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EN-MC21210 Magnesium vs. EN 1.4029 Stainless Steel

EN-MC21210 magnesium belongs to the magnesium alloys classification, while EN 1.4029 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-MC21210 magnesium and the bottom bar is EN 1.4029 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
190
Elongation at Break, % 14
10 to 20
Fatigue Strength, MPa 70
270 to 400
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
76
Shear Strength, MPa 110
440 to 550
Tensile Strength: Ultimate (UTS), MPa 190
700 to 930
Tensile Strength: Yield (Proof), MPa 90
410 to 740

Thermal Properties

Latent Heat of Fusion, J/g 350
270
Maximum Temperature: Mechanical, °C 100
750
Melting Completion (Liquidus), °C 600
1440
Melting Onset (Solidus), °C 570
1400
Specific Heat Capacity, J/kg-K 1000
480
Thermal Conductivity, W/m-K 120
30
Thermal Expansion, µm/m-K 27
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
3.1
Electrical Conductivity: Equal Weight (Specific), % IACS 130
3.7

Otherwise Unclassified Properties

Base Metal Price, % relative 12
7.0
Density, g/cm3 1.6
7.7
Embodied Carbon, kg CO2/kg material 24
2.0
Embodied Energy, MJ/kg 160
28
Embodied Water, L/kg 980
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
89 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 92
440 to 1410
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 72
25
Strength to Weight: Axial, points 32
25 to 33
Strength to Weight: Bending, points 44
23 to 27
Thermal Diffusivity, mm2/s 76
8.1
Thermal Shock Resistance, points 11
26 to 34

Alloy Composition


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Aluminum (Al), % 1.6 to 2.6
0
Carbon (C), % 0
0.25 to 0.32
Chromium (Cr), % 0
12 to 13.5
Copper (Cu), % 0 to 0.010
0
Iron (Fe), % 0 to 0.0050
82.8 to 87.6
Magnesium (Mg), % 96.3 to 98.3
0
Manganese (Mn), % 0.1 to 0.7
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.6
Nickel (Ni), % 0 to 0.0020
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0
0.15 to 0.25
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.010
0