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EN-MC95310 Magnesium vs. S35000 Stainless Steel

EN-MC95310 magnesium belongs to the magnesium alloys classification, while S35000 stainless steel belongs to the iron alloys. There are 30 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 EN-MC95310 magnesium and the bottom bar is S35000 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 2.2
2.3 to 14
Fatigue Strength, MPa 110
380 to 520
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
78
Shear Strength, MPa 160
740 to 950
Tensile Strength: Ultimate (UTS), MPa 280
1300 to 1570
Tensile Strength: Yield (Proof), MPa 190
660 to 1160

Thermal Properties

Latent Heat of Fusion, J/g 330
280
Maximum Temperature: Mechanical, °C 170
900
Melting Completion (Liquidus), °C 650
1460
Melting Onset (Solidus), °C 540
1410
Specific Heat Capacity, J/kg-K 960
470
Thermal Conductivity, W/m-K 51
16
Thermal Expansion, µm/m-K 25
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 50
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 34
14
Density, g/cm3 1.9
7.8
Embodied Carbon, kg CO2/kg material 29
3.2
Embodied Energy, MJ/kg 260
44
Embodied Water, L/kg 900
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.6
28 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 420
1070 to 3360
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 61
25
Strength to Weight: Axial, points 40
46 to 56
Strength to Weight: Bending, points 49
34 to 38
Thermal Diffusivity, mm2/s 28
4.4
Thermal Shock Resistance, points 18
42 to 51

Alloy Composition

Carbon (C), % 0
0.070 to 0.11
Chromium (Cr), % 0
16 to 17
Copper (Cu), % 0 to 0.030
0
Iron (Fe), % 0 to 0.010
72.7 to 76.9
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 88.9 to 93.4
0
Manganese (Mn), % 0 to 0.15
0.5 to 1.3
Molybdenum (Mo), % 0
2.5 to 3.2
Nickel (Ni), % 0 to 0.0050
4.0 to 5.0
Nitrogen (N), % 0
0.070 to 0.13
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.010
0 to 0.5
Sulfur (S), % 0
0 to 0.030
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