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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