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EN-MC95310 Magnesium vs. S44660 Stainless Steel

EN-MC95310 magnesium belongs to the magnesium alloys classification, while S44660 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, 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 EN-MC95310 magnesium and the bottom bar is S44660 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 85
210
Elastic (Young's, Tensile) Modulus, GPa 45
210
Elongation at Break, % 2.2
20
Fatigue Strength, MPa 110
330
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 17
81
Shear Strength, MPa 160
410
Tensile Strength: Ultimate (UTS), MPa 280
660
Tensile Strength: Yield (Proof), MPa 190
510

Thermal Properties

Latent Heat of Fusion, J/g 330
300
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 650
1460
Melting Onset (Solidus), °C 540
1410
Specific Heat Capacity, J/kg-K 960
480
Thermal Conductivity, W/m-K 51
17
Thermal Expansion, µm/m-K 25
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 50
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 34
21
Density, g/cm3 1.9
7.7
Embodied Carbon, kg CO2/kg material 29
4.3
Embodied Energy, MJ/kg 260
61
Embodied Water, L/kg 900
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.6
120
Resilience: Unit (Modulus of Resilience), kJ/m3 420
640
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 61
25
Strength to Weight: Axial, points 40
24
Strength to Weight: Bending, points 49
22
Thermal Diffusivity, mm2/s 28
4.5
Thermal Shock Resistance, points 18
21

Alloy Composition

Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
25 to 28
Copper (Cu), % 0 to 0.030
0
Iron (Fe), % 0 to 0.010
60.4 to 71
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 88.9 to 93.4
0
Manganese (Mn), % 0 to 0.15
0 to 1.0
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0 to 0.0050
1.0 to 3.5
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0
0 to 0.040
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.010
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0
0.2 to 1.0
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 0.010
0