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ZC63A Magnesium vs. S32050 Stainless Steel

ZC63A magnesium belongs to the magnesium alloys classification, while S32050 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, 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 S32050 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60
220
Elastic (Young's, Tensile) Modulus, GPa 48
210
Elongation at Break, % 3.3
46
Fatigue Strength, MPa 94
340
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 19
81
Shear Strength, MPa 130
540
Tensile Strength: Ultimate (UTS), MPa 220
770
Tensile Strength: Yield (Proof), MPa 130
370

Thermal Properties

Latent Heat of Fusion, J/g 330
310
Maximum Temperature: Mechanical, °C 98
1100
Melting Completion (Liquidus), °C 550
1460
Melting Onset (Solidus), °C 470
1410
Specific Heat Capacity, J/kg-K 950
470
Thermal Conductivity, W/m-K 120
12
Thermal Expansion, µm/m-K 26
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 13
31
Density, g/cm3 2.1
8.0
Embodied Carbon, kg CO2/kg material 22
6.0
Embodied Energy, MJ/kg 150
81
Embodied Water, L/kg 920
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.3
290
Resilience: Unit (Modulus of Resilience), kJ/m3 190
330
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 58
25
Strength to Weight: Axial, points 29
27
Strength to Weight: Bending, points 38
23
Thermal Diffusivity, mm2/s 58
3.3
Thermal Shock Resistance, points 12
17

Alloy Composition

Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
22 to 24
Copper (Cu), % 2.4 to 3.0
0 to 0.4
Iron (Fe), % 0
43.1 to 51.8
Magnesium (Mg), % 89.2 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0 to 1.5
Molybdenum (Mo), % 0
6.0 to 6.6
Nickel (Ni), % 0 to 0.010
20 to 23
Nitrogen (N), % 0
0.21 to 0.32
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.2
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Zinc (Zn), % 5.5 to 6.5
0
Residuals, % 0 to 0.3
0