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EN-MC65220 Magnesium vs. S30615 Stainless Steel

EN-MC65220 magnesium belongs to the magnesium alloys classification, while S30615 stainless steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, 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 S30615 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
39
Fatigue Strength, MPa 110
270
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
75
Shear Strength, MPa 150
470
Tensile Strength: Ultimate (UTS), MPa 270
690
Tensile Strength: Yield (Proof), MPa 200
310

Thermal Properties

Latent Heat of Fusion, J/g 340
340
Maximum Temperature: Mechanical, °C 160
960
Melting Completion (Liquidus), °C 610
1370
Melting Onset (Solidus), °C 550
1320
Specific Heat Capacity, J/kg-K 980
500
Thermal Conductivity, W/m-K 110
14
Thermal Expansion, µm/m-K 26
16

Otherwise Unclassified Properties

Base Metal Price, % relative 80
19
Density, g/cm3 1.9
7.6
Embodied Carbon, kg CO2/kg material 27
3.7
Embodied Energy, MJ/kg 210
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
220
Resilience: Unit (Modulus of Resilience), kJ/m3 450
260
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 62
25
Strength to Weight: Axial, points 40
25
Strength to Weight: Bending, points 49
23
Thermal Diffusivity, mm2/s 61
3.7
Thermal Shock Resistance, points 17
16

Alloy Composition


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Aluminum (Al), % 0
0.8 to 1.5
Carbon (C), % 0
0.16 to 0.24
Chromium (Cr), % 0
17 to 19.5
Copper (Cu), % 0.050 to 0.1
0
Iron (Fe), % 0 to 0.010
56.7 to 65.3
Magnesium (Mg), % 93.8 to 96.8
0
Manganese (Mn), % 0 to 0.15
0 to 2.0
Nickel (Ni), % 0 to 0.0050
13.5 to 16
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.010
3.2 to 4.0
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