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S44536 Stainless Steel vs. WE54A Magnesium

S44536 stainless steel belongs to the iron alloys classification, while WE54A magnesium belongs to the magnesium 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 S44536 stainless steel and the bottom bar is WE54A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
85
Elastic (Young's, Tensile) Modulus, GPa 200
44
Elongation at Break, % 22
4.3 to 5.6
Fatigue Strength, MPa 190
98 to 130
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 78
17
Shear Strength, MPa 290
150 to 170
Tensile Strength: Ultimate (UTS), MPa 460
270 to 300
Tensile Strength: Yield (Proof), MPa 280
180

Thermal Properties

Latent Heat of Fusion, J/g 290
330
Maximum Temperature: Mechanical, °C 990
170
Melting Completion (Liquidus), °C 1440
640
Melting Onset (Solidus), °C 1390
570
Specific Heat Capacity, J/kg-K 480
960
Thermal Conductivity, W/m-K 21
52
Thermal Expansion, µm/m-K 11
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
10
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
47

Otherwise Unclassified Properties

Base Metal Price, % relative 13
34
Density, g/cm3 7.7
1.9
Embodied Carbon, kg CO2/kg material 2.8
29
Embodied Energy, MJ/kg 41
260
Embodied Water, L/kg 140
900

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 89
10 to 14
Resilience: Unit (Modulus of Resilience), kJ/m3 200
360 to 380
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
62
Strength to Weight: Axial, points 17
39 to 43
Strength to Weight: Bending, points 17
49 to 51
Thermal Diffusivity, mm2/s 5.6
28
Thermal Shock Resistance, points 16
18 to 19

Alloy Composition

Carbon (C), % 0 to 0.015
0
Chromium (Cr), % 20 to 23
0
Copper (Cu), % 0
0 to 0.030
Iron (Fe), % 72.8 to 80
0 to 0.010
Lithium (Li), % 0
0 to 0.2
Magnesium (Mg), % 0
88.7 to 93.4
Manganese (Mn), % 0 to 1.0
0 to 0.030
Nickel (Ni), % 0 to 0.5
0 to 0.0050
Niobium (Nb), % 0.050 to 0.8
0
Nitrogen (N), % 0 to 0.015
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.010
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0 to 0.8
0
Unspecified Rare Earths, % 0
1.5 to 4.0
Yttrium (Y), % 0
4.8 to 5.5
Zinc (Zn), % 0
0 to 0.2
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3