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EN-MC21210 Magnesium vs. EN 1.4905 Stainless Steel

EN-MC21210 magnesium belongs to the magnesium alloys classification, while EN 1.4905 stainless steel belongs to the iron alloys. There are 30 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 EN 1.4905 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
190
Elongation at Break, % 14
19
Fatigue Strength, MPa 70
330
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
76
Shear Strength, MPa 110
460
Tensile Strength: Ultimate (UTS), MPa 190
740
Tensile Strength: Yield (Proof), MPa 90
510

Thermal Properties

Latent Heat of Fusion, J/g 350
270
Maximum Temperature: Mechanical, °C 100
660
Melting Completion (Liquidus), °C 600
1480
Melting Onset (Solidus), °C 570
1440
Specific Heat Capacity, J/kg-K 1000
470
Thermal Conductivity, W/m-K 120
26
Thermal Expansion, µm/m-K 27
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
3.7
Electrical Conductivity: Equal Weight (Specific), % IACS 130
4.2

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 1.6
7.9
Embodied Carbon, kg CO2/kg material 24
2.8
Embodied Energy, MJ/kg 160
40
Embodied Water, L/kg 980
90

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
130
Resilience: Unit (Modulus of Resilience), kJ/m3 92
680
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 72
24
Strength to Weight: Axial, points 32
26
Strength to Weight: Bending, points 44
23
Thermal Diffusivity, mm2/s 76
7.0
Thermal Shock Resistance, points 11
25

Alloy Composition


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Aluminum (Al), % 1.6 to 2.6
0 to 0.040
Boron (B), % 0
0.00050 to 0.0050
Carbon (C), % 0
0.090 to 0.13
Chromium (Cr), % 0
8.5 to 9.5
Copper (Cu), % 0 to 0.010
0
Iron (Fe), % 0 to 0.0050
86.2 to 88.8
Magnesium (Mg), % 96.3 to 98.3
0
Manganese (Mn), % 0.1 to 0.7
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0 to 0.0020
0.1 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0
0.050 to 0.090
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.1
0.1 to 0.5
Sulfur (S), % 0
0 to 0.010
Tungsten (W), % 0
0.9 to 1.1
Vanadium (V), % 0
0.18 to 0.25
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.010
0