OK Autrod 4047
OK Autrod 4047 was originally developed as a brazing alloy to take advantage of its low melting point and narrow freezing range. In addition, it has higher silicon content than OK Autrod 4043, which provides an increased fluidity and reduced shrinkage. The alloy produces bright and almost smut free welds. Hot cracking is significantly reduced when using OK Autrod 4047 as a filler alloy. The alloy may be used in applications of sustained elevated temperatures. Non-Heat treatable.
Typical Tensile Properties
| Condition | Elongation | Tensile Strength | Yield Strength |
| As Welded | 12 % | 124 MPa (18 ksi) | 55 MPa (8 ksi) |
Recommended Welding Parameters
| Current | Voltage | Wire Diameter | ||
| 140-260 A | 20-29 V | 1.2 mm (0.047 in.) | ||
| 180-210 A | 22-26 V | 1.2 mm (0.047 in.) | ||
| 125-150 A | 20-24 V | 1.2 mm (0.047 in.) | ||
| 170-240 A | 24-28 V | 1.2 mm (0.047 in.) | ||
| 190-350 A | 25-30 V | 1.6 mm (1/16 in.) | ||
| 240-300 A | 22-27 V | 1.6 mm (1/16 in.) | ||
| 190-260 A | 21-26 V | 1.6 mm (1/16 in.) | ||
| 290-340 A | 26-30 V | 1.6 mm (1/16 in.) | ||
| 260-310 A | 22-27 V | 1.6 mm (1/16 in.) | ||
| 280-320 A | 24-28 V | 1.6 mm (1/16 in.) | ||
| 60-170 A | 13-24 V | 0.8 mm (0.030 in.) | ||
| 100-130 A | 18-22 V | 0.8 mm (0.030 in.) | ||
| 125-150 A | 20-24 V | 0.8 mm (0.030 in.) | ||
| 90-210 A | 15-26 V | 1.0 mm (0.040 in.) | ||
| 60-170 A | 13-24 V | 0.9 mm (0.035 in.) | ||
| 125-150 A | 20-24 V | 0.9 mm (0.035 in.) | ||
| 85-120 A | 20-23 V | 0.9 mm (0.035 in.) | ||
| 170-190 A | 21-26 V | 0.9 mm (0.035 in.) | ||
Classifications
| Wire Electrode |
SFA/AWS A5.10 : ER4047 EN ISO 18273 : S Al 4047 (AlSi12) |
Approvals
| Grade | AWS A5.10 |
| Society | CWB |
| Approvals are based on factory location. Please contact ESAB for more information. |
Consumable Characteristics
| Alloy Type | AlSi |
| Shielding Gas | I1, I3 (EN ISO 14175) |
Typical Weld Metal Analysis %
| Typical Wire Composition % | ||||||||||||||
| Al | Cu | Fe | Mn | Si | Zn | |||||||||
| Rem % | 0.01 % | 0.18 % | 0.01 % | 11.5 % | 0.01 % | |||||||||
Part Numbers and Accessories
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