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WE54A Magnesium vs. S32950 Stainless Steel

WE54A magnesium belongs to the magnesium alloys classification, while S32950 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 S32950 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 85
260
Elastic (Young's, Tensile) Modulus, GPa 44
200
Elongation at Break, % 4.3 to 5.6
17
Fatigue Strength, MPa 98 to 130
330
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 17
80
Shear Strength, MPa 150 to 170
480
Tensile Strength: Ultimate (UTS), MPa 270 to 300
780
Tensile Strength: Yield (Proof), MPa 180
550

Thermal Properties

Latent Heat of Fusion, J/g 330
300
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 640
1430
Melting Onset (Solidus), °C 570
1390
Specific Heat Capacity, J/kg-K 960
480
Thermal Conductivity, W/m-K 52
16
Thermal Expansion, µm/m-K 25
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 47
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 34
17
Density, g/cm3 1.9
7.7
Embodied Carbon, kg CO2/kg material 29
3.4
Embodied Energy, MJ/kg 260
47
Embodied Water, L/kg 900
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10 to 14
120
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 380
730
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 62
25
Strength to Weight: Axial, points 39 to 43
28
Strength to Weight: Bending, points 49 to 51
24
Thermal Diffusivity, mm2/s 28
4.3
Thermal Shock Resistance, points 18 to 19
21

Alloy Composition


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Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
26 to 29
Copper (Cu), % 0 to 0.030
0
Iron (Fe), % 0 to 0.010
60.3 to 69.4
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 88.7 to 93.4
0
Manganese (Mn), % 0 to 0.030
0 to 2.0
Molybdenum (Mo), % 0
1.0 to 2.5
Nickel (Ni), % 0 to 0.0050
3.5 to 5.2
Nitrogen (N), % 0
0.15 to 0.35
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.010
0 to 0.6
Sulfur (S), % 0
0 to 0.010
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