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319.0 Aluminum vs. EN 1.6781 Steel

319.0 aluminum belongs to the aluminum alloys classification, while EN 1.6781 steel belongs to the iron alloys. There are 30 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 319.0 aluminum and the bottom bar is EN 1.6781 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 78 to 84
250
Elastic (Young's, Tensile) Modulus, GPa 72
190
Elongation at Break, % 1.8 to 2.0
17
Fatigue Strength, MPa 76 to 80
450
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Tensile Strength: Ultimate (UTS), MPa 190 to 240
830
Tensile Strength: Yield (Proof), MPa 110 to 180
680

Thermal Properties

Latent Heat of Fusion, J/g 480
260
Maximum Temperature: Mechanical, °C 170
450
Melting Completion (Liquidus), °C 600
1460
Melting Onset (Solidus), °C 540
1420
Specific Heat Capacity, J/kg-K 880
470
Thermal Conductivity, W/m-K 110
44
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 84
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 10
5.0
Density, g/cm3 2.9
7.9
Embodied Carbon, kg CO2/kg material 7.7
1.9
Embodied Energy, MJ/kg 140
25
Embodied Water, L/kg 1080
60

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.3 to 3.9
130
Resilience: Unit (Modulus of Resilience), kJ/m3 88 to 220
1220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 48
24
Strength to Weight: Axial, points 18 to 24
29
Strength to Weight: Bending, points 25 to 30
25
Thermal Diffusivity, mm2/s 44
12
Thermal Shock Resistance, points 8.6 to 11
24

Alloy Composition

Aluminum (Al), % 85.8 to 91.5
0
Carbon (C), % 0
0.15 to 0.19
Chromium (Cr), % 0
1.3 to 1.8
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 0 to 1.0
92.6 to 94.6
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0.55 to 0.8
Molybdenum (Mo), % 0
0.45 to 0.6
Nickel (Ni), % 0 to 0.35
3.0 to 3.5
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 5.5 to 6.5
0 to 0.5
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