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3303 Aluminum vs. SAE-AISI 1095 Steel

3303 aluminum belongs to the aluminum alloys classification, while SAE-AISI 1095 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 3303 aluminum and the bottom bar is SAE-AISI 1095 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 23
10 to 11
Fatigue Strength, MPa 43
310 to 370
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
72
Shear Strength, MPa 69
400 to 540
Tensile Strength: Ultimate (UTS), MPa 110
680 to 900
Tensile Strength: Yield (Proof), MPa 39
500 to 590

Thermal Properties

Latent Heat of Fusion, J/g 400
240
Maximum Temperature: Mechanical, °C 180
400
Melting Completion (Liquidus), °C 650
1450
Melting Onset (Solidus), °C 620
1410
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 170
47
Thermal Expansion, µm/m-K 23
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 43
9.6
Electrical Conductivity: Equal Weight (Specific), % IACS 140
11

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
1.8
Density, g/cm3 2.8
7.8
Embodied Carbon, kg CO2/kg material 8.1
1.4
Embodied Energy, MJ/kg 150
19
Embodied Water, L/kg 1180
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
63 to 84
Resilience: Unit (Modulus of Resilience), kJ/m3 11
660 to 930
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
24
Strength to Weight: Axial, points 11
24 to 32
Strength to Weight: Bending, points 18
22 to 26
Thermal Diffusivity, mm2/s 67
13
Thermal Shock Resistance, points 4.8
22 to 29

Alloy Composition

Aluminum (Al), % 96.6 to 99
0
Carbon (C), % 0
0.9 to 1.0
Copper (Cu), % 0.050 to 0.2
0
Iron (Fe), % 0 to 0.7
98.4 to 98.8
Manganese (Mn), % 1.0 to 1.5
0.3 to 0.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.6
0
Sulfur (S), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0 to 0.15
0