3005 Aluminum

Representative aluminum raw/semi-finished material photo; exact grade not verified

3005 Aluminum (AA 3005, UNS A93005) is a wrought, non-heat-treatable aluminum–manganese alloy strengthened further by magnesium. Its 1.0–1.5% manganese and 0.20–0.60% magnesium content give it higher strength than 3003 while retaining the corrosion resistance, weldability, and formability associated with the 3xxx series. Strength is developed principally by cold work, so mechanical requirements must always specify temper and product form. 3005 is commonly considered for sheet, strip, and coil components that need moderate strength together with practical forming and joining behavior.

Chemical Composition (wt.%)
Chemical Composition wt.%
Element	Min	Max
Silicon	—	0.60
Iron	—	0.70
Copper	—	0.30
Manganese	1.0	1.5
Magnesium	0.20	0.60
Chromium	—	0.10
Nickel	—	0.25
Zinc	—	0.10
Titanium	—	0.10
Other elements, each	—	0.05
Other elements, total	—	0.15
Aluminum	Remainder

Composition notes

Silicon: Maximum
Iron: Maximum
Copper: Maximum
Chromium: Maximum
Nickel: Maximum
Zinc: Maximum
Titanium: Maximum
Other elements, each: Maximum, each
Other elements, total: Maximum, total

Registered chemical-composition limits for wrought alloy 3005 are shown in mass percent. Aluminum is the remainder. “Other, each” and “Other, total” apply to elements not otherwise specified in the registered composition.

The Aluminum Association lists a calculated nominal density for alloy 3005. The remaining numerical values below are reported by AZoM for 3005-T14; they should not be used as general design minima for every 3005 temper, thickness, or product form.

Use the button to switch between Metric and US Customary units.

Table of 3005 Aluminum Properties

Table of 3005 Aluminum Properties
Physical Properties	Metric
Density	2.73 g/cm³2.73 g/cm³
Density	0.098 lb/in³2.71 g/cm³
Mechanical Properties	Metric
Tensile Strength (T14)	180 MPa
Yield Strength (T14)	165 MPa
Elongation (T14)	7 %
Elastic Modulus (T14)	69 GPa
Shear Strength (T14)	110 MPa
Brinell Hardness (T14)	49 HB
Thermal Properties	Metric
Melting Point	630–655 °C
Coefficient of Thermal Expansion (T14) (20–100 °C)	23.9 µm/m·°C
Thermal Conductivity (T14)	160 W/m·K

Test conditions & data notes

Density: Calculated nominal density for active wrought alloy 3005
Density: Calculated nominal density for active wrought alloy 3005
Brinell Hardness (T14): 500 kg load; 10.0 mm thickness

Material Conditions & Tempers

3005 does not gain useful strength from precipitation heat treatment. It is normally supplied in annealed or strain-hardened H tempers; the selected temper establishes the balance between forming reserve and strength. Confirm the applicable product standard, thickness range, and temper when specifying mechanical properties.

Condition	Tensile Strength	Yield / Proof Strength	Notes
O	—	—	Annealed condition with the greatest ductility and the lowest strain-hardened strength; suited to demanding forming operations. Property requirements depend on the governing product specification and thickness.
H1x / H2x	—	—	Strain-hardened tempers used to increase strength for sheet and strip. H2x denotes strain hardening followed by partial annealing. The final digit identifies the degree of strain hardening.
T14	180 MPa	165 MPa	A reported 3005-T14 condition with moderate cold-work strengthening. AZoM reports 7% elongation for this condition; values are not universal 3005 requirements.

Advantages & Limitations

Advantages	Limitations
Higher strength potential than 3003 from the combined manganese and magnesium additions, while remaining a non-heat-treatable wrought alloy. Good atmospheric corrosion resistance for general fabricated sheet and coil service. Readily strengthened by cold rolling, allowing a useful range of temper-dependent strength and formability. Generally favorable welding behavior for conventional aluminum fabrication methods. Low nominal density of 2.73 g/cm³ supports lightweight formed assemblies.	Strength is temper-dependent and cannot be restored or substantially increased by solution heat treatment and artificial aging as with heat-treatable alloys. Harder H tempers have less elongation and can crack in severe bends or deep draws unless bend radius and forming direction are controlled. It is not intended as a high-strength structural substitute for 5xxx, 6xxx, or 7xxx alloys. Thermal conductivity is useful but lower than that of high-purity aluminum; it is not normally selected as a premium electrical-conductor alloy. Service suitability in aggressive chemical or marine environments should be verified for the actual exposure, joints, coatings, and temper.

