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ASTM HM31A-F
Category Magnesium Alloy

Composition
ElementWeight %
Mn  1.20 
Th  3.00 

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) 290.0  25  F (extruded bars and shapes) 
Yield Strength (Mpa) 230.0 (185.0) 
Elongation (%) 10.0 
Reduction in Area (%)  
Note: Value in parentheses indicates yield strength for compression.
Shear Strength (MPa) 150  25  F (extruded bars and shapes) 

Thermal Properties
Properties Conditions 
T (°C)Treatment
Thermal Expansion (10-6/ºC) 26.1  20-91
Thermal Conductivity (W/m-K) 104.6  0 
Glossary
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.

STEM Career Outlook

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

Metal 3D Printing Design Guide

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