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ASTM A182 Grade F12 Class 2 vs. A242.0 Aluminum

ASTM A182 grade F12 class 2 belongs to the iron alloys classification, while A242.0 aluminum belongs to the aluminum alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, 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 F12 class 2 and the bottom bar is A242.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
75
Elastic (Young's, Tensile) Modulus, GPa 190
73
Elongation at Break, % 22
1.6
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
27
Tensile Strength: Ultimate (UTS), MPa 540
220

Thermal Properties

Latent Heat of Fusion, J/g 250
390
Maximum Temperature: Mechanical, °C 430
210
Melting Completion (Liquidus), °C 1460
680
Melting Onset (Solidus), °C 1420
550
Specific Heat Capacity, J/kg-K 470
870
Thermal Conductivity, W/m-K 43
140
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
37
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
110

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
12
Density, g/cm3 7.8
3.1
Embodied Carbon, kg CO2/kg material 1.6
8.3
Embodied Energy, MJ/kg 21
150
Embodied Water, L/kg 52
1130

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
45
Strength to Weight: Axial, points 19
20
Strength to Weight: Bending, points 19
26
Thermal Diffusivity, mm2/s 12
52
Thermal Shock Resistance, points 16
9.3

Alloy Composition


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Aluminum (Al), % 0
89.3 to 93.1
Carbon (C), % 0.1 to 0.2
0
Chromium (Cr), % 0.8 to 1.3
0.15 to 0.25
Copper (Cu), % 0
3.7 to 4.5
Iron (Fe), % 96.4 to 98.3
0 to 0.8
Magnesium (Mg), % 0
1.2 to 1.7
Manganese (Mn), % 0.3 to 0.8
0 to 0.1
Molybdenum (Mo), % 0.44 to 0.65
0
Nickel (Ni), % 0
1.8 to 2.3
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0.1 to 0.6
0 to 0.6
Sulfur (S), % 0 to 0.040
0
Titanium (Ti), % 0
0.070 to 0.2
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15