535631636C - Nexalloy ER5356 Aluminum TIG Welding Rod 3/16" - 10lb Tube

Nexalloy 5356 Aluminum TIG Rods – Heavy-Duty Marine Grade Filler

The Nexalloy 5356 TIG Welding Rod (Internal SKU: NEX535631636) is a premium aluminum-magnesium filler metal designed for high-strength structural and marine applications. Supplied in a 10-pound tube, these 3/16-inch diameter rods are engineered for welding 5000-series aluminum base metals, specifically those with magnesium content exceeding 3%. This alloy is widely recognized in the industrial sector as the "marine grade" filler due to its exceptional resistance to corrosion, particularly in saltwater environments.

Unlike the softer 4043 alloy, the 5356 classification offers higher shear strength and superior ductility. It contains approximately 5% magnesium, along with trace amounts of manganese, titanium, and chromium. This specific chemical composition refines the grain structure of the weld deposit, reducing the risk of hot cracking while ensuring the weld bead matches the mechanical properties of the base material. For fabricators working on heavy-duty projects such as truck frames, ship hulls, or large storage tanks, the 3/16-inch diameter provides the necessary deposition rate to fill joints efficiently in thicker plate sections.

One of the standout features of Nexalloy 5356 is its post-weld finishing capability. When the finished assembly requires anodizing, this filler metal provides a much closer color match to the base metal compared to 4043, which often turns dark gray or black. This makes it the preferred choice for architectural applications where aesthetics are critical. Additionally, the rod feeds smoothly and produces a stable arc under AC TIG welding conditions, allowing operators to maintain precise control over the puddle.

Key Industrial Benefits:

• High Tensile Strength: Typically double that of 4043, making it ideal for structural components.


• Corrosion Resistance: The addition of chromium and titanium enhances longevity in harsh marine atmospheres.


• Anodizing Quality: Maintains a bright, metallic silver color after the anodizing process.


• Feedability: The stiffer column strength of the 5356 alloy makes it easier to feed by hand without bending, especially in the 3/16" diameter.

Josef Gas provides this product in robust 10lb packaging to ensure shop inventory is maintained for substantial production runs. Whether repairing cast magnesium-aluminum parts or fabricating new pressure vessels, the Nexalloy 5356 ensures code-compliant, durable welds.