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AA 7178
Category Aluminum Alloy
Class Wrought

Composition
ElementWeight %
Al  88.1 
Cu  2.0 
Mg  2.7 
Cr  0.26 
Zn  6.8 

Mechanical Properties
Properties Conditions 
T (°C)Treatment
Density (×1000 kg/m3) 2.82 25  
Poisson's Ratio 0.33 25  
Elastic Modulus (GPa) 70-80 25  

Thermal Properties
Properties Conditions 
T (°C)Treatment
Thermal Expansion (10-6/ºC) 23.4  20-100  
Glossary
CNC Machining Design Guide

Optimize your designs, reduce machining time, and lower your costs.

STEM Career Outlook

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

Selecting the Right 3D Printer

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

Negotiate Your Salary

Learn the best principles to negotiate the salary you deserve!