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308.0 Aluminum vs. EN 1.4886 Stainless Steel

308.0 aluminum belongs to the aluminum alloys classification, while EN 1.4886 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, 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 308.0 aluminum and the bottom bar is EN 1.4886 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 70
170
Elastic (Young's, Tensile) Modulus, GPa 73
200
Elongation at Break, % 2.0
45
Fatigue Strength, MPa 89
280
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
76
Shear Strength, MPa 150
400
Tensile Strength: Ultimate (UTS), MPa 190
580
Tensile Strength: Yield (Proof), MPa 110
300

Thermal Properties

Latent Heat of Fusion, J/g 470
320
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 620
1390
Melting Onset (Solidus), °C 540
1340
Specific Heat Capacity, J/kg-K 870
480
Thermal Conductivity, W/m-K 140
12
Thermal Expansion, µm/m-K 20
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 110
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 10
31
Density, g/cm3 2.9
8.0
Embodied Carbon, kg CO2/kg material 7.7
5.4
Embodied Energy, MJ/kg 140
76
Embodied Water, L/kg 1080
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.3
220
Resilience: Unit (Modulus of Resilience), kJ/m3 83
230
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 47
24
Strength to Weight: Axial, points 18
20
Strength to Weight: Bending, points 25
19
Thermal Diffusivity, mm2/s 55
3.1
Thermal Shock Resistance, points 9.2
14

Alloy Composition

Aluminum (Al), % 85.7 to 91
0
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
17 to 20
Copper (Cu), % 4.0 to 5.0
0
Iron (Fe), % 0 to 1.0
38.7 to 49
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0 to 2.0
Nickel (Ni), % 0
33 to 37
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 5.0 to 6.0
1.0 to 2.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0 to 0.5
0