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AM60A Magnesium vs. S64512 Stainless Steel

AM60A magnesium belongs to the magnesium alloys classification, while S64512 stainless steel belongs to the iron alloys. There are 31 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 AM60A magnesium and the bottom bar is S64512 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 62
330
Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 8.8
17
Fatigue Strength, MPa 70
540
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
76
Shear Strength, MPa 130
700
Tensile Strength: Ultimate (UTS), MPa 230
1140
Tensile Strength: Yield (Proof), MPa 130
890

Thermal Properties

Latent Heat of Fusion, J/g 350
270
Maximum Temperature: Mechanical, °C 120
750
Melting Completion (Liquidus), °C 620
1460
Melting Onset (Solidus), °C 550
1420
Specific Heat Capacity, J/kg-K 1000
470
Thermal Conductivity, W/m-K 62
28
Thermal Expansion, µm/m-K 26
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 69
4.1

Otherwise Unclassified Properties

Base Metal Price, % relative 12
10
Density, g/cm3 1.7
7.8
Embodied Carbon, kg CO2/kg material 23
3.3
Embodied Energy, MJ/kg 160
47
Embodied Water, L/kg 990
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17
180
Resilience: Unit (Modulus of Resilience), kJ/m3 190
2020
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 71
25
Strength to Weight: Axial, points 37
40
Strength to Weight: Bending, points 49
31
Thermal Diffusivity, mm2/s 37
7.5
Thermal Shock Resistance, points 14
42

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0
0.080 to 0.15
Chromium (Cr), % 0
11 to 12.5
Copper (Cu), % 0 to 0.35
0
Iron (Fe), % 0
80.6 to 84.7
Magnesium (Mg), % 91.8 to 94.4
0
Manganese (Mn), % 0.13 to 0.6
0.5 to 0.9
Molybdenum (Mo), % 0
1.5 to 2.0
Nickel (Ni), % 0 to 0.030
2.0 to 3.0
Nitrogen (N), % 0
0.010 to 0.050
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.35
Sulfur (S), % 0
0 to 0.025
Vanadium (V), % 0
0.25 to 0.4
Zinc (Zn), % 0 to 0.22
0