Aluminum 4043


INTRODUCTION

Aufhauser Aluminum 4043 is one of the oldest and most widely used welding and brazing alloys. AL4043 can be classed as a general purpose-type filler alloy. The silicon additions result in improved fluidity (wetting action) to make the alloy a preferred choice by welders. The alloy is less sensitive to weld cracking and produces brighter, almost smut free welds.

 

APPLICATIONS

  • Welding filler wire
  • Spray and flame metallizing wire
  • Recommended for welding 3003, 3004, 5052, 6061, 6063, and casting alloys 43, 355, 356, and 214

 

GENERAL INFORMATION

  • Non-Heat treatable
  • Principle alloying elements: Silicon
  • Bright finish
  • ISO designation: AlSi5

 

Chemical Composition
Silicon Iron Copper Beryllium Manganese Magnesium Zinc Titanium Each Total
Other
Aluminum
4.5-6.0 0.8 0.3 0.0008 0.05 0.05 0.10 0.20 0.05 0.15 Remainder

 

PHYSICAL and MECHANICAL PROPERTIES
Melting Range 1065-1170°F (574-632°C)
Density at 68°F 0.097 lbs./in³
Conductivity 42 %IACS (-O)
Resistance to Corrosion B (Gen) A (SCC)
Anodize Color Gray
 
SPECIFICATIONS MEET OR EXCEED
ANSI/AWS A5.10 (ER & R 4043)
AMS 4190

 

STANDARD SIZES AND DIAMETERS
Diameters (inches) Package Form
0.030, 0.035, 3/64, 1/16, 3/32, 1/8 4 & 12 in. Spools
1/16, 3/32, 1/8, 5/32, 3/16, 1/4 Straight lengths

 

TYPICAL MECHANICAL PROPERTIES OF GTAW GROOVE JOINT WELDS
  BASE ALLOY AS WELDED POST WELD HEAT TREAT AND AGE¹
BASE ALLOY UTS (KSI) UYS (KSI) ELONG (%) UTS (KSI) UYS (KSI) ELONG (%) UTS (KSI) UYS (KSI) ELONG (%)
2014-T6 70 60 13 34 28 4 50 - 2
6061-T4 35 21 22 27 18 8 35² - 8²
6061-T6 45 40 12 27 18 8 44 40 5
6063-T4 25 22 22 20 10 12 30 - 13

(1) Requires sufficient dilution of base metal into weld pool for heat treat and/or age response. Refer to alloy 4643 data sheet for additional information. (2) Postweld aged only.

 

TYPICAL GMAW PARAMETERS
Wire diameter Range Base material thickness Suggested Wire feed Gas flow Consumption
100 ft of weld
INCHES AMPS VOLTS INCHES AMPS VOLTS IPM CFH POUNDS
0.030 60-170 13-24 0.062 90 22 260 25 1.5
      0.094 110 23 320   1.8
      0.125 130 23 380   2
      0.187 150 24 430   4
      0.250 175 24 510   6
0.035 70-180 15-26 0.062 90 23 250 35 1.5
      0.125 130 24 360   2
      0.250 170 25 470   6
0.047 140-260 20-29 0.094 110 25 215 45 1.8
      0.125 150 26 290   2
      0.250 190 26 370   6
      0.375 220 27 430   16
0.062 190-350 25-30 0.250 200 26 190 55 6
      0.375 230 27 215   16
      0.500 260 28 240   30
      0.750 280 29 261   50
      1.000 300 30 280   105
0.094 280-400 26-31 0.500 280 28 170 65 30
      0.750 290 29 175   50
      >1.000 300 30 180   150+

NOTE: Parameters based on flat position, groove joint, backing strip, and 100% argon gas.

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    Aufhauser Corporation
    39 West Mall, Plainview, NY 11803 USA

  • Phone: +1-212-246-0205

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