2007A Aluminum

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

2007A Aluminum (AA 2007A) is an active registered wrought aluminum–copper alloy in the 2000 series. Its composition combines 3.3–4.6% copper with magnesium and manganese for age-hardening response, while controlled bismuth, lead, and tin additions support free-machining behavior. It is therefore suited to precision turned or milled components where productive chip control and useful strength are important. 2007A is a distinct designation from 2007 and should be specified separately. Mechanical properties depend strongly on product form, thickness, and temper and must be taken from the applicable product specification.

Chemical Composition (wt.%)
Chemical Composition wt.%
Element	Min	Max
Silicon	—	0.8
Iron	—	0.8
Copper	3.3	4.6
Manganese	0.20	1.0
Magnesium	0.40	1.8
Chromium	—	0.10
Nickel	—	0.20
Zinc	—	0.8
Titanium	—	0.20
Bismuth	—	0.20
Lead	—	0.05
Tin	0.8	1.5
Other elements, each	—	0.10
Other elements, total	—	0.30
Aluminum	Remainder

Composition notes

Other elements, each: Maximum for each other element.
Other elements, total: Maximum total of other elements.

Registered chemical-composition limits for wrought AA 2007A, in weight percent. Aluminum is the remainder. “Each” and “Total” apply to other elements; no individual unlisted element may exceed the stated “Each” limit, and their combined content may not exceed the stated “Total” limit.

The Aluminum Association source reports calculated nominal density for the registered AA 2007A composition. It does not provide temper- and product-form-specific mechanical, thermal, or electrical property values in the supplied material record.

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

Table of 2007A Aluminum Properties

Table of 2007A Aluminum Properties
Physical Properties	Metric
Nominal density	2.81 Mg/m³
Nominal density	0.102 lb/in³2.82 g/cm³

Test conditions & data notes

Nominal density: Calculated nominal density for active wrought AA 2007A
Nominal density: Calculated nominal density for active wrought AA 2007A

Material Conditions & Tempers

AA 2007A is a wrought, heat-treatable alloy. Required temper, product form, dimensions, and applicable product specification should be stated on the purchase order because they govern the delivered mechanical properties. The following common heat-treatment designations describe metallurgical condition rather than guaranteed values for every 2007A product.

Condition	Tensile Strength	Yield / Proof Strength	Notes
O	—	—	Annealed condition, generally selected where maximum softness and formability are required before subsequent forming or machining. Mechanical-property limits must be taken from the applicable 2007A product standard.
T3	—	—	Solution heat-treated, cold worked, and naturally aged to a substantially stable condition. Availability and property limits depend on product form and size.
T4	—	—	Solution heat-treated and naturally aged to a substantially stable condition. Availability and property limits depend on product form and size.
T6	—	—	Solution heat-treated and artificially aged. Use only where the applicable product specification lists 2007A-T6 requirements.

Advantages & Limitations

Advantages	Limitations
Copper and magnesium provide a heat-treatable alloy system appropriate for strength-oriented wrought components. Bismuth, lead, and relatively high tin are controlled within the registered composition, supporting the alloy’s use for automatic-machining and precision-machined parts. The nominal density of 2.81 Mg/m³ retains aluminum’s favorable mass efficiency compared with ferrous materials. Manganese contributes to microstructural control alongside the primary Cu–Mg strengthening system. The registered 2007A designation has its own composition limits; it is not a substitute for 2007, 2007B, or 2007C.	Mechanical properties cannot be specified from the alloy designation alone; temper, product form, section size, and governing product standard are essential. As a copper-rich 2000-series alloy, 2007A generally requires more deliberate corrosion protection than common 5xxx or 6xxx alloys in aggressive or persistently wet service. The free-machining additions that aid chip formation can make the alloy less suitable than general-purpose alloys for applications demanding excellent weldability or highly ductile formed weld zones. Joining by fusion welding should be evaluated for the actual temper and service requirement, since welding can alter the local heat-treated condition. The use of lead-bearing alloy material may be restricted by customer, environmental, or end-use requirements; confirm compliance before selection.

Advantages

Limitations

Copper and magnesium provide a heat-treatable alloy system appropriate for strength-oriented wrought components.
Bismuth, lead, and relatively high tin are controlled within the registered composition, supporting the alloy’s use for automatic-machining and precision-machined parts.
The nominal density of 2.81 Mg/m³ retains aluminum’s favorable mass efficiency compared with ferrous materials.
Manganese contributes to microstructural control alongside the primary Cu–Mg strengthening system.
The registered 2007A designation has its own composition limits; it is not a substitute for 2007, 2007B, or 2007C.

