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ZC63A Magnesium vs. N08031 Stainless Steel

ZC63A magnesium belongs to the magnesium alloys classification, while N08031 stainless steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, 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 N08031 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 48
210
Elongation at Break, % 3.3
45
Fatigue Strength, MPa 94
290
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 19
81
Shear Strength, MPa 130
510
Tensile Strength: Ultimate (UTS), MPa 220
730
Tensile Strength: Yield (Proof), MPa 130
310

Thermal Properties

Latent Heat of Fusion, J/g 330
310
Maximum Temperature: Mechanical, °C 98
1100
Melting Completion (Liquidus), °C 550
1440
Melting Onset (Solidus), °C 470
1390
Specific Heat Capacity, J/kg-K 950
460
Thermal Conductivity, W/m-K 120
12
Thermal Expansion, µm/m-K 26
18

Otherwise Unclassified Properties

Base Metal Price, % relative 13
39
Density, g/cm3 2.1
8.1
Embodied Carbon, kg CO2/kg material 22
7.1
Embodied Energy, MJ/kg 150
96
Embodied Water, L/kg 920
240

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.3
270
Resilience: Unit (Modulus of Resilience), kJ/m3 190
230
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 58
24
Strength to Weight: Axial, points 29
25
Strength to Weight: Bending, points 38
22
Thermal Diffusivity, mm2/s 58
3.1
Thermal Shock Resistance, points 12
14

Alloy Composition


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Carbon (C), % 0
0 to 0.015
Chromium (Cr), % 0
26 to 28
Copper (Cu), % 2.4 to 3.0
1.0 to 1.4
Iron (Fe), % 0
29 to 36.9
Magnesium (Mg), % 89.2 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0 to 2.0
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 0 to 0.010
30 to 32
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.2
0 to 0.3
Sulfur (S), % 0
0 to 0.010
Zinc (Zn), % 5.5 to 6.5
0
Residuals, % 0 to 0.3
0