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ZC63A Magnesium vs. ASTM A387 Grade 5 Steel

ZC63A magnesium belongs to the magnesium alloys classification, while ASTM A387 grade 5 steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (2, 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 A387 grade 5 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 48
190
Elongation at Break, % 3.3
20 to 21
Fatigue Strength, MPa 94
160 to 240
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 19
74
Shear Strength, MPa 130
310 to 380
Tensile Strength: Ultimate (UTS), MPa 220
500 to 600
Tensile Strength: Yield (Proof), MPa 130
230 to 350

Thermal Properties

Latent Heat of Fusion, J/g 330
260
Maximum Temperature: Mechanical, °C 98
510
Melting Completion (Liquidus), °C 550
1460
Melting Onset (Solidus), °C 470
1420
Specific Heat Capacity, J/kg-K 950
470
Thermal Conductivity, W/m-K 120
40
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 140
9.2

Otherwise Unclassified Properties

Base Metal Price, % relative 13
4.3
Density, g/cm3 2.1
7.8
Embodied Carbon, kg CO2/kg material 22
1.7
Embodied Energy, MJ/kg 150
23
Embodied Water, L/kg 920
69

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.3
83 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 190
140 to 320
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 58
25
Strength to Weight: Axial, points 29
18 to 21
Strength to Weight: Bending, points 38
18 to 20
Thermal Diffusivity, mm2/s 58
11
Thermal Shock Resistance, points 12
14 to 17

Alloy Composition


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Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
4.0 to 6.0
Copper (Cu), % 2.4 to 3.0
0
Iron (Fe), % 0
92.1 to 95.3
Magnesium (Mg), % 89.2 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0.3 to 0.6
Molybdenum (Mo), % 0
0.45 to 0.65
Nickel (Ni), % 0 to 0.010
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.2
0 to 0.5
Sulfur (S), % 0
0 to 0.025
Zinc (Zn), % 5.5 to 6.5
0
Residuals, % 0 to 0.3
0