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EN-MC21320 Magnesium vs. EN 1.4529 Stainless Steel

EN-MC21320 magnesium belongs to the magnesium alloys classification, while EN 1.4529 stainless steel belongs to the iron alloys. There are 31 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 1.4529 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 68
220
Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 7.5
43
Fatigue Strength, MPa 95
310
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
80
Shear Strength, MPa 130
520
Tensile Strength: Ultimate (UTS), MPa 230
750
Tensile Strength: Yield (Proof), MPa 140
340

Thermal Properties

Latent Heat of Fusion, J/g 370
300
Maximum Temperature: Mechanical, °C 110
1100
Melting Completion (Liquidus), °C 600
1460
Melting Onset (Solidus), °C 530
1410
Specific Heat Capacity, J/kg-K 1000
460
Thermal Conductivity, W/m-K 66
12
Thermal Expansion, µm/m-K 26
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 91
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 12
33
Density, g/cm3 1.6
8.1
Embodied Carbon, kg CO2/kg material 23
6.2
Embodied Energy, MJ/kg 160
84
Embodied Water, L/kg 980
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15
260
Resilience: Unit (Modulus of Resilience), kJ/m3 200
280
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 72
24
Strength to Weight: Axial, points 38
26
Strength to Weight: Bending, points 50
23
Thermal Diffusivity, mm2/s 40
3.2
Thermal Shock Resistance, points 13
17

Alloy Composition


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Aluminum (Al), % 3.5 to 5.0
0
Carbon (C), % 0
0 to 0.020
Chromium (Cr), % 0
19 to 21
Copper (Cu), % 0 to 0.010
0.5 to 1.5
Iron (Fe), % 0 to 0.0050
42.7 to 50.4
Magnesium (Mg), % 92.5 to 95.9
0
Manganese (Mn), % 0.1 to 0.7
0 to 1.0
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 0 to 0.0020
24 to 26
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0.5 to 1.5
0 to 0.5
Sulfur (S), % 0
0 to 0.010
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.010
0