Aluminium ENAW-5454 Plates & Sheets (5454 - O, 5454 - H111)

Product Description

EN AW-5454 (AlMg3Mn) is a high-integrity, non-heat-treatable alloy specifically designed for structural applications where both high-temperature stability and corrosion resistance are required.

While it belongs to the 5000-series (Aluminium-Magnesium), it is uniquely "stabilized." Most 5000-series alloys with higher magnesium content (like 5083) can become brittle and prone to stress corrosion when exposed to temperatures above $65\circ\text{C}$. 5454 is the solution to this problem, remaining stable up to $170\circ\text{C}$.

1. Comparing Tempers: 5454-O vs. 5454-H111

In the European market, these two tempers are the most common for sheets and plates.

2. Technical Specifications (EN 485-2)

3. Key Performance Advantages

ðŸŒï Thermal Stability

The primary reason to specify 5454 over 5754 or 5083 is its performance at elevated temperatures. It maintains its mechanical properties and resists intergranular corrosion even when subjected to continuous heat.

ðŸ›ï Chemical & Marine Resistance

Like most magnesium-alloyed aluminum, it is exceptionally resistant to seawater. However, it also performs well in acidic environments, making it a favorite for the chemical processing industry.

ðŸ›ï Excellent Weldability

5454 is highly weldable using MIG and TIG processes. Because it is not heat-treated, the heat-affected zone (HAZ) around the weld does not suffer the massive strength loss seen in 6000 or 7000-series alloys.

4. Typical Applications

• Road Tankers: The industry standard for bulk powder and liquid tankers (especially those carrying hot substances like bitumen or chemicals).

• Pressure Vessels: Used for storage tanks operating at moderately elevated temperatures.

• Marine: Structural components for ships and offshore rigs where welding is extensive.

• Automotive: Wheels, heat shields, and structural frames.

5. Design Summary

• Choose 5454 if your part will be welded and exposed to temperatures between $65\circ\text{C}$ and $170\circ\text{C}$.

• Choose 5754 if you need general corrosion resistance at ambient temperatures and want to save on material costs.

• Choose 5083 if you need maximum strength for marine hulls and won't be operating in high-heat environments.