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AISI W2 Steel vs. AZ92A Magnesium

AISI W2 steel belongs to the iron alloys classification, while AZ92A magnesium belongs to the magnesium alloys. There are 23 material properties with values for both materials. Properties with values for just one material (8, 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 AISI W2 steel and the bottom bar is AZ92A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
47
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
18
Tensile Strength: Ultimate (UTS), MPa 580 to 2400
170 to 270

Thermal Properties

Latent Heat of Fusion, J/g 250
350
Melting Completion (Liquidus), °C 1450
590
Melting Onset (Solidus), °C 1410
440
Specific Heat Capacity, J/kg-K 470
980
Thermal Conductivity, W/m-K 45
44 to 58
Thermal Expansion, µm/m-K 12
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
11 to 12
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
53 to 62

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
12
Density, g/cm3 7.8
1.8
Embodied Carbon, kg CO2/kg material 2.0
22
Embodied Energy, MJ/kg 29
160
Embodied Water, L/kg 48
980

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
67
Strength to Weight: Axial, points 21 to 86
26 to 41
Strength to Weight: Bending, points 20 to 51
38 to 51
Thermal Diffusivity, mm2/s 12
25 to 33
Thermal Shock Resistance, points 19 to 80
10 to 16

Alloy Composition

Aluminum (Al), % 0
8.3 to 9.7
Carbon (C), % 0.85 to 1.5
0
Chromium (Cr), % 0 to 0.15
0
Copper (Cu), % 0 to 0.2
0 to 0.25
Iron (Fe), % 96.2 to 98.6
0
Magnesium (Mg), % 0
86.7 to 90
Manganese (Mn), % 0.35 to 0.74
0.1 to 0.35
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.2
0 to 0.010
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.1 to 0.4
0 to 0.3
Sulfur (S), % 0 to 0.025
0
Tungsten (W), % 0 to 0.15
0
Vanadium (V), % 0.15 to 0.35
0
Zinc (Zn), % 0
1.6 to 2.4
Residuals, % 0
0 to 0.3