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AM60B Magnesium vs. SAE-AISI H14 Steel

AM60B magnesium belongs to the magnesium alloys classification, while SAE-AISI H14 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, 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 H14 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
75
Tensile Strength: Ultimate (UTS), MPa 230
710 to 2030

Thermal Properties

Latent Heat of Fusion, J/g 350
270
Melting Completion (Liquidus), °C 620
1530
Melting Onset (Solidus), °C 540
1490
Specific Heat Capacity, J/kg-K 1000
460
Thermal Conductivity, W/m-K 61
35
Thermal Expansion, µm/m-K 26
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
9.3
Electrical Conductivity: Equal Weight (Specific), % IACS 72
10

Otherwise Unclassified Properties

Base Metal Price, % relative 12
15
Density, g/cm3 1.7
8.1
Embodied Carbon, kg CO2/kg material 23
2.7
Embodied Energy, MJ/kg 160
39
Embodied Water, L/kg 990
73

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 71
24
Strength to Weight: Axial, points 38
24 to 69
Strength to Weight: Bending, points 50
22 to 44
Thermal Diffusivity, mm2/s 37
9.3
Thermal Shock Resistance, points 14
24 to 68

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0
0.35 to 0.45
Chromium (Cr), % 0
4.8 to 5.5
Copper (Cu), % 0 to 0.010
0 to 0.25
Iron (Fe), % 0 to 0.0050
86.5 to 89.9
Magnesium (Mg), % 92.6 to 94.3
0
Manganese (Mn), % 0.24 to 0.6
0.2 to 0.5
Nickel (Ni), % 0 to 0.0020
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.1
0.8 to 1.2
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 0
4.0 to 5.3
Zinc (Zn), % 0 to 0.22
0