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AM60B Magnesium vs. SAE-AISI 1018 Steel

AM60B magnesium belongs to the magnesium alloys classification, while SAE-AISI 1018 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 AM60B magnesium and the bottom bar is SAE-AISI 1018 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 62
130 to 140
Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 11
17 to 27
Fatigue Strength, MPa 96
180 to 270
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
73
Shear Strength, MPa 140
280 to 300
Tensile Strength: Ultimate (UTS), MPa 230
430 to 480
Tensile Strength: Yield (Proof), MPa 130
240 to 400

Thermal Properties

Latent Heat of Fusion, J/g 350
250
Maximum Temperature: Mechanical, °C 120
400
Melting Completion (Liquidus), °C 620
1460
Melting Onset (Solidus), °C 540
1420
Specific Heat Capacity, J/kg-K 1000
470
Thermal Conductivity, W/m-K 61
52
Thermal Expansion, µm/m-K 26
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 72
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 12
1.8
Density, g/cm3 1.7
7.9
Embodied Carbon, kg CO2/kg material 23
1.4
Embodied Energy, MJ/kg 160
18
Embodied Water, L/kg 990
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
75 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 190
150 to 430
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 71
24
Strength to Weight: Axial, points 38
15 to 17
Strength to Weight: Bending, points 50
16 to 17
Thermal Diffusivity, mm2/s 37
14
Thermal Shock Resistance, points 14
14 to 15

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0
0.15 to 0.2
Copper (Cu), % 0 to 0.010
0
Iron (Fe), % 0 to 0.0050
98.8 to 99.25
Magnesium (Mg), % 92.6 to 94.3
0
Manganese (Mn), % 0.24 to 0.6
0.6 to 0.9
Nickel (Ni), % 0 to 0.0020
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.22
0