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WE54A Magnesium vs. S32654 Stainless Steel

WE54A magnesium belongs to the magnesium alloys classification, while S32654 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 WE54A magnesium and the bottom bar is S32654 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 85
220
Elastic (Young's, Tensile) Modulus, GPa 44
210
Elongation at Break, % 4.3 to 5.6
45
Fatigue Strength, MPa 98 to 130
450
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
82
Shear Strength, MPa 150 to 170
590
Tensile Strength: Ultimate (UTS), MPa 270 to 300
850
Tensile Strength: Yield (Proof), MPa 180
490

Thermal Properties

Latent Heat of Fusion, J/g 330
310
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 640
1450
Melting Onset (Solidus), °C 570
1410
Specific Heat Capacity, J/kg-K 960
460
Thermal Conductivity, W/m-K 52
11
Thermal Expansion, µm/m-K 25
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 47
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 34
34
Density, g/cm3 1.9
8.0
Embodied Carbon, kg CO2/kg material 29
6.4
Embodied Energy, MJ/kg 260
87
Embodied Water, L/kg 900
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10 to 14
330
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 380
570
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 62
25
Strength to Weight: Axial, points 39 to 43
29
Strength to Weight: Bending, points 49 to 51
25
Thermal Diffusivity, mm2/s 28
2.9
Thermal Shock Resistance, points 18 to 19
19

Alloy Composition


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Carbon (C), % 0
0 to 0.020
Chromium (Cr), % 0
24 to 25
Copper (Cu), % 0 to 0.030
0.3 to 0.6
Iron (Fe), % 0 to 0.010
38.3 to 45.3
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 88.7 to 93.4
0
Manganese (Mn), % 0 to 0.030
2.0 to 4.0
Molybdenum (Mo), % 0
7.0 to 8.0
Nickel (Ni), % 0 to 0.0050
21 to 23
Nitrogen (N), % 0
0.45 to 0.55
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.010
0 to 0.5
Sulfur (S), % 0
0 to 0.0050
Unspecified Rare Earths, % 1.5 to 4.0
0
Yttrium (Y), % 4.8 to 5.5
0
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0