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EN-MC95310 Magnesium vs. AISI 308 Stainless Steel

EN-MC95310 magnesium belongs to the magnesium alloys classification, while AISI 308 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 EN-MC95310 magnesium and the bottom bar is AISI 308 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 85
160
Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 2.2
45
Fatigue Strength, MPa 110
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
78
Shear Strength, MPa 160
410
Tensile Strength: Ultimate (UTS), MPa 280
590
Tensile Strength: Yield (Proof), MPa 190
230

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Mechanical, °C 170
990
Melting Completion (Liquidus), °C 650
1420
Melting Onset (Solidus), °C 540
1380
Specific Heat Capacity, J/kg-K 960
480
Thermal Conductivity, W/m-K 51
15
Thermal Expansion, µm/m-K 25
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 50
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 34
17
Density, g/cm3 1.9
7.8
Embodied Carbon, kg CO2/kg material 29
3.2
Embodied Energy, MJ/kg 260
46
Embodied Water, L/kg 900
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.6
210
Resilience: Unit (Modulus of Resilience), kJ/m3 420
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 61
25
Strength to Weight: Axial, points 40
21
Strength to Weight: Bending, points 49
20
Thermal Diffusivity, mm2/s 28
4.1
Thermal Shock Resistance, points 18
13

Alloy Composition

Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
19 to 21
Copper (Cu), % 0 to 0.030
0
Iron (Fe), % 0 to 0.010
64.1 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 2.0
Nickel (Ni), % 0 to 0.0050
10 to 12
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.010
0 to 0.75
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