Mechanical properties cannot be specified from the alloy designation alone; temper, product form, section size, and governing product standard are essential.
As a copper-rich 2000-series alloy, 2007A generally requires more deliberate corrosion protection than common 5xxx or 6xxx alloys in aggressive or persistently wet service.
The free-machining additions that aid chip formation can make the alloy less suitable than general-purpose alloys for applications demanding excellent weldability or highly ductile formed weld zones.
Joining by fusion welding should be evaluated for the actual temper and service requirement, since welding can alter the local heat-treated condition.
The use of lead-bearing alloy material may be restricted by customer, environmental, or end-use requirements; confirm compliance before selection.

Processing & Fabrication

Process	Description
Machining	2007A is primarily selected for precision machining. Use sharp, rigid tooling, stable workholding, and cutting conditions appropriate to the selected temper; verify chip control, surface finish, and dimensional stability on the actual bar, rod, or other product form.
Heat treatment	Strength is developed through solution heat treatment followed by natural or artificial aging when a heat-treated temper is specified. Use a qualified heat-treatment cycle from the applicable product specification or supplier documentation rather than applying a generic 2000-series cycle.
Forming	Perform demanding forming operations in an appropriate softer condition where needed, then heat treat if the design requires higher strength. Formability falls as the material is aged to higher-strength conditions.
Welding and joining	Assess fusion welding case by case because local heating can reduce properties in the heat-affected zone. Mechanical fastening, threaded features, and other low-heat assembly methods are often practical for machined 2007A components.
Surface protection	For corrosive, wet, or outdoor exposure, consider a validated cleaning, conversion, anodizing, painting, or other protective finishing system. Confirm finish compatibility with the copper-bearing substrate and the intended environment.

Applications

2007A is best considered for wrought parts produced with substantial turning, drilling, milling, or threading, where its alloying balance can improve manufacturing productivity while retaining heat-treatable 2000-series performance. Final material selection should be based on certified temper-specific properties and environmental requirements.

Precision-turned fittings and connectors: The controlled free-machining additions support chip breaking and efficient production of threaded, drilled, or closely toleranced features.
Machined mechanical hardware: Heat-treatable Cu–Mg chemistry makes the alloy relevant for compact parts that need more strength than non-heat-treatable general-purpose aluminum grades.
Instrument, automation, and machine components: The alloy is appropriate for precision-milled or turned bodies, adapters, collars, and similar components where machinability and low mass are both valuable.
Threaded fasteners and screw-machine parts: Its composition is tailored toward machinability, which is useful for repetitive production of detailed small components; temper and corrosion protection must be selected for the service environment.

Standards & Designations

Designation	Value	Description
Aluminum Association International Alloy Designation System	2007A	Active registered wrought aluminum alloy designation. The registered composition was submitted by Italy in 2001.
Aluminum Association designation	AA 2007A	AA prefix used with the registered 2007A wrought-alloy designation.

Frequently Asked Questions

Is 2007A the same alloy as 2007?

No. 2007A is separately registered and has distinct composition limits. In particular, its manganese range is 0.20–1.0%, its lead maximum is 0.05%, and its tin range is 0.8–1.5%; it should not be combined with 2007 on drawings, certificates, or purchase orders.

Why is 2007A used for machined parts?

2007A combines a heat-treatable aluminum–copper–magnesium base with controlled bismuth, lead, and tin additions. This chemistry is associated with free-machining behavior, making it useful for turned, drilled, threaded, and milled precision components.

Can a mechanical strength be specified for 2007A without a temper?

No. A strength requirement must identify the product form, temper, dimensions or thickness range, and the governing product standard. The registered Aluminum Association composition document establishes chemistry and nominal density, not mechanical-property limits for a particular temper.

References & Data Notes

(n.d.). The Aluminum Association — International Alloy Designations and Chemical Composition Limits for Wrought Aluminum and Wrought Aluminum Alloys, revised December 2025. https://www.aluminum.org/sites/default/files/2026-01/Teal%20Sheets%20December%202025.pdf
(n.d.). The Aluminum Association — International Alloy Designations and Chemical Composition Limits for Wrought Aluminum and Wrought Aluminum Alloys, revised August 2025. https://www.aluminum.org/sites/default/files/2025-10/Teal%20Sheets%202025.pdf

Composition and nominal density are source-reported for the exact registered wrought designation AA 2007A. No temper-specific mechanical, thermal, or electrical values were included because the supplied sources do not report them for this grade.