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A535.0 Aluminum vs. EN 1.4318 Stainless Steel

A535.0 aluminum belongs to the aluminum alloys classification, while EN 1.4318 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, 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 A535.0 aluminum and the bottom bar is EN 1.4318 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
200
Elongation at Break, % 9.0
44
Fatigue Strength, MPa 95
340
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 25
77
Tensile Strength: Ultimate (UTS), MPa 250
740
Tensile Strength: Yield (Proof), MPa 120
380

Thermal Properties

Latent Heat of Fusion, J/g 390
290
Maximum Temperature: Mechanical, °C 170
910
Melting Completion (Liquidus), °C 620
1430
Melting Onset (Solidus), °C 550
1380
Specific Heat Capacity, J/kg-K 910
480
Thermal Conductivity, W/m-K 100
15
Thermal Expansion, µm/m-K 24
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 23
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 79
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 2.6
7.8
Embodied Carbon, kg CO2/kg material 9.3
2.8
Embodied Energy, MJ/kg 160
39
Embodied Water, L/kg 1180
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
280
Resilience: Unit (Modulus of Resilience), kJ/m3 120
360
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 51
25
Strength to Weight: Axial, points 26
27
Strength to Weight: Bending, points 33
23
Thermal Diffusivity, mm2/s 42
4.0
Thermal Shock Resistance, points 11
17

Alloy Composition

Aluminum (Al), % 91.4 to 93.4
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
16.5 to 18.5
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.2
70.2 to 77.4
Magnesium (Mg), % 6.5 to 7.5
0
Manganese (Mn), % 0.1 to 0.25
0 to 2.0
Nickel (Ni), % 0
6.0 to 8.0
Nitrogen (N), % 0
0.1 to 0.2
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.2
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.25
0
Residuals, % 0 to 0.15
0