181509215A - ESAB OK Autrod 5356 Aluminum MIG Wire 0.035 1lb Spool

Technical Overview of ESAB OK Autrod 5356

The ESAB OK Autrod 5356 is a premium quality aluminum-magnesium alloy welding wire classified under AWS A5.10 as ER5356. This filler metal is the most widely utilized aluminum welding alloy due to its versatile mechanical properties and compatibility with a broad range of base materials. It contains approximately 5% Magnesium (AlMg5), which contributes significantly to its high tensile and shear strength relative to other common aluminum fillers like 4043. The 0.035-inch (0.9mm) diameter provided in this 0.45 kg (1 lb) spool is precision-manufactured to ensure consistent diameter control and surface cleanliness, minimizing feedability issues and porosity.

From a metallurgical perspective, OK Autrod 5356 is non-heat treatable. It is engineered for welding 5XXX series base alloys (such as 5050, 5052, 5083, 5356, 5454, and 5456) where high strength is a priority. The weld deposit exhibits excellent corrosion resistance, particularly against seawater, making it the standard choice for marine fabrication. However, it is important to note that 5XXX alloys with weld pool chemistry exceeding 3% Magnesium can be susceptible to stress corrosion cracking if subjected to service temperatures above 65°C (150°F). Therefore, application environments must be considered during selection.

This wire also offers good anodizing characteristics. Unlike 4043, which turns dark gray after anodizing, 5356 maintains a color that closely matches the base metal, providing a superior aesthetic finish for architectural applications. The wire is designed for use with Direct Current Electrode Positive (DCEP) polarity and requires inert shielding gas, typically 100% Argon or Argon/Helium mixtures for thicker sections.