Advantages

Limitations

Higher strength potential than 3003 from the combined manganese and magnesium additions, while remaining a non-heat-treatable wrought alloy.
Good atmospheric corrosion resistance for general fabricated sheet and coil service.
Readily strengthened by cold rolling, allowing a useful range of temper-dependent strength and formability.
Generally favorable welding behavior for conventional aluminum fabrication methods.
Low nominal density of 2.73 g/cm³ supports lightweight formed assemblies.

Strength is temper-dependent and cannot be restored or substantially increased by solution heat treatment and artificial aging as with heat-treatable alloys.
Harder H tempers have less elongation and can crack in severe bends or deep draws unless bend radius and forming direction are controlled.
It is not intended as a high-strength structural substitute for 5xxx, 6xxx, or 7xxx alloys.
Thermal conductivity is useful but lower than that of high-purity aluminum; it is not normally selected as a premium electrical-conductor alloy.
Service suitability in aggressive chemical or marine environments should be verified for the actual exposure, joints, coatings, and temper.

Processing & Fabrication

Process	Description
Cold forming	Use O or a lower-strength strain-hardened temper where deep drawing, tight bends, or substantial stretch forming is required. Select higher H tempers when stiffness and strength take priority, while allowing a larger bend radius and checking bend orientation.
Welding	3005 is generally readily weldable by common aluminum welding processes. Clean oxide and contaminants before welding, use an application-appropriate filler procedure, and recognize that welding locally removes cold-work strengthening in the heat-affected zone.
Machining	This relatively ductile wrought alloy can form long chips or develop built-up edge. Sharp tools, suitable lubrication, positive cutting geometry, and secure workholding help improve finish and chip control.
Finishing and coating	The alloy is suitable for painted and coated sheet applications when surface preparation is matched to the coating system. Forming should normally be completed before applying coatings that may be damaged by deformation.

Applications

3005 is useful where formed aluminum sheet or coil needs more strength than a basic 3003-type choice while preserving corrosion resistance and straightforward fabrication. Final selection should consider the required temper, thickness, forming severity, coating system, and applicable product specification.

Architectural and building sheet: Moderate strength, low weight, corrosion resistance, and compatibility with painted or coated sheet systems suit trim, panels, flashings, and similar fabricated components.
Appliance and equipment panels: The alloy can provide an economical combination of formability, surface finish potential, and temper-controlled stiffness for enclosures and panels.
General-purpose formed sheet parts: Its cold-work strengthening response allows designers to select a condition balancing press-forming needs with finished-part rigidity.
Storage and handling components: Corrosion resistance and weldability support non-critical fabricated containers, covers, guards, and related light-gauge assemblies.

Standards & Designations

Designation	Value	Description
Aluminum Association International Alloy Designation System	3005	Active registered wrought aluminum-alloy designation; registered composition limits are published in the Aluminum Association Teal Sheets.
UNS	A93005	Common Unified Numbering System designation associated with aluminum alloy 3005.
ISO cross-reference	AlMn1Mg0.5	Listed in the Aluminum Association Teal Sheets cross-reference of international designations.

Frequently Asked Questions

Is 3005 aluminum heat treatable?

No. 3005 is a non-heat-treatable wrought alloy. Its useful strength changes are obtained primarily by cold work and the selected temper rather than by precipitation-hardening heat treatment.

How does 3005 differ from 3003 aluminum?

Both are 3xxx wrought alloys with 1.0–1.5% manganese, but 3005 also contains 0.20–0.60% magnesium. That magnesium addition is used to provide a higher-strength option while retaining the series' general corrosion resistance and fabrication advantages.

Are 3005 mechanical properties the same in every temper?

No. Temper, thickness, product form, and the applicable product specification materially affect tensile strength, yield strength, and elongation. For example, the reported 3005-T14 data on this page must not be treated as values for annealed or other H-temper products.

References & Data Notes

(n.d.). The Aluminum Association, International Alloy Designations and Chemical Composition Limits for Wrought Aluminum and Wrought Aluminum Alloys (Teal Sheets), December 2025. https://www.aluminum.org/sites/default/files/2026-01/Teal%20Sheets%20December%202025.pdf
(n.d.). AZoM: Aluminium / Aluminum 3005 Alloy (UNS A93005). https://www.azom.com/article.aspx?ArticleID=8730

Composition values are registered wrought-alloy limits from the Aluminum Association. Density is an Aluminum Association calculated nominal value. Other numerical properties are source-reported for 3005-T14 and are presented with their stated condition; verify current product-standard requirements with the supplier before design or procurement.