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4147 Aluminum vs. EN 1.4347 Stainless Steel

4147 aluminum belongs to the aluminum alloys classification, while EN 1.4347 stainless steel belongs to the iron alloys. There are 29 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 4147 aluminum and the bottom bar is EN 1.4347 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
200
Elongation at Break, % 3.3
23
Fatigue Strength, MPa 42
320
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 27
79
Tensile Strength: Ultimate (UTS), MPa 110
660
Tensile Strength: Yield (Proof), MPa 59
480

Thermal Properties

Latent Heat of Fusion, J/g 570
300
Maximum Temperature: Mechanical, °C 160
1100
Melting Completion (Liquidus), °C 580
1410
Melting Onset (Solidus), °C 560
1370
Specific Heat Capacity, J/kg-K 900
490
Thermal Conductivity, W/m-K 130
15
Thermal Expansion, µm/m-K 21
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 120
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
16
Density, g/cm3 2.5
7.7
Embodied Carbon, kg CO2/kg material 7.7
3.1
Embodied Energy, MJ/kg 140
44
Embodied Water, L/kg 1050
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.1
140
Resilience: Unit (Modulus of Resilience), kJ/m3 24
570
Stiffness to Weight: Axial, points 16
15
Stiffness to Weight: Bending, points 55
25
Strength to Weight: Axial, points 12
24
Strength to Weight: Bending, points 20
22
Thermal Diffusivity, mm2/s 58
4.0
Thermal Shock Resistance, points 5.2
19

Alloy Composition

Aluminum (Al), % 85 to 88.9
0
Beryllium (Be), % 0 to 0.00030
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
25 to 27
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 0 to 0.8
62.2 to 69.4
Magnesium (Mg), % 0.1 to 0.5
0
Manganese (Mn), % 0 to 0.1
0 to 1.5
Nickel (Ni), % 0
5.5 to 7.5
Nitrogen (N), % 0
0.1 to 0.2
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 11 to 13
0 to 1.5
Sulfur (S), % 0
0 to 0.020
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0