5154 Aluminum

Representative aluminum material photo; exact grade not verified

5154 aluminum is an active registered wrought aluminum–magnesium alloy in the 5xxx series. The Aluminum Association cross-reference identifies 5154 with the former ISO designation AlMg3.5, indicating its magnesium-alloyed character. Like other non-heat-treatable Al–Mg wrought alloys, it develops strength principally through cold work rather than precipitation heat treatment. It is suited to fabricated sheet and plate work where weldability, corrosion resistance, moderate strength and low density are important. Final performance depends substantially on product form, thickness, temper, welding procedure and service environment.

Chemical Composition (wt.%)
Chemical Composition wt.%
Element	Min	Max
Magnesium	3.5	3.5

Composition notes

Magnesium: Nominal magnesium content indicated by the former ISO cross-reference designation AlMg3.5; this is not presented as a registered chemical-composition limit in the supplied excerpt.

The supplied Aluminum Association excerpt confirms 5154 as an active wrought designation and lists the former ISO cross-reference AlMg3.5, but it does not include the registered 5154 chemical-composition row. Therefore, no unverified registered elemental limits have been added. The value below is a nominal identifier from the cross-reference, not a registered composition limit.

The supplied Aluminum Association source provides a calculated nominal density for 5154. It does not provide tensile, yield, thermal-conductivity or electrical-conductivity values for this grade in the supplied excerpt. Mechanical properties of wrought 5154 depend on temper, product form and thickness.

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Table of 5154 Aluminum Properties

Table of 5154 Aluminum Properties
Physical Properties	Metric
Calculated Nominal Density	2.66 Mg/m³ × 10³
Calculated Nominal Density	0.096 lb/in³2.66 g/cm³

Test conditions & data notes

Calculated Nominal Density: Calculated nominal density for active wrought alloy 5154.
Calculated Nominal Density: Calculated nominal density for active wrought alloy 5154.

Material Conditions & Tempers

5154 is a non-heat-treatable wrought alloy. Its supplied condition is normally designated separately from the alloy number: annealed material uses an O temper, while H tempers identify strain-hardened conditions. Select a temper and applicable product standard based on required forming severity, strength, thickness and weld-joint requirements.

Condition	Description	Notes
O	Annealed condition, generally selected where maximum ductility and demanding forming are more important than cold-work strength.	No numerical O-temper mechanical properties were supplied for 5154.
H1x / H2x / H3x	Strain-hardened temper families used to obtain higher strength than annealed material; the final digit defines the degree of strain hardening or stabilization treatment.	Availability and certified properties depend on product form, thickness and the governing material specification.

Advantages & Limitations

Advantages	Limitations
Non-heat-treatable 5xxx-series alloy whose strength can be adjusted through strain-hardening temper selection. Magnesium-alloyed wrought aluminum provides a useful balance of moderate strength, formability and corrosion resistance for fabricated components. Low calculated nominal density, 2.66 Mg/m³, supports weight-conscious sheet, plate and formed-part designs. Generally well suited to conventional fusion welding practices used for aluminum fabrication when an appropriate qualified procedure and filler are selected. The AlMg3.5 former ISO cross-reference helps distinguish 5154 from lower- and higher-magnesium wrought aluminum grades.	It cannot be strengthened by a conventional solution heat-treatment and artificial-aging cycle; strength gains are primarily obtained by cold work. Mechanical properties cannot be specified from alloy number alone: temper, product form and thickness must be stated. Cold-worked tempers sacrifice some formability relative to O temper, so tight radii and deep forming require appropriate temper selection. As with other Al–Mg alloys, prolonged elevated-temperature service and fabrication heat input require application-specific evaluation. The supplied source excerpt does not establish registered composition limits or guaranteed mechanical-property values; procurement should cite a current product specification and mill certification.

Advantages

Limitations

Non-heat-treatable 5xxx-series alloy whose strength can be adjusted through strain-hardening temper selection.
Magnesium-alloyed wrought aluminum provides a useful balance of moderate strength, formability and corrosion resistance for fabricated components.
Low calculated nominal density, 2.66 Mg/m³, supports weight-conscious sheet, plate and formed-part designs.
Generally well suited to conventional fusion welding practices used for aluminum fabrication when an appropriate qualified procedure and filler are selected.
The AlMg3.5 former ISO cross-reference helps distinguish 5154 from lower- and higher-magnesium wrought aluminum grades.

