ESAB 404315030 WIRE, .035″ ER4043 ALUMINUM 16LB

The ESAB 404315030 ER4043 Aluminum MIG Welding Wire is a .035″ (0.9mm) aluminum filler wire designed for welding and metallizing applications. Made from 4043 aluminum alloy, this wire features silicon as the primary alloying element, enhancing weld fluidity and reducing the risk of cracking. It is non-heat treatable, with a melting range of 1065 to 1170°F, making it a reliable choice for automotive, aerospace, marine, and general fabrication industries. The wire produces bright, smut-free welds, ensuring clean results with minimal oxidation, and it takes on a gray finish when anodized, making it ideal for structural and aesthetic aluminum applications.

This 16 lb spool is optimized for extended welding operations, reducing downtime from frequent spool changes. Meeting ANSI/AWS A5.10 and AMS 4190 standards, this wire guarantees high-quality, crack-resistant welds for aluminum fabrication, automotive repairs, marine construction, and aerospace applications. Additionally, it is commonly used in spray and flame metallizing, providing durable aluminum coatings for corrosion and wear protection.

Features:

• ER4043 Aluminum Alloy: Contains silicon for improved fluidity, reducing weld cracking.
• Non-Heat Treatable: Provides consistent performance without requiring post-weld heat treatment.
• Bright, Smut-Free Welds: Produces clean, aesthetic welds with minimal oxidation.
• Gray Anodized Finish: Develops a uniform gray tone when anodized, ideal for structural applications.
• Excellent Corrosion Resistance: Suitable for marine, aerospace, and outdoor applications.
• Versatile Applications: Ideal for welding, spray metallizing, and flame metallizing.
• 16 lb Spool: Provides extended welding time, reducing the need for frequent spool changes.

Markets:

• Metal Fabrication: Used in welding aluminum components for industrial and structural applications.
• Automotive Repair & Manufacturing: Ideal for aluminum body panels, structural repairs, and lightweight frames.
• Marine & Shipbuilding: Provides corrosion-resistant welds for boats, docks, and offshore structures.
• Aerospace Manufacturing: Essential for aircraft aluminum components requiring precision and durability.
• Trailer & Truck Manufacturing: Ensures strong, durable welds in aluminum truck bodies and trailers.
• General Welding Shops: A go-to wire for welders working on various aluminum fabrication projects.
• Spray & Flame Metallizing: Used for coating applications, improving wear resistance and corrosion protection.

Specifications:

• Material: Aluminum (4043 alloy)
• Wire Diameter: .035″ (0.9mm)
• Weight: 16 lbs (7.26 kg)
• AWS Classification: ER4043
• Melting Range: 1065 – 1170°F (575 – 632°C)
• Density: 0.097 lb/cu.in
• ISO Designation: AlSi5
• Standards: ANSI/AWS A5.10, AMS 4190

The ESAB ER4043 aluminum MIG welding wire is a trusted option for professionals requiring smooth, crack-resistant filler metal for aluminum fabrication, repairs, and coating applications. Whether used for MIG welding, flame spraying, or metallizing, this wire delivers high-quality, corrosion-resistant results for marine, aerospace, automotive, and industrial applications. Its consistent welding characteristics and clean finish make it an essential choice for any aluminum welding project.