Aluminium Alloy - Commercial Alloy - 5454

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Last Datasheet Revision

13 November 2018

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This Data is indicative only and as such is not to be relied upon in place of the full specification. In particular, mechanical property requirements vary widely with temper, product and product dimensions. All information is based on our present knowledge and is given in good faith. No liability will be accepted by the Company in respect of any action taken by any third party in reliance thereon.

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5454 - 'O' and H111 Sheet

Aluminium alloy 5454 has very good corrosion resistance, in particular to seawater and general environmental conditions. Strength is medium to high and similar alloy 5754 with good strength in the temperature range 65 to 170 degrees centigrade. It has a high fatigue strength. It is not suitable for complex or fine extrusions.

Applications 5454 is typically used in:
~ Road Transport Body-Building
~ Cemical and Process Plant
~ Pressure Vessels, Containers, Boilers
~ Cryogenics
~ Marine & Off-shore incl. Masts,
~ Pylons, poles & masts

Chemical Composition

Spec: BS EN 573-3:2009

Alloy 5454

Chemical Element	% Present
Manganese (Mn)	0.50 - 1.00
Iron (Fe)	0.0 - 0.40
Magnesium (Mg)	2.40 - 3.00
Silicon (Si)	0.0 - 0.25
Chromium (Cr)	0.05 - 0.20
Titanium (Ti)	0.0 - 0.20
Zinc (Zn)	0.0 - 0.25
Copper (Cu)	0.0 - 0.10
Other (Each)	0.0 - 0.05
Others (Total)	0.0 - 0.15
Aluminium (Al)	Balance

Properties

Physical Property	Value
Density	2.69 g/cm³
Melting Point	645 °C
Thermal Expansion	23.6 x10^-6 /K
Modulus of Elasticity	70.5 GPa
Thermal Conductivity	135 W/m.K
Electrical Resistivity	34 % IACS

Spec: BS EN 485-2:2008

Sheet - 0.2mm to 6.0mm

Mechanical Property	Value
Proof Stress	85 Min MPa
Tensile Strength	215 - 275 MPa
Hardness Brinell	58 HB

Alloy Designations

Alloy 5454 corresponds to the following standard designations and specifications but may not be a direct equivalent:

A5454

ISO Al Mg3MN

Al 2.7Mg 0.8Mn Cr

Temper Types

The most common tempers for 5454 aluminium are shown below

O - Soft
H111 - Some work hardening imparted by shaping processes but less than required for H11 temper
H22 - Work hardened by rolling then annealed to quarter hard
H32 - Work hardened by rolling then stabilised by low-temperature heat treatment to quarter hard

Supplied Forms

Alloy 5454 is supplied in most forms but is not suitable for fine or complex extrusions:

Plate
Sheet
Bar
Treadplate/Patterened Sheet
Tube
Wire

Weldability

Alloy 5454 has good weldability by some methods but Soldering and Brazing are not recommended.

Fabrication

Formability of Alloy 5454 is good in the softer tempers and it can be extruded.

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