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3105-O Aluminum vs. ASTM A387 Grade 2 Class 1

3105-O aluminum belongs to the aluminum alloys classification, while ASTM A387 grade 2 class 1 belongs to the iron alloys. There are 31 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 3105-O aluminum and the bottom bar is ASTM A387 grade 2 class 1.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 29
140
Elastic (Young's, Tensile) Modulus, GPa 69
190
Elongation at Break, % 20
25
Fatigue Strength, MPa 52
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Shear Strength, MPa 84
300
Tensile Strength: Ultimate (UTS), MPa 120
470
Tensile Strength: Yield (Proof), MPa 48
260

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Maximum Temperature: Mechanical, °C 180
420
Melting Completion (Liquidus), °C 660
1470
Melting Onset (Solidus), °C 640
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 170
45
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 140
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.6
Density, g/cm3 2.8
7.9
Embodied Carbon, kg CO2/kg material 8.2
1.6
Embodied Energy, MJ/kg 150
20
Embodied Water, L/kg 1180
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
98
Resilience: Unit (Modulus of Resilience), kJ/m3 16
180
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 12
16
Strength to Weight: Bending, points 20
17
Thermal Diffusivity, mm2/s 68
12
Thermal Shock Resistance, points 5.2
14

Alloy Composition

Aluminum (Al), % 96 to 99.5
0
Carbon (C), % 0
0.050 to 0.21
Chromium (Cr), % 0 to 0.2
0.5 to 0.8
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 0 to 0.7
97.1 to 98.3
Magnesium (Mg), % 0.2 to 0.8
0
Manganese (Mn), % 0.3 to 0.8
0.55 to 0.8
Molybdenum (Mo), % 0
0.45 to 0.6
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.6
0.15 to 0.4
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.4
0
Residuals, % 0 to 0.15
0