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ASTM A369 Grade FP92 vs. AZ31C Magnesium

ASTM A369 grade FP92 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 (2, 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 A369 grade FP92 and the bottom bar is AZ31C magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
45
Elongation at Break, % 19
12
Fatigue Strength, MPa 330
150
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
17
Shear Strength, MPa 440
130
Tensile Strength: Ultimate (UTS), MPa 710
260
Tensile Strength: Yield (Proof), MPa 490
200

Thermal Properties

Latent Heat of Fusion, J/g 260
350
Maximum Temperature: Mechanical, °C 590
110
Melting Completion (Liquidus), °C 1490
600
Melting Onset (Solidus), °C 1450
550
Specific Heat Capacity, J/kg-K 470
990
Thermal Conductivity, W/m-K 26
130
Thermal Expansion, µm/m-K 13
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.3
19
Electrical Conductivity: Equal Weight (Specific), % IACS 10
98

Otherwise Unclassified Properties

Base Metal Price, % relative 11
12
Density, g/cm3 7.9
1.7
Embodied Carbon, kg CO2/kg material 2.8
23
Embodied Energy, MJ/kg 40
160
Embodied Water, L/kg 89
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
28
Resilience: Unit (Modulus of Resilience), kJ/m3 620
440
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
70
Strength to Weight: Axial, points 25
42
Strength to Weight: Bending, points 22
53
Thermal Diffusivity, mm2/s 6.9
74
Thermal Shock Resistance, points 19
16

Alloy Composition

Aluminum (Al), % 0 to 0.020
2.4 to 3.6
Boron (B), % 0.0010 to 0.0060
0
Carbon (C), % 0.070 to 0.13
0
Chromium (Cr), % 8.5 to 9.5
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 85.8 to 89.1
0
Magnesium (Mg), % 0
93.4 to 97
Manganese (Mn), % 0.3 to 0.6
0.15 to 1.0
Molybdenum (Mo), % 0.3 to 0.6
0
Nickel (Ni), % 0 to 0.4
0 to 0.030
Niobium (Nb), % 0.040 to 0.090
0
Nitrogen (N), % 0.030 to 0.070
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.5
0 to 0.1
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 1.5 to 2.0
0
Vanadium (V), % 0.15 to 0.25
0
Zinc (Zn), % 0
0.5 to 1.5
Zirconium (Zr), % 0 to 0.010
0
Residuals, % 0
0 to 0.3