MakeItFrom.com
Menu (ESC)

EN 1.4557 Stainless Steel vs. 4007 Aluminum

EN 1.4557 stainless steel belongs to the iron alloys classification, while 4007 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 1.4557 stainless steel and the bottom bar is 4007 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
32 to 44
Elastic (Young's, Tensile) Modulus, GPa 200
71
Elongation at Break, % 40
5.1 to 23
Fatigue Strength, MPa 260
46 to 88
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 80
27
Tensile Strength: Ultimate (UTS), MPa 560
130 to 160
Tensile Strength: Yield (Proof), MPa 300
50 to 120

Thermal Properties

Latent Heat of Fusion, J/g 300
410
Maximum Temperature: Mechanical, °C 1090
170
Melting Completion (Liquidus), °C 1460
650
Melting Onset (Solidus), °C 1420
590
Specific Heat Capacity, J/kg-K 460
890
Thermal Conductivity, W/m-K 15
170
Thermal Expansion, µm/m-K 17
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
42
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
140

Otherwise Unclassified Properties

Base Metal Price, % relative 29
9.5
Density, g/cm3 8.0
2.8
Embodied Carbon, kg CO2/kg material 5.6
8.1
Embodied Energy, MJ/kg 76
150
Embodied Water, L/kg 190
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
7.4 to 23
Resilience: Unit (Modulus of Resilience), kJ/m3 210
18 to 110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
49
Strength to Weight: Axial, points 19
12 to 15
Strength to Weight: Bending, points 19
20 to 23
Thermal Diffusivity, mm2/s 4.0
67
Thermal Shock Resistance, points 12
5.5 to 6.7

Alloy Composition

Aluminum (Al), % 0
94.1 to 97.6
Carbon (C), % 0 to 0.020
0
Chromium (Cr), % 19.5 to 20.5
0.050 to 0.25
Cobalt (Co), % 0
0 to 0.050
Copper (Cu), % 0.5 to 1.0
0 to 0.2
Iron (Fe), % 49.5 to 56.3
0.4 to 1.0
Magnesium (Mg), % 0
0 to 0.2
Manganese (Mn), % 0 to 1.2
0.8 to 1.5
Molybdenum (Mo), % 6.0 to 7.0
0
Nickel (Ni), % 17.5 to 19.5
0.15 to 0.7
Nitrogen (N), % 0.18 to 0.24
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 1.0
1.0 to 1.7
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15