5086 Aluminum Sheet and Plate

5083 offers ≈15% higher strength for extreme marine environments, while 5086 provides better cost efficiency for moderately stressed components. Both pass 240-hour salt spray tests.

5086 is preferred for critical marine structures due to superior corrosion resistance, while 5052 is more economical for architectural parts.

Yes, but with limitations:

• O temper: Bend radius ≥1× thickness
• H116 temper: Bend radius ≥2–3× thickness to avoid cracking
• Higher magnesium content increases brittleness, limiting sharp bends
• Preheating (250°C) is recommended for thick sections

Yes, but with precautions:

• Use ER5356 filler rod to minimize galvanic corrosion
• Weld strength drops to 80–85% of base metal due to HAZ softening in 6061
• Avoid for immersed marine components; isolate welds with coatings
• Prefer matching alloys for critical joints

Yes, 5086 has excellent weldability:

• Preferred methods: TIG/MIG with ER5356 or ER5183 filler
• Welded joints retain >90% of base metal strength
• No preheating needed for thicknesses <10 mm
• Widely used in shipbuilding for decks and bulkheads

Key applications:

• Marine: Ship decks, cabin structures, railings (H116 temper)
• Transport: Aircraft flooring, truck trailers
• Industrial: Pressure vessels, TV towers, missile components
• Infrastructure: Offshore platforms, drilling rigs

Yes, in O temper with radius ≥1× thickness. For H116 temper, use ≥2× thickness and limit bend angle to 45°. Preheating (250°C) improves formability for thick plates (>6 mm).

Defined by:

• Composition: 3.5–4.5% Mg, 0.2–0.7% Mn
• Tempers: H116 (resists exfoliation corrosion)
• Certifications: ASTM B928, DNV-GL, ABS
• Density: 2.66 g/cm³

Used in ship decks and offshore structures due to saltwater resistance.