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AM60A Magnesium vs. S32808 Stainless Steel

AM60A magnesium belongs to the magnesium alloys classification, while S32808 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 AM60A magnesium and the bottom bar is S32808 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 62
270
Elastic (Young's, Tensile) Modulus, GPa 45
210
Elongation at Break, % 8.8
17
Fatigue Strength, MPa 70
350
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 18
81
Shear Strength, MPa 130
480
Tensile Strength: Ultimate (UTS), MPa 230
780
Tensile Strength: Yield (Proof), MPa 130
570

Thermal Properties

Latent Heat of Fusion, J/g 350
300
Maximum Temperature: Mechanical, °C 120
1100
Melting Completion (Liquidus), °C 620
1470
Melting Onset (Solidus), °C 550
1420
Specific Heat Capacity, J/kg-K 1000
480
Thermal Conductivity, W/m-K 62
14
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 69
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 12
24
Density, g/cm3 1.7
7.9
Embodied Carbon, kg CO2/kg material 23
4.0
Embodied Energy, MJ/kg 160
57
Embodied Water, L/kg 990
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17
120
Resilience: Unit (Modulus of Resilience), kJ/m3 190
790
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 71
25
Strength to Weight: Axial, points 37
27
Strength to Weight: Bending, points 49
24
Thermal Diffusivity, mm2/s 37
3.8
Thermal Shock Resistance, points 14
21

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
27 to 27.9
Copper (Cu), % 0 to 0.35
0
Iron (Fe), % 0
58.1 to 62.8
Magnesium (Mg), % 91.8 to 94.4
0
Manganese (Mn), % 0.13 to 0.6
0 to 1.1
Molybdenum (Mo), % 0
0.8 to 1.2
Nickel (Ni), % 0 to 0.030
7.0 to 8.2
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0
0 to 0.010
Tungsten (W), % 0
2.1 to 2.5
Zinc (Zn), % 0 to 0.22
0