JIS 5154 Plates, AFNOR 5154A Plate - BS 5154 Plates & Sheets

Product Description

5154 Aluminium (AlMg3.5) is a medium-strength alloy from the 5000 series, highly valued for its exceptional resistance to corrosion, particularly in saltwater environments. The designations you mentioned cover the Japanese, French, and British standards for this specific grade.

1. Key Designations and Equivalents

These standards all refer to an alloy with a nominal magnesium content of approximately 3.5%.

2. Mechanical Properties (Typical)

The properties of 5154 are determined by its temper. For plates and sheets, the most common states are O (annealed) and H (work-hardened).

3. Key Characteristics

• Corrosion Resistance: Excellent. It is one of the best choices for marine applications and chemical storage.

• Weldability: Excellent. It can be easily welded using MIG and TIG processes. It is often used as a filler wire (5154) for welding other 5000-series alloys.

• Formability: High. In the annealed (O) state, it is very easy to cold-work, bend, and spin.

• Machinability: Fair. Like most high-magnesium alloys, it can be somewhat "gummy" during cutting; using harder tempers (H34 or H38) improves chip breakability.

4. Common Applications

• Marine Industry: Hulls for small boats, masts, and marine hardware.

• Pressure Vessels: Unfired welded pressure vessels and gas cylinders.

• Transportation: Components for road tankers and railway cars.

• Chemical Processing: Storage tanks for chemicals and piping systems.

• Fasteners: High-strength rivets and wire mesh.

5. Form Availability

• Sheets: Thinner gauges (0.5mm to 6mm) used for cladding and light structural panels.

• Plates: Thicker sections (over 6mm) used for heavy fabrication and marine structures.

• Blocks: Often used for machining specific components where high corrosion resistance is more critical than the extreme strength of 7075 or 2014.

5154 vs. 5083

While 5154 is very capable, it is often compared to 5083:

• 5154 (AlMg3.5): Slightly lower strength but better ductility and easier to form.

• 5083 (AlMg4.5): Higher strength and the industry standard for large-scale shipbuilding, but slightly more difficult to cold-form.