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ASTM A182 Grade F5a vs. AZ31C Magnesium

ASTM A182 grade F5a belongs to the iron alloys classification, while AZ31C magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 F5a and the bottom bar is AZ31C magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
45
Elongation at Break, % 25
12
Fatigue Strength, MPa 380
150
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
17
Shear Strength, MPa 450
130
Tensile Strength: Ultimate (UTS), MPa 710
260
Tensile Strength: Yield (Proof), MPa 520
200

Thermal Properties

Latent Heat of Fusion, J/g 260
350
Maximum Temperature: Mechanical, °C 510
110
Melting Completion (Liquidus), °C 1460
600
Melting Onset (Solidus), °C 1420
550
Specific Heat Capacity, J/kg-K 470
990
Thermal Conductivity, W/m-K 40
130
Thermal Expansion, µm/m-K 13
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.2
19
Electrical Conductivity: Equal Weight (Specific), % IACS 9.4
98

Otherwise Unclassified Properties

Base Metal Price, % relative 4.5
12
Density, g/cm3 7.8
1.7
Embodied Carbon, kg CO2/kg material 1.8
23
Embodied Energy, MJ/kg 24
160
Embodied Water, L/kg 69
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
28
Resilience: Unit (Modulus of Resilience), kJ/m3 700
440
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
70
Strength to Weight: Axial, points 25
42
Strength to Weight: Bending, points 23
53
Thermal Diffusivity, mm2/s 11
74
Thermal Shock Resistance, points 20
16

Alloy Composition

Aluminum (Al), % 0
2.4 to 3.6
Carbon (C), % 0 to 0.25
0
Chromium (Cr), % 4.0 to 6.0
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 91.4 to 95.6
0
Magnesium (Mg), % 0
93.4 to 97
Manganese (Mn), % 0 to 0.6
0.15 to 1.0
Molybdenum (Mo), % 0.44 to 0.65
0
Nickel (Ni), % 0 to 0.5
0 to 0.030
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.5
0 to 0.1
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
0.5 to 1.5
Residuals, % 0
0 to 0.3