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EN-MC65220 Magnesium vs. EN 1.4618 Stainless Steel

EN-MC65220 magnesium belongs to the magnesium alloys classification, while EN 1.4618 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-MC65220 magnesium and the bottom bar is EN 1.4618 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
200 to 210
Elastic (Young's, Tensile) Modulus, GPa 44
200
Elongation at Break, % 2.2
51
Fatigue Strength, MPa 110
240 to 250
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
77
Shear Strength, MPa 150
480 to 500
Tensile Strength: Ultimate (UTS), MPa 270
680 to 700
Tensile Strength: Yield (Proof), MPa 200
250 to 260

Thermal Properties

Latent Heat of Fusion, J/g 340
280
Maximum Temperature: Mechanical, °C 160
900
Melting Completion (Liquidus), °C 610
1400
Melting Onset (Solidus), °C 550
1360
Specific Heat Capacity, J/kg-K 980
480
Thermal Conductivity, W/m-K 110
15
Thermal Expansion, µm/m-K 26
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 120
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 80
13
Density, g/cm3 1.9
7.7
Embodied Carbon, kg CO2/kg material 27
2.7
Embodied Energy, MJ/kg 210
39

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
270 to 280
Resilience: Unit (Modulus of Resilience), kJ/m3 450
160 to 170
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 62
25
Strength to Weight: Axial, points 40
24 to 25
Strength to Weight: Bending, points 49
22 to 23
Thermal Diffusivity, mm2/s 61
4.0
Thermal Shock Resistance, points 17
15 to 16

Alloy Composition


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Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
16.5 to 18.5
Copper (Cu), % 0.050 to 0.1
1.0 to 2.5
Iron (Fe), % 0 to 0.010
62.7 to 72.5
Magnesium (Mg), % 93.8 to 96.8
0
Manganese (Mn), % 0 to 0.15
5.5 to 9.5
Nickel (Ni), % 0 to 0.0050
4.5 to 5.5
Nitrogen (N), % 0
0 to 0.15
Phosphorus (P), % 0
0 to 0.070
Silicon (Si), % 0 to 0.010
0 to 1.0
Silver (Ag), % 1.3 to 1.7
0
Sulfur (S), % 0
0 to 0.010
Unspecified Rare Earths, % 1.5 to 3.0
0
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0