Aluminum 4047
Nominal Chemical
Composition
INTRODUCTION
Aufhauser Aluminum 4047 was originally developed as a brazing alloy (BAlSi-4 or 718) to take advantage of its low melting point and narrow freezing range. In addition, it has a higher silicon content than AL4043, which provides for increased fluidity and reduced shrinkage. The alloy produces bright and almost smut free welds. Hot cracking is significantly reduced when AL4047 is used as a filler alloy. The alloy may be used in applications of sustained elevated temperatures.
APPLICATIONS
- Welding filler wire
GENERAL INFORMATION
- Non-Heat treatable
- Principle alloying element: Silicon
- ISO designation: AlSi5
Chemical Composition
| Silicon | Iron | Copper | Beryllium | Manganese | Magnesium | Zinc | Each | Total Others |
Aluminum |
|---|---|---|---|---|---|---|---|---|---|
| 11.0-13.0 | 0.8 | 0.30 | 0.0008 | 0.15 | 0.10 | 0.20 | 0.05 | 0.15 | Remainder |
PHYSICAL and MECHANICAL PROPERTIES
| Melting Range | 1070-1080°F (577-582°C) |
| Density at 68°F | 0.096 lbs./in³ |
| Conductivity: | 41% IACS(-O) |
| Resistance to Corrosion | B (Gen) A (SCC) |
| Anodize Color | Gray-Black |
SPECIFICATIONS MEET OR EXCEED
| ANSI/AWS A5.10 (ER & R 4047) |
| AMS 4185 |
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) Post weld 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.