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ASTM ZK51A-T5
Category Magnesium Alloy

Composition
ElementWeight %
Zn  4.60 
Zr  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) 205.0  25  T5 (sand casting, permanent mold casting) 
Yield Strength (Mpa) 165.0 
Elongation (%) 3.5 
Reduction in Area (%)  
Hardness (HB500) 65  25  T5 (sand casting, permanent mold casting) 
Shear Strength (MPa) 160  25  T5 (sand casting, permanent mold casting) 

Thermal Properties
Properties Conditions 
T (°C)Treatment
Thermal Expansion (10-6/ºC) 26.1  20 T5 
Thermal Conductivity (W/m-K) 108.78  0  T5 
Glossary