5356 Tig Filler Wire
R200,00 R950,00Price range: R200,00R200,00 through R950,00R950,00
ER5356 TIG Filler Wire — High-Strength Aluminum/Magnesium Alloy
ER5356 is a filler metal used for TIG welding that’s part of the 5xxx aluminum/magnesium family. This alloy is chosen when welds need higher strength, good corrosion resistance (especially in marine or salty environments), and good performance after anodizing.
Key Features
Magnesium Content (~5%) — Provides higher strength compared to filler wires with more silicon (e.g. ER4043), as well as enhanced resistance to saltwater corrosion.
Good Corrosion Resistance — Especially in contact with seawater or moist, salty air; retains integrity in harsh environments.
High Strength — Welded joints with ER5356 typically have tensile strengths around 38,000 psi.
Post-Anodizing Color — Produces a mostly light, whitish color when anodized, matching well with many aluminum alloys.
All-Position Usability — Can be used in flat, horizontal, vertical, and overhead welds (depending on technique).
Compatibility — Works well on 5xxx series aluminum base metals, e.g. 5050, 5052, 5083, 5356, 5454, 5456. Also commonly used when welding aluminum alloy 6061 (but note that filler selection depends on demands and whether strength or weldability is more critical).
Typical Composition & Mechanical Data (Approximate)
| Element | Typical Range |
|---|---|
| Magnesium (Mg) | ~ 4.5 – 5.5% |
| Silicon (Si) | ≤ ~0.25% |
| Iron (Fe) | ≤ ~0.40% |
| Manganese, Chromium, Titanium | Small amounts for weldability/stability |
| Aluminum (Al) | Balance |
Yield strength: moderate; tensile strength: ~38,000 psi (≈ 260-270 MPa)
Elongation (ductility): adequate for many structural and marine-exposed applications
Typical Applications
Marine fabrication: boat hulls, pontoons, marine fittings.
Vehicle parts, trailers, frames where exposure to moisture or salt is likely.
Welding panels or components that will undergo anodizing.
Structural or decorative aluminum work where greater strength than softer alloys is needed.
Repairs or overlays on aluminum components that need durability and corrosion resistance.
Weld Parameters & Best Practices
Use 100% argon shielding gas for best TIG results.
Clean base metal well: remove oxide, grease, paint, dirt for best results.
Match filler diameter to material thickness; thinner work uses smaller diameter rod to avoid burn-through.
Watch heat input: ER5356 is more prone than some filler wires to hot cracking in certain alloys (especially with high restraint), so manage travel speed, preheat (if needed), and interpass temperatures.
After welding, if anodizing is required, test color result since slight discoloration or tint can occur depending on alloy and finishing.