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1350 Aluminum vs. ASTM A387 Grade 9 Steel

1350 aluminum belongs to the aluminum alloys classification, while ASTM A387 grade 9 steel 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 1350 aluminum and the bottom bar is ASTM A387 grade 9 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 20 to 45
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 1.4 to 30
20 to 21
Fatigue Strength, MPa 24 to 50
160 to 240
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
75
Shear Strength, MPa 44 to 110
310 to 380
Tensile Strength: Ultimate (UTS), MPa 68 to 190
500 to 600
Tensile Strength: Yield (Proof), MPa 25 to 170
230 to 350

Thermal Properties

Latent Heat of Fusion, J/g 400
270
Maximum Temperature: Mechanical, °C 170
600
Melting Completion (Liquidus), °C 660
1460
Melting Onset (Solidus), °C 650
1410
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 230
26
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 61 to 62
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 200 to 210
10

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
6.5
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.3
2.1
Embodied Energy, MJ/kg 160
28
Embodied Water, L/kg 1200
87

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 0.77 to 54
83 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 4.4 to 200
140 to 310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 7.0 to 19
18 to 21
Strength to Weight: Bending, points 14 to 27
18 to 20
Thermal Diffusivity, mm2/s 96
6.9
Thermal Shock Resistance, points 3.0 to 8.2
14 to 17

Alloy Composition

Aluminum (Al), % 99.5 to 100
0
Boron (B), % 0 to 0.050
0
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0 to 0.010
8.0 to 10
Copper (Cu), % 0 to 0.050
0
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.4
87.1 to 90.8
Manganese (Mn), % 0 to 0.010
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0 to 0.020
0
Vanadium (V), % 0 to 0.020
0 to 0.040
Zinc (Zn), % 0 to 0.050
0
Residuals, % 0 to 0.1
0

Comparable Variants