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6360 Aluminum vs. ASTM A387 Grade 12 Steel

6360 aluminum belongs to the aluminum alloys classification, while ASTM A387 grade 12 steel belongs to the iron 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 6360 aluminum and the bottom bar is ASTM A387 grade 12 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 9.0 to 18
25
Fatigue Strength, MPa 31 to 67
190 to 230
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Shear Strength, MPa 76 to 130
300 to 330
Tensile Strength: Ultimate (UTS), MPa 120 to 220
470 to 520
Tensile Strength: Yield (Proof), MPa 57 to 170
260 to 310

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Maximum Temperature: Mechanical, °C 160
430
Melting Completion (Liquidus), °C 640
1470
Melting Onset (Solidus), °C 630
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 210
44
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 54
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 180
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.8
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.3
1.6
Embodied Energy, MJ/kg 150
21
Embodied Water, L/kg 1190
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14 to 19
98 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 24 to 210
180 to 250
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 13 to 23
16 to 18
Strength to Weight: Bending, points 20 to 30
17 to 18
Thermal Diffusivity, mm2/s 86
12
Thermal Shock Resistance, points 5.5 to 9.9
14 to 15

Alloy Composition

Aluminum (Al), % 97.8 to 99.3
0
Carbon (C), % 0
0.050 to 0.17
Chromium (Cr), % 0 to 0.050
0.8 to 1.2
Copper (Cu), % 0 to 0.15
0
Iron (Fe), % 0.1 to 0.3
97 to 98.2
Magnesium (Mg), % 0.25 to 0.45
0
Manganese (Mn), % 0.020 to 0.15
0.4 to 0.65
Molybdenum (Mo), % 0
0.45 to 0.6
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0.35 to 0.8
0.15 to 0.4
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0