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ASTM AZ91A-F
Category Magnesium Alloy
Designations United States: UNS S20910, ASTM A276, ASTM A580, ASTM A412

Composition
ElementWeight %
Al  9.00 
Mn  0.13 
Zn  0.70 

Mechanical Properties
Properties Conditions 
T (°C)Treatment
Density (×1000 kg/m3) 1.81 25  
Poisson's Ratio 0.35 25  
Elastic Modulus (GPa) 44.8 25  
Tensile Strength (Mpa) 230.0  25  F (die casting) 
Yield Strength (Mpa) 150.0 (165.0) 
Elongation (%) 3.0 
Reduction in Area (%)  
Note: Value in parentheses indicates yield strength for compression.
Hardness (HB500) 63  25  F (die casting) 
Shear Strength (MPa) 140  25  F (die casting) 

Thermal Properties
Properties Conditions 
T (°C)Treatment
Thermal Expansion (10-6/ºC) 26  20-100
Thermal Conductivity (W/m-K) 71.13  0 
Glossary
Essentials of Manufacturing

Information, coverage of important developments and expert commentary in manufacturing.

Selecting the Right 3D Printer

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

Mechanical Engineers Outlook

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

CNC Machining Design Guide

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