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EN-MC65220 Magnesium vs. S30601 Stainless Steel

EN-MC65220 magnesium belongs to the magnesium alloys classification, while S30601 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (8, 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 S30601 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
190
Elastic (Young's, Tensile) Modulus, GPa 44
190
Elongation at Break, % 2.2
37
Fatigue Strength, MPa 110
250
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
75
Shear Strength, MPa 150
450
Tensile Strength: Ultimate (UTS), MPa 270
660
Tensile Strength: Yield (Proof), MPa 200
300

Thermal Properties

Latent Heat of Fusion, J/g 340
370
Maximum Temperature: Mechanical, °C 160
950
Melting Completion (Liquidus), °C 610
1360
Melting Onset (Solidus), °C 550
1310
Specific Heat Capacity, J/kg-K 980
500
Thermal Expansion, µm/m-K 26
15

Otherwise Unclassified Properties

Base Metal Price, % relative 80
20
Density, g/cm3 1.9
7.6
Embodied Carbon, kg CO2/kg material 27
3.9
Embodied Energy, MJ/kg 210
55

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
200
Resilience: Unit (Modulus of Resilience), kJ/m3 450
230
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 62
25
Strength to Weight: Axial, points 40
24
Strength to Weight: Bending, points 49
22
Thermal Shock Resistance, points 17
16

Alloy Composition


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Carbon (C), % 0
0 to 0.015
Chromium (Cr), % 0
17 to 18
Copper (Cu), % 0.050 to 0.1
0 to 0.35
Iron (Fe), % 0 to 0.010
56.9 to 60.5
Magnesium (Mg), % 93.8 to 96.8
0
Manganese (Mn), % 0 to 0.15
0.5 to 0.8
Molybdenum (Mo), % 0
0 to 0.2
Nickel (Ni), % 0 to 0.0050
17 to 18
Nitrogen (N), % 0
0 to 0.050
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.010
5.0 to 5.6
Silver (Ag), % 1.3 to 1.7
0
Sulfur (S), % 0
0 to 0.013
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