ESAB 404301035, ALCOTEC, WIRE, MIG, ALUMINUM, ALMIGWELD 4043, AWS A5.10/ASME SFA 5.10: ER4043, CSA W48: ER4043, 0.9 MM (0.035) 0.45 KG (1 LB) SPOOL

The ESAB 404301035 AlcoTec Almigweld 4043 Aluminum MIG Welding Wire is a 0.035″ (0.9mm) solid aluminum wire designed for MIG welding (GMAW) applications. Manufactured from 4043 aluminum alloy, this wire features silicon as the primary alloying element, improving weld fluidity and reducing hot cracking. It provides excellent corrosion resistance, making it a preferred choice for automotive, marine, aerospace, and general aluminum fabrication. With a tensile strength of 34 ksi and an elongation of 12%, it ensures strong, ductile welds.

This 1 lb plastic spool is ideal for small-scale projects, touch-ups, and portable welding applications. Compatible with 100% argon shielding gas, it supports flat, horizontal, vertical-up, and overhead welding positions. Meeting AWS A5.10, ASME SFA 5.10, and CSA W48 standards, this wire guarantees high-quality, industry-compliant welds for aluminum fabrication, repair work, and spray metallizing applications.

Features:

• ER4043 Aluminum Alloy: Contains silicon for improved weldability, reducing hot cracking and ensuring smooth weld puddles.
• Compatible with 100% Argon Shielding Gas: Provides stable arc performance and clean weld deposits.
• Strong, Ductile Welds: Offers a tensile strength of 34 ksi and yield strength of 28 ksi for durable aluminum joints.
• Versatile Welding Positions: Supports flat, horizontal, overhead, and vertical-up applications.
• Bright, Smut-Free Welds: Produces clean, aesthetically pleasing welds with minimal oxidation.
• 1 lb Plastic Spool: Perfect for small jobs, touch-ups, and portable welding setups.

Markets:

• Automotive Repair & Manufacturing: Ideal for welding aluminum body panels, engine components, and structural repairs.
• Marine & Shipbuilding: Provides corrosion-resistant welds for boats, docks, and offshore structures.
• Aerospace Manufacturing: Used in aircraft component welding, requiring precision and high strength.
• General Metal Fabrication: Commonly used in welding aluminum frames, enclosures, and industrial structures.
• Trailer & Truck Manufacturing: Ensures strong, reliable welds in aluminum truck bodies and trailers.
• Welding Repair Shops: A go-to wire for quick aluminum repairs and small-scale fabrication projects.
• Custom Fabrication & Prototyping: Suitable for low-volume, precision aluminum welding applications.

Specifications:

• Material: Aluminum (4043 alloy)
• Wire Diameter: 0.035″ (0.9mm)
• Weight: 1 lb (0.45 kg)
• AWS Classification: ER4043
• Tensile Strength (As Welded): 34 ksi
• Tensile Strength (Minimum Required): 29 ksi
• Yield Strength (As Welded): 28 ksi
• Yield Strength (Minimum Required): 10 ksi
• Elongation (As Welded): 12%
• Elongation (Minimum Required): 8%
• Welding Process: MIG (GMAW)
• Current Type: DCEP (Direct Current Electrode Positive)
• Shielding Gas: 100% Argon
• Welding Positions: Flat, Horizontal, Overhead, Vertical-Up
• Spool Type: Plastic
• Spool Weight: 1 lb
• Spool Diameter: 4 in
• Spool Width: 3 in
• Arbor Hole Diameter: 5/8 in
• Wire Type: Solid
• Number of Passes: Single Pass, Multiple Passes
• Standards: AWS A5.10, ASME SFA 5.10, CSA W48

The ESAB ER4043 aluminum MIG welding wire is a trusted choice for welders who need fluid, crack-resistant aluminum welds. Whether you’re working on automotive repairs, marine fabrication, aerospace components, or general aluminum welding, this wire provides excellent feedability, smooth arc characteristics, and reliable performance. Its 1 lb spool makes it perfect for quick repairs, precision welding, and portable welding applications, ensuring high-quality results every time.