly disclaims
any liability incurred from any reliance thereon. Typical data are obtained when welded and tested in accordance with AWS A5.10 specification. Other
tests and procedures may produce different results. No data is to be construed as a recommendation for any welding condition or technique not controlled by Maxal.
Maxal • 1631 International Drive • Traverse City, MI 49686 USA • www.Maxal.com
PH: (231) 933-1234 • FX: (231) 933-6110
Customer Service: 1-800-424-1543
494306270