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EN-MC21320 Magnesium vs. EN 1.4028 Stainless Steel

EN-MC21320 magnesium belongs to the magnesium alloys classification, while EN 1.4028 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-MC21320 magnesium and the bottom bar is EN 1.4028 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 7.5
11 to 17
Fatigue Strength, MPa 95
230 to 400
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
76
Shear Strength, MPa 130
410 to 550
Tensile Strength: Ultimate (UTS), MPa 230
660 to 930
Tensile Strength: Yield (Proof), MPa 140
390 to 730

Thermal Properties

Latent Heat of Fusion, J/g 370
270
Maximum Temperature: Mechanical, °C 110
760
Melting Completion (Liquidus), °C 600
1440
Melting Onset (Solidus), °C 530
1400
Specific Heat Capacity, J/kg-K 1000
480
Thermal Conductivity, W/m-K 66
30
Thermal Expansion, µm/m-K 26
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 91
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 12
7.0
Density, g/cm3 1.6
7.7
Embodied Carbon, kg CO2/kg material 23
1.9
Embodied Energy, MJ/kg 160
27
Embodied Water, L/kg 980
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15
94 to 96
Resilience: Unit (Modulus of Resilience), kJ/m3 200
380 to 1360
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 72
25
Strength to Weight: Axial, points 38
24 to 33
Strength to Weight: Bending, points 50
22 to 27
Thermal Diffusivity, mm2/s 40
8.1
Thermal Shock Resistance, points 13
23 to 32

Alloy Composition


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Aluminum (Al), % 3.5 to 5.0
0
Carbon (C), % 0
0.26 to 0.35
Chromium (Cr), % 0
12 to 14
Copper (Cu), % 0 to 0.010
0
Iron (Fe), % 0 to 0.0050
83.1 to 87.7
Magnesium (Mg), % 92.5 to 95.9
0
Manganese (Mn), % 0.1 to 0.7
0 to 1.5
Nickel (Ni), % 0 to 0.0020
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.5 to 1.5
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.010
0