5083-H321 Shipbuilding Aluminum Plate
The 5083 H321 aluminum plate is a high-strength, corrosion-resistant alloy widely used in marine applications. This alloy is known for its exceptional performance in extreme environments, making it an ideal choice for various marine structures and vessels.
5083-h321 Aluminum Plate Sizes
| Dimension | Common Sizes |
|---|---|
| Thickness | 3mm, 5mm, 6mm, 8mm, 10mm, 12mm, 15mm, 20mm |
| Width | 1000mm, 1200mm, 1500mm, 2000mm, 2500mm |
| Length | 2000mm, 2500mm, 3000mm, 4000mm, 5000mm, 6000mm, 10000mm, 12000mm |
5083 Main Chemical Composition
5083 aluminum alloy is an Al-Mg alloy with the following nominal composition:
| Element | Content |
|---|---|
| Aluminum (Al) | 93.7–95.3% |
| Magnesium (Mg) | 4.0–4.9% |
| Manganese (Mn) | 0.4–1.0% |
| Chromium (Cr) | 0.05–0.25% |
5083 Aluminum Plate Properties
| Property | Performance |
|---|---|
| Tensile strength | High — suitable for structural load-bearing use |
| Corrosion resistance | Excellent in seawater and industrial chemical environments |
| Weldability | Compatible with MIG, TIG, and friction stir welding |
| Formability | Good — supports bending and complex fabrication |
5083 H321 Temper
H321 = strain-hardened + stabilized.
Strain hardening increases mechanical strength through cold working
Stabilization improves resistance to stress corrosion cracking (SCC)
Result: enhanced long-term stability in sustained-load marine environments.
5083 h321 Plate Marine Applications
| Application | Why 5083-H321 |
|---|---|
| Hull construction | High strength + seawater corrosion resistance |
| Deck structures | Lightweight with structural rigidity |
| Superstructures (bridges, cabins) | Weldable, formable into complex geometry |
| Storage tanks (water, fuel) | Corrosion-resistant interior surfaces |
| Offshore platforms | Durable under continuous salt spray exposure |
| Marine hardware & fittings | Corrosion-resistant in high-contact, load-bearing roles |
