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308.0 Aluminum vs. EN 1.0255 Steel

308.0 aluminum belongs to the aluminum alloys classification, while EN 1.0255 steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (2, 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 1.0255 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 70
120
Elastic (Young's, Tensile) Modulus, GPa 73
190
Elongation at Break, % 2.0
27
Fatigue Strength, MPa 89
180
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Shear Strength, MPa 150
280
Tensile Strength: Ultimate (UTS), MPa 190
430
Tensile Strength: Yield (Proof), MPa 110
250

Thermal Properties

Latent Heat of Fusion, J/g 470
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 620
1460
Melting Onset (Solidus), °C 540
1420
Specific Heat Capacity, J/kg-K 870
470
Thermal Conductivity, W/m-K 140
40
Thermal Expansion, µm/m-K 20
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 110
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 10
2.1
Density, g/cm3 2.9
7.8
Embodied Carbon, kg CO2/kg material 7.7
1.5
Embodied Energy, MJ/kg 140
19
Embodied Water, L/kg 1080
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.3
100
Resilience: Unit (Modulus of Resilience), kJ/m3 83
160
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 47
24
Strength to Weight: Axial, points 18
15
Strength to Weight: Bending, points 25
16
Thermal Diffusivity, mm2/s 55
11
Thermal Shock Resistance, points 9.2
14

Alloy Composition

Aluminum (Al), % 85.7 to 91
0.020 to 0.2
Carbon (C), % 0
0 to 0.16
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 4.0 to 5.0
0 to 0.3
Iron (Fe), % 0 to 1.0
94.1 to 99.98
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0 to 1.2
Molybdenum (Mo), % 0
0 to 0.080
Nickel (Ni), % 0
0 to 0.3
Niobium (Nb), % 0
0 to 0.010
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 5.0 to 6.0
0 to 0.35
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.25
0 to 0.040
Vanadium (V), % 0
0 to 0.020
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0 to 0.5
0