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EN 1.4658 Stainless Steel vs. EN AC-46100 Aluminum

EN 1.4658 stainless steel belongs to the iron alloys classification, while EN AC-46100 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-46100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
91
Elastic (Young's, Tensile) Modulus, GPa 210
73
Elongation at Break, % 28
1.0
Fatigue Strength, MPa 530
110
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 81
28
Tensile Strength: Ultimate (UTS), MPa 900
270
Tensile Strength: Yield (Proof), MPa 730
160

Thermal Properties

Latent Heat of Fusion, J/g 300
550
Maximum Temperature: Mechanical, °C 1100
180
Melting Completion (Liquidus), °C 1450
600
Melting Onset (Solidus), °C 1400
540
Specific Heat Capacity, J/kg-K 470
890
Thermal Conductivity, W/m-K 16
110
Thermal Expansion, µm/m-K 13
21

Otherwise Unclassified Properties

Base Metal Price, % relative 25
10
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 4.5
7.6
Embodied Energy, MJ/kg 61
140
Embodied Water, L/kg 200
1030

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
2.3
Resilience: Unit (Modulus of Resilience), kJ/m3 1280
170
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 25
51
Strength to Weight: Axial, points 32
27
Strength to Weight: Bending, points 26
34
Thermal Diffusivity, mm2/s 4.3
44
Thermal Shock Resistance, points 24
12

Alloy Composition

Aluminum (Al), % 0
80.4 to 88.5
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 26 to 29
0 to 0.15
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 1.1
Lead (Pb), % 0
0 to 0.25
Magnesium (Mg), % 0
0 to 0.3
Manganese (Mn), % 0 to 1.5
0 to 0.55
Molybdenum (Mo), % 4.0 to 5.0
0
Nickel (Ni), % 5.5 to 9.5
0 to 0.45
Nitrogen (N), % 0.3 to 0.5
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 0.5
10 to 12
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 1.7
Residuals, % 0
0 to 0.25