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4147 Aluminum vs. EN 1.4865 Stainless Steel

4147 aluminum belongs to the aluminum alloys classification, while EN 1.4865 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 1.4865 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
200
Elongation at Break, % 3.3
6.8
Fatigue Strength, MPa 42
120
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
76
Tensile Strength: Ultimate (UTS), MPa 110
470
Tensile Strength: Yield (Proof), MPa 59
250

Thermal Properties

Latent Heat of Fusion, J/g 570
320
Maximum Temperature: Mechanical, °C 160
1020
Melting Completion (Liquidus), °C 580
1380
Melting Onset (Solidus), °C 560
1330
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 130
12
Thermal Expansion, µm/m-K 21
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 120
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
33
Density, g/cm3 2.5
8.0
Embodied Carbon, kg CO2/kg material 7.7
5.8
Embodied Energy, MJ/kg 140
81
Embodied Water, L/kg 1050
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.1
27
Resilience: Unit (Modulus of Resilience), kJ/m3 24
160
Stiffness to Weight: Axial, points 16
14
Stiffness to Weight: Bending, points 55
24
Strength to Weight: Axial, points 12
16
Strength to Weight: Bending, points 20
17
Thermal Diffusivity, mm2/s 58
3.1
Thermal Shock Resistance, points 5.2
11

Alloy Composition

Aluminum (Al), % 85 to 88.9
0
Beryllium (Be), % 0 to 0.00030
0
Carbon (C), % 0
0.3 to 0.5
Chromium (Cr), % 0
18 to 21
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 0 to 0.8
34.4 to 44.7
Magnesium (Mg), % 0.1 to 0.5
0
Manganese (Mn), % 0 to 0.1
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
36 to 39
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 11 to 13
1.0 to 2.5
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0