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EN-MC32110 Magnesium vs. EN 1.4558 Stainless Steel

EN-MC32110 magnesium belongs to the magnesium alloys classification, while EN 1.4558 stainless steel belongs to the iron alloys. There are 30 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-MC32110 magnesium and the bottom bar is EN 1.4558 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 49
200
Elongation at Break, % 2.2
39
Fatigue Strength, MPa 80
170
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 19
77
Shear Strength, MPa 120
350
Tensile Strength: Ultimate (UTS), MPa 220
510
Tensile Strength: Yield (Proof), MPa 140
200

Thermal Properties

Latent Heat of Fusion, J/g 330
300
Maximum Temperature: Mechanical, °C 99
1100
Melting Completion (Liquidus), °C 600
1400
Melting Onset (Solidus), °C 500
1350
Specific Heat Capacity, J/kg-K 950
480
Thermal Conductivity, W/m-K 120
12
Thermal Expansion, µm/m-K 26
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 140
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 13
31
Density, g/cm3 2.1
8.0
Embodied Carbon, kg CO2/kg material 22
5.5
Embodied Energy, MJ/kg 150
77
Embodied Water, L/kg 920
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.3
160
Resilience: Unit (Modulus of Resilience), kJ/m3 210
100
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 58
24
Strength to Weight: Axial, points 29
18
Strength to Weight: Bending, points 38
18
Thermal Diffusivity, mm2/s 58
3.1
Thermal Shock Resistance, points 12
12

Alloy Composition


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Aluminum (Al), % 0 to 0.2
0.15 to 0.45
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
20 to 23
Copper (Cu), % 2.4 to 3.0
0
Iron (Fe), % 0 to 0.050
39.2 to 47.9
Magnesium (Mg), % 89.3 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0 to 1.0
Nickel (Ni), % 0 to 0.010
32 to 35
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.2
0 to 0.7
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
0 to 0.6
Zinc (Zn), % 5.5 to 6.5
0
Residuals, % 0 to 0.010
0