# Aluminum 5083-H111

> The shipbuilding aluminum: highest-strength weldable 5xxx for marine and cryogenic structure.

- Category: Aluminum Alloys → wrought-5xxx
- HTML page: https://fabvector.com/materials/aluminum-5083 (Portuguese: https://fabvector.com/pt/materials/aluminum-5083)
- Price index: $$ (1–5, 6061-T6 = $)

## Mechanical properties (typical values, not certified minimums)

| Property | Value |
|---|---|
| Tensile strength | 290–320 MPa |
| Yield strength | ~145 MPa (H111) |
| Hardness | ~75 HB |
| Density | 2.66 g/cm³ |
| Machinability | ★★★☆☆ (3/5) |
| Corrosion resistance | ★★★★☆ (4/5) |

## When to choose it

The step up from 5052 when marine structure needs more strength: best seawater corrosion resistance of the common alloys, fully weldable, and it keeps toughness at cryogenic temperatures.

## When to look elsewhere

Not for sustained service above ~65 °C (risk of sensitization and stress corrosion) and not a substitute for 6061-T6 where machinability and crisp detail matter more than salt exposure.

## Typical applications

- Ship and workboat structural components
- ROV and subsea equipment frames
- Cryogenic and LNG vessel parts
- Offshore platform hardware

## Compatible surface finishes

- [As-Machined](https://fabvector.com/md/finishes/as-machined)
- [Anodizing Type II (Clear)](https://fabvector.com/md/finishes/anodizing-type-ii)
- [Anodizing Type II (Dyed)](https://fabvector.com/md/finishes/anodizing-type-ii-color)
- [Hardcoat Anodizing Type III](https://fabvector.com/md/finishes/hardcoat-anodizing-type-iii)
- [Chromate Conversion (Alodine / Chem Film)](https://fabvector.com/md/finishes/chromate-conversion)
- [Bead Blasting](https://fabvector.com/md/finishes/bead-blasting)
- [Brushed Finish](https://fabvector.com/md/finishes/brushed-finish)
- [Powder Coating](https://fabvector.com/md/finishes/powder-coating)
- [Wet Painting](https://fabvector.com/md/finishes/wet-painting)
- [Vibratory Tumbling](https://fabvector.com/md/finishes/vibratory-tumbling)
- [Laser Marking](https://fabvector.com/md/finishes/laser-marking)

Industries: marine, energy, oil-and-gas · Instant quote: https://fabvector.com/quote