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Aluminum Alloys
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Wrought:
   AA 1xxx
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   AA 3xxx
   AA 4xxx
   AA 5xxx
   AA 6xxx
   AA 7xxx
Cast:
   2xx.0 or x2xx.0
   3xx.0 or x3xx.0
   4xx.0 or x4xx.0
   5xx.0 or x5xx.0
   7xx.0
   8xx.0
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AA 4043
Category Aluminum Alloy
Class Wrought

Composition
ElementWeight %
Al  94.8 
Si  5.20 

Mechanical Properties
Properties Conditions 
T (°C)Treatment
Density (×1000 kg/m3) 2.6-2.8 25  
Poisson's Ratio 0.33 25  
Elastic Modulus (GPa) 70-80 25  
Tensile Strength (Mpa) 285  25  H18  more
Yield Strength (Mpa) 270 
Elongation (%) 0.5 
Reduction in Area (%)  

Thermal Properties
Properties Conditions 
T (°C)Treatment
Thermal Conductivity (W/m-K) 163  25 

Electric Properties
Properties Conditions 
T (°C)Treatment
Electric Resistivity (10-9W-m) 41  25 
Glossary
Mechanical Engineers Outlook

Guide for those interested in becoming a mechanical engineer. Includes qualifications, pay, and job duties.

STEM Career Outlook

Wages, employment opportunities, and growth projections for STEM jobs.

Negotiate Your Salary

Learn the best principles to negotiate the salary you deserve!

Selecting the Right 3D Printer

Discover how to choose the right 3D printer for your needs and the key performance attributes to consider.