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EN-MC21320 Magnesium vs. EN 1.4466 Stainless Steel

EN-MC21320 magnesium belongs to the magnesium alloys classification, while EN 1.4466 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 1.4466 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 68
210
Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 7.5
42
Fatigue Strength, MPa 95
250
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
80
Shear Strength, MPa 130
440
Tensile Strength: Ultimate (UTS), MPa 230
640
Tensile Strength: Yield (Proof), MPa 140
280

Thermal Properties

Latent Heat of Fusion, J/g 370
300
Maximum Temperature: Mechanical, °C 110
1100
Melting Completion (Liquidus), °C 600
1420
Melting Onset (Solidus), °C 530
1380
Specific Heat Capacity, J/kg-K 1000
470
Thermal Conductivity, W/m-K 66
14
Thermal Expansion, µm/m-K 26
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 91
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 12
28
Density, g/cm3 1.6
7.9
Embodied Carbon, kg CO2/kg material 23
5.0
Embodied Energy, MJ/kg 160
70
Embodied Water, L/kg 980
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15
220
Resilience: Unit (Modulus of Resilience), kJ/m3 200
200
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 72
25
Strength to Weight: Axial, points 38
22
Strength to Weight: Bending, points 50
21
Thermal Diffusivity, mm2/s 40
3.7
Thermal Shock Resistance, points 13
14

Alloy Composition


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Aluminum (Al), % 3.5 to 5.0
0
Carbon (C), % 0
0 to 0.020
Chromium (Cr), % 0
24 to 26
Copper (Cu), % 0 to 0.010
0
Iron (Fe), % 0 to 0.0050
45.6 to 52.9
Magnesium (Mg), % 92.5 to 95.9
0
Manganese (Mn), % 0.1 to 0.7
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 2.5
Nickel (Ni), % 0 to 0.0020
21 to 23
Nitrogen (N), % 0
0.1 to 0.16
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0.5 to 1.5
0 to 0.7
Sulfur (S), % 0
0 to 0.010
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.010
0