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AM60A Magnesium vs. Austempered Cast Iron

AM60A magnesium belongs to the magnesium alloys classification, while austempered cast iron belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (5, 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 austempered cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 62
270 to 490
Elastic (Young's, Tensile) Modulus, GPa 45
180
Elongation at Break, % 8.8
1.1 to 13
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
62 to 69
Tensile Strength: Ultimate (UTS), MPa 230
860 to 1800
Tensile Strength: Yield (Proof), MPa 130
560 to 1460

Thermal Properties

Latent Heat of Fusion, J/g 350
280
Melting Completion (Liquidus), °C 620
1380
Melting Onset (Solidus), °C 550
1340
Specific Heat Capacity, J/kg-K 1000
490
Thermal Conductivity, W/m-K 62
42
Thermal Expansion, µm/m-K 26
13

Otherwise Unclassified Properties

Base Metal Price, % relative 12
2.9
Density, g/cm3 1.7
7.5
Embodied Carbon, kg CO2/kg material 23
1.8
Embodied Energy, MJ/kg 160
25
Embodied Water, L/kg 990
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17
19 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 190
880 to 3970
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 71
25
Strength to Weight: Axial, points 37
32 to 66
Strength to Weight: Bending, points 49
27 to 44
Thermal Diffusivity, mm2/s 37
11
Thermal Shock Resistance, points 14
25 to 53

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0 to 0.050
Arsenic (As), % 0
0 to 0.020
Carbon (C), % 0
3.4 to 3.8
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0 to 0.35
0 to 0.8
Iron (Fe), % 0
89.6 to 94
Magnesium (Mg), % 91.8 to 94.4
0 to 0.040
Manganese (Mn), % 0.13 to 0.6
0.3 to 0.4
Molybdenum (Mo), % 0
0 to 0.3
Nickel (Ni), % 0 to 0.030
0 to 2.0
Phosphorus (P), % 0
0 to 0.040
Selenium (Se), % 0
0 to 0.030
Silicon (Si), % 0 to 0.5
2.3 to 2.7
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 0
0 to 0.020
Vanadium (V), % 0
0 to 0.1
Zinc (Zn), % 0 to 0.22
0