Alucon ER5356 Aluminum TIG Welding Rod

Our ER5356 aluminum TIG welding rod is a high-magnesium aluminum filler designed for strong, durable welds in automotive structural and cosmetic applications. Known for its excellent tensile strength and clean weld appearance, ER5356 is a go-to choice for fabricators working with 5xxx and 6xxx series aluminum where strength and finish matter most.

This filler offers superior as-welded strength compared to silicon-based fillers, making it ideal for brackets, frames, mounts, and components that see mechanical load but remain at low operating temperatures <150° F.

Key Features

• High-strength Al-Mg alloy (~5% Mg) for robust welds

• Excellent crack resistance on 5xxx series aluminum

• Bright, uniform anodized finish (preferred over silicon fillers)

• Smooth arc characteristics and consistent rod feed

• Machines cleaner than silicon-based fillers after welding

Common Automotive Applications

✔ Chassis components
✔ Brackets and mounts
✔ Aluminum frames and structures
✔ Cosmetic or anodized aluminum parts
✔ General-purpose aluminum fabrication

Important Application Note

ER5356 is not recommended for continuous high-temperature service >150° F. For components exposed to sustained heat—such as coolant tanks, intercooler tanks, heat exchangers, or exhaust-adjacent parts—we recommend silicon-based fillers like ER4043 or ER4943 for improved thermal stability.