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EN-MC21210 Magnesium vs. AISI 416 Stainless Steel

EN-MC21210 magnesium belongs to the magnesium alloys classification, while AISI 416 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (2, 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 416 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 48
230 to 320
Elastic (Young's, Tensile) Modulus, GPa 44
190
Elongation at Break, % 14
13 to 31
Fatigue Strength, MPa 70
230 to 340
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
76
Shear Strength, MPa 110
340 to 480
Tensile Strength: Ultimate (UTS), MPa 190
510 to 800
Tensile Strength: Yield (Proof), MPa 90
290 to 600

Thermal Properties

Latent Heat of Fusion, J/g 350
270
Maximum Temperature: Mechanical, °C 100
680
Melting Completion (Liquidus), °C 600
1530
Melting Onset (Solidus), °C 570
1480
Specific Heat Capacity, J/kg-K 1000
480
Thermal Conductivity, W/m-K 120
30
Thermal Expansion, µm/m-K 27
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 130
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 12
7.0
Density, g/cm3 1.6
7.7
Embodied Carbon, kg CO2/kg material 24
1.9
Embodied Energy, MJ/kg 160
27
Embodied Water, L/kg 980
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
98 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 92
220 to 940
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 72
25
Strength to Weight: Axial, points 32
18 to 29
Strength to Weight: Bending, points 44
18 to 25
Thermal Diffusivity, mm2/s 76
8.1
Thermal Shock Resistance, points 11
19 to 30

Alloy Composition


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Aluminum (Al), % 1.6 to 2.6
0
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
12 to 14
Copper (Cu), % 0 to 0.010
0
Iron (Fe), % 0 to 0.0050
83.2 to 87.9
Magnesium (Mg), % 96.3 to 98.3
0
Manganese (Mn), % 0.1 to 0.7
0 to 1.3
Nickel (Ni), % 0 to 0.0020
0
Phosphorus (P), % 0
0 to 0.060
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0
0.15 to 0.35
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.010
0