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S44660 Stainless Steel vs. ZE41A Magnesium

S44660 stainless steel belongs to the iron alloys classification, while ZE41A magnesium belongs to the magnesium alloys. There are 31 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 S44660 stainless steel and the bottom bar is ZE41A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
63
Elastic (Young's, Tensile) Modulus, GPa 210
45
Elongation at Break, % 20
3.3
Fatigue Strength, MPa 330
98
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 81
18
Shear Strength, MPa 410
150
Tensile Strength: Ultimate (UTS), MPa 660
210
Tensile Strength: Yield (Proof), MPa 510
140

Thermal Properties

Latent Heat of Fusion, J/g 300
330
Maximum Temperature: Mechanical, °C 1100
150
Melting Completion (Liquidus), °C 1460
640
Melting Onset (Solidus), °C 1410
540
Specific Heat Capacity, J/kg-K 480
970
Thermal Conductivity, W/m-K 17
110
Thermal Expansion, µm/m-K 11
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
27
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
130

Otherwise Unclassified Properties

Base Metal Price, % relative 21
18
Density, g/cm3 7.7
1.9
Embodied Carbon, kg CO2/kg material 4.3
24
Embodied Energy, MJ/kg 61
170
Embodied Water, L/kg 180
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
6.1
Resilience: Unit (Modulus of Resilience), kJ/m3 640
220
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
63
Strength to Weight: Axial, points 24
31
Strength to Weight: Bending, points 22
41
Thermal Diffusivity, mm2/s 4.5
59
Thermal Shock Resistance, points 21
12

Alloy Composition

Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 25 to 28
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 60.4 to 71
0
Magnesium (Mg), % 0
91.7 to 95.4
Manganese (Mn), % 0 to 1.0
0 to 0.15
Molybdenum (Mo), % 3.0 to 4.0
0
Nickel (Ni), % 1.0 to 3.5
0 to 0.010
Niobium (Nb), % 0.2 to 1.0
0
Nitrogen (N), % 0 to 0.040
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0.2 to 1.0
0
Unspecified Rare Earths, % 0
0.75 to 1.8
Zinc (Zn), % 0
3.5 to 5.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3