Aluminium GOST AMg3, CSN 424413 Plates, Sheets (AlMg3 Plate)

Product Description

Aluminium AlMg3 is a medium-strength, non-heat-treatable alloy known for its excellent atmospheric corrosion resistance and high weldability. The designations GOST AMg3 and CSN 424413 are the Russian and Czech equivalents of the European EN AW-5754 or 5454 series, depending on the exact magnesium balance.

1. Key Designations and Equivalents

2. Chemical Composition (Typical %)

The alloy is defined by its 3% Magnesium content, which provides a balance of strength and excellent workability.

• Magnesium (Mg): 2.60 “ 3.60%

• Manganese (Mn): 0.50% max

• Chromium (Cr): 0.30% max

• Iron (Fe): 0.40% max

• Aluminium (Al): Remainder

3. Mechanical Properties

Properties are highly dependent on the temper. For plates and sheets, the most common are O (annealed) and H111 (slightly work-hardened).

4. Key Engineering Characteristics

• Corrosion Resistance: Excellent. It is particularly resistant to seawater and industrial polluted atmospheres.

• Weldability: Very High. It can be welded easily using MIG or TIG methods. It is often used in welded structures where strength is not the only priority.

• Surface Finish: Highly suitable for anodizing, making it popular for architectural and decorative applications.

• Formability: Excellent cold-working properties. It can be easily bent, drawn, or spun into complex shapes in the "O" temper.

5. Common Applications

• Marine & Shipbuilding: Components for fishing boats, internal ship structures, and marine hardware.

• Food & Chemical Industry: Storage tanks and processing equipment where hygiene and corrosion resistance are vital.

• Automotive: Body panels, floor plates, and internal structural components.

• Architecture: Cladding, facades, and signage (due to its excellent anodizing quality).

• General Engineering: Tread plates (checker plates) and welded pressure vessels.

6. Comparison: AlMg3 (5754) vs. AlMg4.5 (5083)