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EN-MC21210 Magnesium vs. AISI 415 Stainless Steel

EN-MC21210 magnesium belongs to the magnesium alloys classification, while AISI 415 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-MC21210 magnesium and the bottom bar is AISI 415 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 48
260
Elastic (Young's, Tensile) Modulus, GPa 44
200
Elongation at Break, % 14
17
Fatigue Strength, MPa 70
430
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
76
Shear Strength, MPa 110
550
Tensile Strength: Ultimate (UTS), MPa 190
900
Tensile Strength: Yield (Proof), MPa 90
700

Thermal Properties

Latent Heat of Fusion, J/g 350
270
Maximum Temperature: Mechanical, °C 100
780
Melting Completion (Liquidus), °C 600
1450
Melting Onset (Solidus), °C 570
1400
Specific Heat Capacity, J/kg-K 1000
480
Thermal Conductivity, W/m-K 120
24
Thermal Expansion, µm/m-K 27
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 130
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 12
11
Density, g/cm3 1.6
7.8
Embodied Carbon, kg CO2/kg material 24
2.5
Embodied Energy, MJ/kg 160
35
Embodied Water, L/kg 980
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
140
Resilience: Unit (Modulus of Resilience), kJ/m3 92
1250
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 72
25
Strength to Weight: Axial, points 32
32
Strength to Weight: Bending, points 44
26
Thermal Diffusivity, mm2/s 76
6.4
Thermal Shock Resistance, points 11
33

Alloy Composition


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Aluminum (Al), % 1.6 to 2.6
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
11.5 to 14
Copper (Cu), % 0 to 0.010
0
Iron (Fe), % 0 to 0.0050
77.8 to 84
Magnesium (Mg), % 96.3 to 98.3
0
Manganese (Mn), % 0.1 to 0.7
0.5 to 1.0
Molybdenum (Mo), % 0
0.5 to 1.0
Nickel (Ni), % 0 to 0.0020
3.5 to 5.5
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.1
0 to 0.6
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.010
0