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4047 Aluminum vs. EN 1.4005 Stainless Steel

4047 aluminum belongs to the aluminum alloys classification, while EN 1.4005 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 4047 aluminum and the bottom bar is EN 1.4005 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
190
Elongation at Break, % 3.4
13 to 21
Fatigue Strength, MPa 45
240 to 290
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
76
Shear Strength, MPa 69
390 to 450
Tensile Strength: Ultimate (UTS), MPa 120
630 to 750
Tensile Strength: Yield (Proof), MPa 64
370 to 500

Thermal Properties

Latent Heat of Fusion, J/g 570
270
Maximum Temperature: Mechanical, °C 160
760
Melting Completion (Liquidus), °C 580
1440
Melting Onset (Solidus), °C 580
1400
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 130
30
Thermal Expansion, µm/m-K 21
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 120
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
7.0
Density, g/cm3 2.5
7.7
Embodied Carbon, kg CO2/kg material 7.7
2.0
Embodied Energy, MJ/kg 140
28
Embodied Water, L/kg 1050
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.5
90 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 28
350 to 650
Stiffness to Weight: Axial, points 16
14
Stiffness to Weight: Bending, points 55
25
Strength to Weight: Axial, points 13
23 to 27
Strength to Weight: Bending, points 21
21 to 24
Thermal Diffusivity, mm2/s 59
8.1
Thermal Shock Resistance, points 5.6
23 to 27

Alloy Composition

Aluminum (Al), % 85.3 to 89
0
Carbon (C), % 0
0.060 to 0.15
Chromium (Cr), % 0
12 to 14
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 0 to 0.8
82.4 to 87.8
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.15
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.6
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 11 to 13
0 to 1.0
Sulfur (S), % 0
0.15 to 0.35
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0