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EN-MC65220 Magnesium vs. EN 1.4857 Stainless Steel

EN-MC65220 magnesium belongs to the magnesium alloys classification, while EN 1.4857 stainless steel belongs to the iron alloys. There are 29 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 1.4857 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
150
Elastic (Young's, Tensile) Modulus, GPa 44
200
Elongation at Break, % 2.2
6.7
Fatigue Strength, MPa 110
120
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
78
Tensile Strength: Ultimate (UTS), MPa 270
500
Tensile Strength: Yield (Proof), MPa 200
250

Thermal Properties

Latent Heat of Fusion, J/g 340
330
Maximum Temperature: Mechanical, °C 160
1100
Melting Completion (Liquidus), °C 610
1370
Melting Onset (Solidus), °C 550
1320
Specific Heat Capacity, J/kg-K 980
480
Thermal Conductivity, W/m-K 110
13
Thermal Expansion, µm/m-K 26
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 120
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 80
34
Density, g/cm3 1.9
7.9
Embodied Carbon, kg CO2/kg material 27
5.7
Embodied Energy, MJ/kg 210
81

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
28
Resilience: Unit (Modulus of Resilience), kJ/m3 450
150
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 62
25
Strength to Weight: Axial, points 40
18
Strength to Weight: Bending, points 49
18
Thermal Diffusivity, mm2/s 61
3.4
Thermal Shock Resistance, points 17
11

Alloy Composition


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Carbon (C), % 0
0.3 to 0.5
Chromium (Cr), % 0
24 to 27
Copper (Cu), % 0.050 to 0.1
0
Iron (Fe), % 0 to 0.010
31.4 to 41.7
Magnesium (Mg), % 93.8 to 96.8
0
Manganese (Mn), % 0 to 0.15
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.0050
33 to 36
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.010
1.0 to 2.5
Silver (Ag), % 1.3 to 1.7
0
Sulfur (S), % 0
0 to 0.030
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