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ASTM AZ91B-F
Category Magnesium Alloy
Designations United States: UNS S21800, ASTM A276, ASTM A580

Composition
ElementWeight %
Al  9.00 
Mn  0.13 
Zn  0.70 
Cu  0.30 

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
STEM Career Outlook

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

Salary Expectation

8 things to know about the interview question "What's your salary expectation"?

3D Scanners

A white paper to assist in the evaluation of 3D scanning hardware solutions.

Metal 3D Printing Design Guide

Direct Metal Laser Sintering (DMLS) 3D printing for parts with reduced cost and little waste.