Aluminium ENAW-5754 Plates & Sheets (5754 - O, 5754 - H111)

Product Description

EN AW-5754 (AlMg3) is a premier non-heat-treatable aluminum-magnesium alloy. It is the "workhorse" of the marine and chemical industries because of its exceptional resistance to seawater and industrial chemicals.

When choosing between the O and H111 tempers, you are essentially looking at the material's degree of softness and its suitability for forming versus structural stability.

1. Comparing Tempers: 5754-O vs. 5754-H111

Because 5754 is not heat-treatable, its mechanical properties are achieved through cold working (strain hardening) or annealing.

2. Technical Specifications (EN 485-2)

3. Key Performance Advantages

🌊 Corrosion Resistance

5754 is highly resistant to pitting and stress corrosion cracking. It is the standard choice for marine engineering, offshore platforms, and coastal architecture where salt spray would degrade 2000 or 7000-series alloys.

🔠Weldability

It offers excellent weldability with almost all standard methods (MIG, TIG). It does not suffer from the "weld decay" seen in heat-treatable alloys, meaning the joint remains nearly as strong as the base metal.

ðŸ›ï Formability & Surface

• Bending: Excellent for cold forming.

• Anodizing: It produces a high-quality decorative finish.

• Machining: Fair to Good. It is "tougher" than pure aluminum but softer than 6082; it requires sharp tools and high speeds to prevent "gumming."

4. Typical Applications

• Marine: Ship hulls, decks, and fishing equipment.

• Automotive: Internal body panels, floor structures, and heat shields.

• Industrial: Pressure vessels, welded chemical tanks, and silos.

• Architecture: Treadplates (Chequer plate), signage, and decorative facades.

5. Design Checklist: 5754 vs. 5083

If you are deciding between 5754 and its "big brother" 5083:

• Choose 5754 for better formability and general corrosion resistance in moderately stressed environments.

• Choose 5083 if you need significantly higher strength for heavy structural marine hulls or cryogenic tanks.