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ZC63A Magnesium vs. S44635 Stainless Steel

ZC63A magnesium belongs to the magnesium alloys classification, while S44635 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (4, 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 S44635 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60
240
Elastic (Young's, Tensile) Modulus, GPa 48
210
Elongation at Break, % 3.3
23
Fatigue Strength, MPa 94
390
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 19
81
Shear Strength, MPa 130
450
Tensile Strength: Ultimate (UTS), MPa 220
710
Tensile Strength: Yield (Proof), MPa 130
580

Thermal Properties

Latent Heat of Fusion, J/g 330
300
Maximum Temperature: Mechanical, °C 98
1100
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
16
Thermal Expansion, µm/m-K 26
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 13
22
Density, g/cm3 2.1
7.8
Embodied Carbon, kg CO2/kg material 22
4.4
Embodied Energy, MJ/kg 150
62
Embodied Water, L/kg 920
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.3
150
Resilience: Unit (Modulus of Resilience), kJ/m3 190
810
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 58
25
Strength to Weight: Axial, points 29
25
Strength to Weight: Bending, points 38
23
Thermal Diffusivity, mm2/s 58
4.4
Thermal Shock Resistance, points 12
23

Alloy Composition


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Carbon (C), % 0
0 to 0.025
Chromium (Cr), % 0
24.5 to 26
Copper (Cu), % 2.4 to 3.0
0
Iron (Fe), % 0
61.5 to 68.5
Magnesium (Mg), % 89.2 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0 to 1.0
Molybdenum (Mo), % 0
3.5 to 4.5
Nickel (Ni), % 0 to 0.010
3.5 to 4.5
Niobium (Nb), % 0
0.2 to 0.8
Nitrogen (N), % 0
0 to 0.035
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.2
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0
0.2 to 0.8
Zinc (Zn), % 5.5 to 6.5
0
Residuals, % 0 to 0.3
0