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EN 1.4570 Stainless Steel vs. 4147 Aluminum

EN 1.4570 stainless steel belongs to the iron alloys classification, while 4147 aluminum belongs to the aluminum alloys. There are 30 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 EN 1.4570 stainless steel and the bottom bar is 4147 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
72
Elongation at Break, % 40
3.3
Fatigue Strength, MPa 180
42
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
27
Shear Strength, MPa 410
63
Tensile Strength: Ultimate (UTS), MPa 610
110
Tensile Strength: Yield (Proof), MPa 210
59

Thermal Properties

Latent Heat of Fusion, J/g 290
570
Maximum Temperature: Mechanical, °C 930
160
Melting Completion (Liquidus), °C 1420
580
Melting Onset (Solidus), °C 1370
560
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 15
130
Thermal Expansion, µm/m-K 16
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
33
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
120

Otherwise Unclassified Properties

Base Metal Price, % relative 15
9.5
Density, g/cm3 7.8
2.5
Embodied Carbon, kg CO2/kg material 3.1
7.7
Embodied Energy, MJ/kg 43
140
Embodied Water, L/kg 150
1050

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
3.1
Resilience: Unit (Modulus of Resilience), kJ/m3 110
24
Stiffness to Weight: Axial, points 14
16
Stiffness to Weight: Bending, points 25
55
Strength to Weight: Axial, points 22
12
Strength to Weight: Bending, points 20
20
Thermal Diffusivity, mm2/s 4.0
58
Thermal Shock Resistance, points 14
5.2

Alloy Composition

Aluminum (Al), % 0
85 to 88.9
Beryllium (Be), % 0
0 to 0.00030
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 1.4 to 1.8
0 to 0.25
Iron (Fe), % 65 to 73.5
0 to 0.8
Magnesium (Mg), % 0
0.1 to 0.5
Manganese (Mn), % 0 to 2.0
0 to 0.1
Molybdenum (Mo), % 0 to 0.6
0
Nickel (Ni), % 8.0 to 10
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
11 to 13
Sulfur (S), % 0.15 to 0.35
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15