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ASTM A182 Grade F122 vs. AZ92A Magnesium

ASTM A182 grade F122 belongs to the iron alloys classification, while AZ92A magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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 ASTM A182 grade F122 and the bottom bar is AZ92A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
47
Elongation at Break, % 23
2.1 to 6.8
Fatigue Strength, MPa 320
76 to 90
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
18
Shear Strength, MPa 450
97 to 160
Tensile Strength: Ultimate (UTS), MPa 710
170 to 270
Tensile Strength: Yield (Proof), MPa 450
83 to 140

Thermal Properties

Latent Heat of Fusion, J/g 270
350
Maximum Temperature: Mechanical, °C 600
130
Melting Completion (Liquidus), °C 1490
590
Melting Onset (Solidus), °C 1440
440
Specific Heat Capacity, J/kg-K 470
980
Thermal Conductivity, W/m-K 24
44 to 58
Thermal Expansion, µm/m-K 13
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
11 to 12
Electrical Conductivity: Equal Weight (Specific), % IACS 12
53 to 62

Otherwise Unclassified Properties

Base Metal Price, % relative 12
12
Density, g/cm3 8.0
1.8
Embodied Carbon, kg CO2/kg material 3.0
22
Embodied Energy, MJ/kg 44
160
Embodied Water, L/kg 100
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
4.0 to 14
Resilience: Unit (Modulus of Resilience), kJ/m3 520
73 to 220
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
67
Strength to Weight: Axial, points 25
26 to 41
Strength to Weight: Bending, points 22
38 to 51
Thermal Diffusivity, mm2/s 6.4
25 to 33
Thermal Shock Resistance, points 19
10 to 16

Alloy Composition

Aluminum (Al), % 0 to 0.020
8.3 to 9.7
Boron (B), % 0 to 0.0050
0
Carbon (C), % 0.070 to 0.14
0
Chromium (Cr), % 10 to 11.5
0
Copper (Cu), % 0.3 to 1.7
0 to 0.25
Iron (Fe), % 81.3 to 87.7
0
Magnesium (Mg), % 0
86.7 to 90
Manganese (Mn), % 0 to 0.7
0.1 to 0.35
Molybdenum (Mo), % 0.25 to 0.6
0
Nickel (Ni), % 0 to 0.5
0 to 0.010
Niobium (Nb), % 0.040 to 0.1
0
Nitrogen (N), % 0.040 to 0.1
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.5
0 to 0.3
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 1.5 to 2.5
0
Vanadium (V), % 0.15 to 0.3
0
Zinc (Zn), % 0
1.6 to 2.4
Zirconium (Zr), % 0 to 0.010
0
Residuals, % 0
0 to 0.3