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S45000 Stainless Steel vs. 3004 Aluminum

S45000 stainless steel belongs to the iron alloys classification, while 3004 aluminum belongs to the aluminum alloys. There are 31 material properties with values for both materials. Properties with values for just one material (5, 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 S45000 stainless steel and the bottom bar is 3004 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280 to 410
45 to 83
Elastic (Young's, Tensile) Modulus, GPa 200
70
Elongation at Break, % 6.8 to 14
1.1 to 19
Fatigue Strength, MPa 330 to 650
55 to 120
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
26
Shear Strength, MPa 590 to 830
100 to 180
Tensile Strength: Ultimate (UTS), MPa 980 to 1410
170 to 310
Tensile Strength: Yield (Proof), MPa 580 to 1310
68 to 270

Thermal Properties

Latent Heat of Fusion, J/g 280
400
Maximum Temperature: Mechanical, °C 840
180
Melting Completion (Liquidus), °C 1440
650
Melting Onset (Solidus), °C 1390
630
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 17
160
Thermal Expansion, µm/m-K 11
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
42
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
140

Otherwise Unclassified Properties

Base Metal Price, % relative 13
9.5
Density, g/cm3 7.8
2.8
Embodied Carbon, kg CO2/kg material 2.8
8.3
Embodied Energy, MJ/kg 39
150
Embodied Water, L/kg 130
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 94 to 160
3.2 to 27
Resilience: Unit (Modulus of Resilience), kJ/m3 850 to 4400
33 to 540
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 35 to 50
18 to 31
Strength to Weight: Bending, points 28 to 36
25 to 37
Thermal Diffusivity, mm2/s 4.5
65
Thermal Shock Resistance, points 33 to 47
7.6 to 13

Alloy Composition


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Aluminum (Al), % 0
95.6 to 98.2
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 14 to 16
0
Copper (Cu), % 1.3 to 1.8
0 to 0.25
Iron (Fe), % 72.1 to 79.3
0 to 0.7
Magnesium (Mg), % 0
0.8 to 1.3
Manganese (Mn), % 0 to 1.0
1.0 to 1.5
Molybdenum (Mo), % 0.5 to 1.0
0
Nickel (Ni), % 5.0 to 7.0
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.3
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15

Comparable Variants