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ASTM A356 Grade 6 vs. EZ33A Magnesium

ASTM A356 grade 6 belongs to the iron alloys classification, while EZ33A magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is ASTM A356 grade 6 and the bottom bar is EZ33A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
55
Elastic (Young's, Tensile) Modulus, GPa 190
44
Elongation at Break, % 25
2.6
Fatigue Strength, MPa 250
70
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
17
Tensile Strength: Ultimate (UTS), MPa 550
150
Tensile Strength: Yield (Proof), MPa 350
100

Thermal Properties

Latent Heat of Fusion, J/g 250
330
Maximum Temperature: Mechanical, °C 430
250
Melting Completion (Liquidus), °C 1460
640
Melting Onset (Solidus), °C 1420
570
Specific Heat Capacity, J/kg-K 470
970
Thermal Conductivity, W/m-K 41
100
Thermal Expansion, µm/m-K 13
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
24
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
110

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
25
Density, g/cm3 7.8
1.9
Embodied Carbon, kg CO2/kg material 1.6
25
Embodied Energy, MJ/kg 21
190
Embodied Water, L/kg 53
930

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
3.6
Resilience: Unit (Modulus of Resilience), kJ/m3 320
120
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
61
Strength to Weight: Axial, points 20
22
Strength to Weight: Bending, points 19
33
Thermal Diffusivity, mm2/s 11
54
Thermal Shock Resistance, points 16
9.2

Alloy Composition

Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 1.0 to 1.5
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 96.2 to 98.1
0
Magnesium (Mg), % 0
91.5 to 95
Manganese (Mn), % 0.5 to 0.8
0
Molybdenum (Mo), % 0.45 to 0.65
0
Nickel (Ni), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 0.6
0
Sulfur (S), % 0 to 0.030
0
Unspecified Rare Earths, % 0
2.5 to 4.0
Zinc (Zn), % 0
2.0 to 3.1
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3