It cannot be strengthened by a conventional solution heat-treatment and artificial-aging cycle; strength gains are primarily obtained by cold work.
Mechanical properties cannot be specified from alloy number alone: temper, product form and thickness must be stated.
Cold-worked tempers sacrifice some formability relative to O temper, so tight radii and deep forming require appropriate temper selection.
As with other Al–Mg alloys, prolonged elevated-temperature service and fabrication heat input require application-specific evaluation.
The supplied source excerpt does not establish registered composition limits or guaranteed mechanical-property values; procurement should cite a current product specification and mill certification.

Processing & Fabrication

Process	Description
Forming	Use O temper when extensive bending, drawing or shaping is required. Higher H tempers provide greater strength but require larger bend radii and more careful control of forming operations.
Welding	5154 is generally treated as a weldable Al–Mg wrought alloy. Use a qualified welding procedure, compatible filler selection, clean joint preparation and suitable heat-input control for the specific product and service environment.
Machining	Plan machining around the selected temper. Rigid workholding, sharp tooling and effective chip control help limit distortion and surface damage in relatively ductile aluminum-magnesium material.
Finishing and corrosion control	Remove fabrication residues and avoid galvanic contact with dissimilar metals in wet service. Surface preparation and any coating or anodizing system should be validated for the intended environment.

Applications

5154 is appropriate for fabricated aluminum components that benefit from the corrosion resistance and weldability associated with a moderate-magnesium 5xxx-series alloy. The final application decision should be based on certified temper-specific mechanical properties, required forming severity, joint design and the actual corrosive or thermal exposure.

Formed sheet-metal enclosures and panels: Its wrought Al–Mg character supports lightweight formed components where corrosion resistance and practical fabrication are needed.
Welded tanks, covers and fabricated structures: The alloy family is commonly selected where welded aluminum construction and resistance to ordinary corrosive exposure are important; joint qualification remains necessary.
Transportation and equipment body components: Low density can reduce component mass while strain-hardened tempers can provide a useful strength increase for selected formed parts.
Marine-adjacent and industrial fabricated parts: Al–Mg alloys are valued for corrosion-resistant fabricated work, provided service temperature, galvanic coupling and environment are assessed for the specific design.

Standards & Designations

Designation	Value	Description
Aluminum Association International Alloy Designation System	5154	Active registered wrought aluminum-alloy designation in the supplied December 2025 Teal Sheets source.
AA designation	AA 5154	Common designation format for the registered wrought alloy.
Former ISO cross-reference	AlMg3.5	Listed in the supplied Teal Sheets cross-reference table as the former ISO designation for 5154. The source notes that ISO 209-1 was withdrawn and replaced by ISO 209.
ISO	ISO 209	The supplied Teal Sheets notes that ISO 209 references the Teal Sheets as its normative reference for international alloy designations.

Frequently Asked Questions

Is 5154 aluminum heat treatable?

No. 5154 is a 5xxx-series Al–Mg wrought alloy and is normally strengthened by strain hardening, expressed through H temper designations, rather than by precipitation heat treatment and artificial aging.

What does AlMg3.5 mean for 5154?

The supplied Aluminum Association cross-reference lists AlMg3.5 as 5154's former ISO designation. It identifies the alloy as an aluminum-magnesium grade with nominally 3.5 magnesium in that naming convention; it is not a substitute for the registered composition limits.

What information should be specified when ordering 5154 material?

Specify 5154 together with product form, temper, dimensions or thickness, applicable product standard, required mechanical properties and any corrosion, welding, inspection or certification requirements. The alloy number by itself does not define a delivery condition.

References & Data Notes

(n.d.). The Aluminum Association, International Alloy Designations and Chemical Composition Limits for Wrought Aluminum and Wrought Aluminum Alloys (Teal Sheets), revised December 2025. https://www.aluminum.org/sites/default/files/2026-01/Teal%20Sheets%20December%202025.pdf

Composition limits and temper-specific mechanical properties were not visible in the supplied source excerpt and are intentionally not inferred. The source-supported numerical property shown is calculated nominal density; values on a purchase specification or material test report govern delivered material.