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EN 1.4959 Stainless Steel vs. EN AC-46600 Aluminum

EN 1.4959 stainless steel belongs to the iron alloys classification, while EN AC-46600 aluminum belongs to the aluminum alloys. There are 29 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 1.4959 stainless steel and the bottom bar is EN AC-46600 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
72
Elongation at Break, % 40
1.1
Fatigue Strength, MPa 170
75
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
27
Tensile Strength: Ultimate (UTS), MPa 630
180
Tensile Strength: Yield (Proof), MPa 190
110

Thermal Properties

Latent Heat of Fusion, J/g 300
490
Maximum Temperature: Mechanical, °C 1090
170
Melting Completion (Liquidus), °C 1400
620
Melting Onset (Solidus), °C 1350
560
Specific Heat Capacity, J/kg-K 480
890
Thermal Conductivity, W/m-K 12
130
Thermal Expansion, µm/m-K 15
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
29
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
94

Otherwise Unclassified Properties

Base Metal Price, % relative 31
10
Density, g/cm3 8.0
2.8
Embodied Carbon, kg CO2/kg material 5.4
7.8
Embodied Energy, MJ/kg 76
150
Embodied Water, L/kg 200
1080

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
1.7
Resilience: Unit (Modulus of Resilience), kJ/m3 96
81
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 22
18
Strength to Weight: Bending, points 20
25
Thermal Diffusivity, mm2/s 3.2
51
Thermal Shock Resistance, points 15
8.1

Alloy Composition

Aluminum (Al), % 0.25 to 0.65
85.6 to 92.4
Carbon (C), % 0.050 to 0.1
0
Chromium (Cr), % 19 to 22
0
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 0 to 0.5
1.5 to 2.5
Iron (Fe), % 39.4 to 50.5
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
Nickel (Ni), % 30 to 34
0 to 0.35
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0 to 0.7
6.0 to 8.0
Sulfur (S), % 0 to 0.010
0
Tin (Sn), % 0
0 to 0.15
Titanium (Ti), % 0.25 to 0.65
0 to 0.25
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.15