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ASTM AZ91C-T6
Category Magnesium Alloy
Designations United States: UNS S13800

Composition
ElementWeight %
Al  8.70 
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) 275.0  25  T6 (sand casting, permanent mold casting) 
Yield Strength (Mpa) 195.0 (145.0) 
Elongation (%) 6.0 
Reduction in Area (%)  
Note: Value in parentheses indicates yield strength for compression.
Hardness (HB500) 66  25  T6 (sand casting, permanent mold casting) 
Shear Strength (MPa) 145  25  T6 (sand casting, permanent mold casting) 

Thermal Properties
Properties Conditions 
T (°C)Treatment
Thermal Expansion (10-6/ºC) 26  20-100 T6 
Thermal Conductivity (W/m-K) 71.13  0  T6 
Glossary