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3004 Aluminum vs. S31060 Stainless Steel

3004 aluminum belongs to the aluminum alloys classification, while S31060 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (4, 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 3004 aluminum and the bottom bar is S31060 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 45 to 83
190
Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 1.1 to 19
46
Fatigue Strength, MPa 55 to 120
290
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 26
78
Shear Strength, MPa 100 to 180
480
Tensile Strength: Ultimate (UTS), MPa 170 to 310
680
Tensile Strength: Yield (Proof), MPa 68 to 270
310

Thermal Properties

Latent Heat of Fusion, J/g 400
290
Maximum Temperature: Mechanical, °C 180
1080
Melting Completion (Liquidus), °C 650
1420
Melting Onset (Solidus), °C 630
1370
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 160
15
Thermal Expansion, µm/m-K 24
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
18
Density, g/cm3 2.8
7.8
Embodied Carbon, kg CO2/kg material 8.3
3.4
Embodied Energy, MJ/kg 150
48
Embodied Water, L/kg 1180
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.2 to 27
260
Resilience: Unit (Modulus of Resilience), kJ/m3 33 to 540
250
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 18 to 31
24
Strength to Weight: Bending, points 25 to 37
22
Thermal Diffusivity, mm2/s 65
4.0
Thermal Shock Resistance, points 7.6 to 13
15

Alloy Composition

Aluminum (Al), % 95.6 to 98.2
0
Boron (B), % 0
0.0010 to 0.010
Carbon (C), % 0
0.050 to 0.1
Cerium (Ce), % 0
0 to 0.070
Chromium (Cr), % 0
22 to 24
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 0 to 0.7
61.4 to 67.8
Lanthanum (La), % 0
0 to 0.070
Magnesium (Mg), % 0.8 to 1.3
0
Manganese (Mn), % 1.0 to 1.5
0 to 1.0
Nickel (Ni), % 0
10 to 12.5
Nitrogen (N), % 0
0.18 to 0.25
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.3
0 to 0.5
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0