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3003 Aluminum vs. EN 1.4477 Stainless Steel

3003 aluminum belongs to the aluminum alloys classification, while EN 1.4477 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 3003 aluminum and the bottom bar is EN 1.4477 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 28 to 65
270
Elastic (Young's, Tensile) Modulus, GPa 70
210
Elongation at Break, % 1.1 to 28
22 to 23
Fatigue Strength, MPa 39 to 90
420 to 490
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 26
81
Shear Strength, MPa 68 to 130
550 to 580
Tensile Strength: Ultimate (UTS), MPa 110 to 240
880 to 930
Tensile Strength: Yield (Proof), MPa 40 to 210
620 to 730

Thermal Properties

Latent Heat of Fusion, J/g 400
300
Maximum Temperature: Mechanical, °C 180
1100
Melting Completion (Liquidus), °C 650
1430
Melting Onset (Solidus), °C 640
1380
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 180
13
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
20
Density, g/cm3 2.8
7.7
Embodied Carbon, kg CO2/kg material 8.1
3.7
Embodied Energy, MJ/kg 150
52
Embodied Water, L/kg 1180
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 0.95 to 63
180 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 11 to 300
940 to 1290
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 11 to 24
31 to 33
Strength to Weight: Bending, points 18 to 30
26 to 27
Thermal Diffusivity, mm2/s 71
3.5
Thermal Shock Resistance, points 4.7 to 10
23 to 25

Alloy Composition

Aluminum (Al), % 96.8 to 99
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
28 to 30
Copper (Cu), % 0.050 to 0.2
0 to 0.8
Iron (Fe), % 0 to 0.7
56.6 to 63.6
Manganese (Mn), % 1.0 to 1.5
0.8 to 1.5
Molybdenum (Mo), % 0
1.5 to 2.6
Nickel (Ni), % 0
5.8 to 7.5
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.6
0 to 0.5
Sulfur (S), % 0
0 to 0.015
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0