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AM60A Magnesium vs. SAE-AISI 1080 Steel

AM60A magnesium belongs to the magnesium alloys classification, while SAE-AISI 1080 steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (1, 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 SAE-AISI 1080 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 62
220 to 260
Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 8.8
11
Fatigue Strength, MPa 70
300 to 360
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
72
Shear Strength, MPa 130
460 to 520
Tensile Strength: Ultimate (UTS), MPa 230
770 to 870
Tensile Strength: Yield (Proof), MPa 130
480 to 590

Thermal Properties

Latent Heat of Fusion, J/g 350
250
Maximum Temperature: Mechanical, °C 120
400
Melting Completion (Liquidus), °C 620
1450
Melting Onset (Solidus), °C 550
1410
Specific Heat Capacity, J/kg-K 1000
470
Thermal Conductivity, W/m-K 62
51
Thermal Expansion, µm/m-K 26
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
9.6
Electrical Conductivity: Equal Weight (Specific), % IACS 69
11

Otherwise Unclassified Properties

Base Metal Price, % relative 12
1.8
Density, g/cm3 1.7
7.8
Embodied Carbon, kg CO2/kg material 23
1.4
Embodied Energy, MJ/kg 160
19
Embodied Water, L/kg 990
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17
80 to 84
Resilience: Unit (Modulus of Resilience), kJ/m3 190
610 to 920
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 71
24
Strength to Weight: Axial, points 37
27 to 31
Strength to Weight: Bending, points 49
24 to 26
Thermal Diffusivity, mm2/s 37
14
Thermal Shock Resistance, points 14
25 to 29

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0
0.75 to 0.88
Copper (Cu), % 0 to 0.35
0
Iron (Fe), % 0
98.1 to 98.7
Magnesium (Mg), % 91.8 to 94.4
0
Manganese (Mn), % 0.13 to 0.6
0.6 to 0.9
Nickel (Ni), % 0 to 0.030
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.22
0