181512215A - ESAB OK Autrod 5356 Aluminum MIG Wire 0.045" (1 lb Spool)

Technical Overview of ESAB OK Autrod 5356

The ESAB OK Autrod 5356 is a premium quality aluminum-magnesium alloy (AlMg5) welding wire designed for Gas Metal Arc Welding (GMAW). As the most widely used general-purpose filler alloy in the industry, it is engineered to provide superior mechanical properties compared to 4XXX series alloys. The 5356 classification indicates a magnesium content of approximately 5%, which contributes significantly to the wire's high shear strength and excellent corrosion resistance. This makes it the preferred choice for welding 5XXX series base alloys, such as 5050, 5052, 5083, 5086, 5154, 5356, and 5456, particularly in environments exposed to saltwater or high humidity.

Metallurgically, OK Autrod 5356 offers a distinct advantage in post-weld finishing. Unlike silicon-based alloys that can turn dark gray after anodizing, this magnesium-based alloy maintains a color that closely matches the base metal, making it ideal for architectural applications where aesthetics are critical. However, it is important to note that while the alloy is robust, the presence of magnesium greater than 3% renders it susceptible to stress corrosion cracking if exposed to service temperatures exceeding 65°C (150°F) for prolonged periods. Therefore, it is not recommended for elevated temperature service applications.

The 0.045-inch (1.2mm) diameter provided in this 0.45 kg (1 lb) spool is precision-wound to ensure consistent feedability. Aluminum wire is notoriously difficult to feed due to its softness, but ESAB's manufacturing process ensures a smooth surface finish and consistent cast and helix, minimizing friction in the liner and reducing the risk of "bird-nesting" at the drive rolls. This wire is non-heat treatable and is typically used with 100% Argon shielding gas, though Argon/Helium mixtures may be employed for thicker sections to increase heat input.