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ZC63A Magnesium vs. ASTM A204 Steel

ZC63A magnesium belongs to the magnesium alloys classification, while ASTM A204 steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (1, 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 ZC63A magnesium and the bottom bar is ASTM A204 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60
160 to 180
Elastic (Young's, Tensile) Modulus, GPa 48
190
Elongation at Break, % 3.3
18 to 22
Fatigue Strength, MPa 94
200 to 220
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 19
73
Shear Strength, MPa 130
330 to 360
Tensile Strength: Ultimate (UTS), MPa 220
520 to 590
Tensile Strength: Yield (Proof), MPa 130
290 to 330

Thermal Properties

Latent Heat of Fusion, J/g 330
250
Maximum Temperature: Mechanical, °C 98
410
Melting Completion (Liquidus), °C 550
1470
Melting Onset (Solidus), °C 470
1420 to 1430
Specific Heat Capacity, J/kg-K 950
470
Thermal Conductivity, W/m-K 120
52
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 140
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 13
2.4
Density, g/cm3 2.1
7.9
Embodied Carbon, kg CO2/kg material 22
1.5
Embodied Energy, MJ/kg 150
20
Embodied Water, L/kg 920
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.3
90 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 190
220 to 290
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 58
24
Strength to Weight: Axial, points 29
18 to 21
Strength to Weight: Bending, points 38
18 to 20
Thermal Diffusivity, mm2/s 58
14
Thermal Shock Resistance, points 12
15 to 17