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ASTM A182 Grade F92 vs. AZ91B Magnesium

ASTM A182 grade F92 belongs to the iron alloys classification, while AZ91B magnesium belongs to the magnesium alloys. There are 31 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 F92 and the bottom bar is AZ91B magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
63
Elastic (Young's, Tensile) Modulus, GPa 190
46
Elongation at Break, % 22
5.0
Fatigue Strength, MPa 360
79
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
18
Shear Strength, MPa 440
140
Tensile Strength: Ultimate (UTS), MPa 690
240
Tensile Strength: Yield (Proof), MPa 500
160

Thermal Properties

Latent Heat of Fusion, J/g 260
360
Maximum Temperature: Mechanical, °C 590
130
Melting Completion (Liquidus), °C 1490
600
Melting Onset (Solidus), °C 1450
470
Specific Heat Capacity, J/kg-K 470
990
Thermal Conductivity, W/m-K 26
73
Thermal Expansion, µm/m-K 13
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.3
11
Electrical Conductivity: Equal Weight (Specific), % IACS 10
58

Otherwise Unclassified Properties

Base Metal Price, % relative 11
12
Density, g/cm3 7.9
1.7
Embodied Carbon, kg CO2/kg material 2.8
22
Embodied Energy, MJ/kg 40
160
Embodied Water, L/kg 89
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
11
Resilience: Unit (Modulus of Resilience), kJ/m3 650
280
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
69
Strength to Weight: Axial, points 24
38
Strength to Weight: Bending, points 22
49
Thermal Diffusivity, mm2/s 6.9
42
Thermal Shock Resistance, points 19
14

Alloy Composition

Aluminum (Al), % 0 to 0.020
8.3 to 9.7
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 0.35
Iron (Fe), % 85.8 to 89.1
0
Magnesium (Mg), % 0
87.9 to 91.2
Manganese (Mn), % 0.3 to 0.6
0.13 to 0.5
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 0.5
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
0.35 to 1.0
Zirconium (Zr), % 0 to 0.010
0