Engineer's
Handbook
 
Reference Tables
 
Rapid
Prototyping
 
Manufacturing
Methods
 
Engineering
Materials
 
Engineering
Software
 
Reference Books
 
Mechanical
Components
 

Reference Tables -- Wrought Aluminum Alloys

Aluminum and its alloys are divided into two broad classes, castings and wrought (mechanically worked products). The latter is sub-divided into heat-treatable and non-heat-treatable alloys, and into various forms produced by mechanical working.

Wrought Aluminum Alloys
Series Main Alloy Alloy Properties
1xxx
None (99% alu)
Unalloyed aluminum is highly corrosion resistant, low strength, workable, conductive. Non-heat-treatable.
2xxx
Copper
Gives strength, hardness, machinability. Heat-treatable.
3xxx
Manganese
Adds moderate strength, good workability. Non-heat-treatable.
4xxx
Silicon
 
5xxx
Magnesium
Moderate to high strength. Corrosion resistant. Non-heat-treatable.
6xxx
Magnesium & Silicon
Increases strength, formability, corrosion resistance. Heat-treatable.
7xxx
Zinc
For greatest strength. Heat treatable. Other alloying elements such as copper, magnesium, chromium and zirconium may be specified.
8xxx
Tin, Lithium & Other elements.
Effects vary.
9xxx
N/A
(This series is unused presently.)

Casting Alloys
Series Main Alloy Alloy Notes
1xx.x
None
(99% alum.)
Unalloyed aluminum.
2xx.x
Copper
Used extensively for applications where excellent strength and hardness at high temperatures are required. Heavy-duty pistons; motorcycle, diesel and aircraft pistons; aircraft generator housings; and air-cooled cylinder heads are typical applications.
3xx.x
Silicon
Other alloying elements such as copper and magnesium are specified. Typical applications are airframe castings, machine parts, truck chassis parts, aircraft and missile components, and structural parts requiring high strength.
4xx.x
Silicon
 
5xx.x
Magnesium
Alloys possess a high and stable combination of strength, shock resistance and ductility. It is ideally suited for parts in instruments and computing devices where dimensional stability is of major importance.
6xx.x
N/A
(This series is unused presently.)
7xx.x
Zinc
Employed when a combination of good mechanical properties without heat treatment is needed. It also shows good shock and corrosion resistance and good machinability and dimensional stability.
8xx.x
Tin
 
9xx.x
N/A
(This series is unused presently.)

 

 

 

 

 

 

 


Copyright © 2004 - 2006 -- EngineersHandbook.com

All Rights Reserved - Contact Information
Privacy Policy
Disclaimer