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EN-MC32110 Magnesium vs. EN 1.4438 Stainless Steel

EN-MC32110 magnesium belongs to the magnesium alloys classification, while EN 1.4438 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-MC32110 magnesium and the bottom bar is EN 1.4438 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60
180
Elastic (Young's, Tensile) Modulus, GPa 49
200
Elongation at Break, % 2.2
41
Fatigue Strength, MPa 80
220
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 19
79
Shear Strength, MPa 120
420
Tensile Strength: Ultimate (UTS), MPa 220
620
Tensile Strength: Yield (Proof), MPa 140
250

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Mechanical, °C 99
1000
Melting Completion (Liquidus), °C 600
1450
Melting Onset (Solidus), °C 500
1400
Specific Heat Capacity, J/kg-K 950
470
Thermal Conductivity, W/m-K 120
14
Thermal Expansion, µm/m-K 26
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 13
22
Density, g/cm3 2.1
7.9
Embodied Carbon, kg CO2/kg material 22
4.4
Embodied Energy, MJ/kg 150
60
Embodied Water, L/kg 920
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.3
200
Resilience: Unit (Modulus of Resilience), kJ/m3 210
150
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 58
25
Strength to Weight: Axial, points 29
22
Strength to Weight: Bending, points 38
20
Thermal Diffusivity, mm2/s 58
3.7
Thermal Shock Resistance, points 12
14

Alloy Composition


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Aluminum (Al), % 0 to 0.2
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
17.5 to 19.5
Copper (Cu), % 2.4 to 3.0
0
Iron (Fe), % 0 to 0.050
57.3 to 66.5
Magnesium (Mg), % 89.3 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0 to 2.0
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0 to 0.010
13 to 16
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.2
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Zinc (Zn), % 5.5 to 6.5
0
Residuals, % 0 to 0.010
0