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EN 1.4658 Stainless Steel vs. EN AC-46600 Aluminum

EN 1.4658 stainless steel belongs to the iron alloys classification, while EN AC-46600 aluminum belongs to the aluminum alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, 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 1.4658 stainless steel and the bottom bar is EN AC-46600 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
77
Elastic (Young's, Tensile) Modulus, GPa 210
72
Elongation at Break, % 28
1.1
Fatigue Strength, MPa 530
75
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 81
27
Tensile Strength: Ultimate (UTS), MPa 900
180
Tensile Strength: Yield (Proof), MPa 730
110

Thermal Properties

Latent Heat of Fusion, J/g 300
490
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1450
620
Melting Onset (Solidus), °C 1400
560
Specific Heat Capacity, J/kg-K 470
890
Thermal Conductivity, W/m-K 16
130
Thermal Expansion, µm/m-K 13
22

Otherwise Unclassified Properties

Base Metal Price, % relative 25
10
Density, g/cm3 7.8
2.8
Embodied Carbon, kg CO2/kg material 4.5
7.8
Embodied Energy, MJ/kg 61
150
Embodied Water, L/kg 200
1080

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
1.7
Resilience: Unit (Modulus of Resilience), kJ/m3 1280
81
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 32
18
Strength to Weight: Bending, points 26
25
Thermal Diffusivity, mm2/s 4.3
51
Thermal Shock Resistance, points 24
8.1

Alloy Composition

Aluminum (Al), % 0
85.6 to 92.4
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 26 to 29
0
Cobalt (Co), % 0.5 to 2.0
0
Copper (Cu), % 0 to 1.0
1.5 to 2.5
Iron (Fe), % 50.9 to 63.7
0 to 0.8
Lead (Pb), % 0
0 to 0.25
Magnesium (Mg), % 0
0 to 0.35
Manganese (Mn), % 0 to 1.5
0.15 to 0.65
Molybdenum (Mo), % 4.0 to 5.0
0
Nickel (Ni), % 5.5 to 9.5
0 to 0.35
Nitrogen (N), % 0.3 to 0.5
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 0.5
6.0 to 8.0
Sulfur (S), % 0 to 0.010
0
Tin (Sn), % 0
0 to 0.15
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.15