The ESAB 404320047 ER4043 Aluminum MIG Welding Wire is a high-quality aluminum filler metal designed for smooth feeding and superior weld performance. Manufactured with precision, this 3/64″ (1.2mm) diameter wire is ideal for welding aluminum alloys where good corrosion resistance and excellent fluidity are essential. With a tensile strength of 124 MPa and an elongation of 18%, this wire provides durable, strong welds with minimal cracking. The 20 lb (9.07 kg) spool ensures an extended welding operation with fewer interruptions, making it a reliable choice for professionals in fabrication, automotive repair, aerospace, and other aluminum welding applications.
This welding wire is widely used for welding aluminum alloys such as 6XXX series, offering excellent crack resistance and ease of use, even for less experienced welders. It is commonly chosen for applications that demand high-strength welds with good corrosion resistance, making it ideal for marine fabrication, transportation, and structural aluminum work. Whether used in MIG welding processes for general fabrication or specialized aluminum repair jobs, this wire ensures smooth feedability, minimal spatter, and consistent weld quality.
Features:
- High-Quality Aluminum Wire: Manufactured with strict quality control for consistent performance and smooth welding.
- ER4043 Classification: Designed for welding aluminum alloys with high silicon content, reducing hot cracking and improving flow.
- Smooth Wire Feeding: Precision wire drawing ensures smooth feeding through MIG welding systems with minimal issues.
- Excellent Corrosion Resistance: Ideal for marine, automotive, and structural aluminum applications exposed to harsh conditions.
- Strong, Reliable Welds: Offers a tensile strength of 124 MPa and an 18% elongation for durable, long-lasting welds.
- 20 lb Spool: Provides extended welding time, reducing downtime for spool changes.
Markets:
- Metal Fabrication: Commonly used in general aluminum fabrication, ensuring strong, reliable welds with minimal defects.
- Automotive Repair: Essential for welding aluminum body panels and structural components in vehicles.
- Marine & Shipbuilding: Provides corrosion-resistant welds, making it ideal for aluminum boats, docks, and offshore structures.
- Aerospace Manufacturing: Used in aircraft component welding, requiring precision and strength in lightweight materials.
- Structural Aluminum Work: Suitable for bridges, railings, and other aluminum structural applications requiring durability.
- Trailer & Truck Manufacturing: Ensures secure, long-lasting welds in aluminum truck bodies and trailers.
- General Welding Shops: A go-to wire for welding professionals handling various aluminum projects.
Specifications:
- Material: Aluminum
- AWS Classification: ER4043
- Wire Diameter: 3/64″ (1.2mm)
- Weight: 20 lbs (9.07 kg)
- Tensile Strength (As Welded): 124 MPa
- Yield Strength (As Welded): 55 MPa
- Elongation (As Welded): 18%
- Standards: SFA/AWS A5.10 ER4043, EN ISO 18273 S Al 4043 (AlSi5), CE EN 13479, CWB AWS A5.10/A5.10M ER4043
The ESAB ER4043 aluminum MIG welding wire is trusted by professionals for its reliable performance, smooth arc characteristics, and excellent corrosion resistance. Whether you’re working on automotive repairs, marine structures, or aerospace applications, this wire delivers high-quality, crack-resistant welds with minimal effort. Its smooth feedability makes it a great choice for both manual and automated welding processes, ensuring efficient operation in fabrication shops, repair centers, and manufacturing plants.
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