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850.0 Aluminum vs. ASTM Grade LC3 Steel

850.0 aluminum belongs to the aluminum alloys classification, while ASTM grade LC3 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 850.0 aluminum and the bottom bar is ASTM grade LC3 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 45
170
Elastic (Young's, Tensile) Modulus, GPa 69
190
Elongation at Break, % 7.9
27
Fatigue Strength, MPa 59
230
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Tensile Strength: Ultimate (UTS), MPa 140
570
Tensile Strength: Yield (Proof), MPa 76
310

Thermal Properties

Latent Heat of Fusion, J/g 380
250
Maximum Temperature: Mechanical, °C 190
410
Melting Completion (Liquidus), °C 650
1460
Melting Onset (Solidus), °C 370
1420
Specific Heat Capacity, J/kg-K 850
470
Thermal Conductivity, W/m-K 180
52
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 47
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 140
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 14
4.0
Density, g/cm3 3.1
7.9
Embodied Carbon, kg CO2/kg material 8.5
1.7
Embodied Energy, MJ/kg 160
23
Embodied Water, L/kg 1160
52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.1
130
Resilience: Unit (Modulus of Resilience), kJ/m3 42
260
Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 44
24
Strength to Weight: Axial, points 12
20
Strength to Weight: Bending, points 19
19
Thermal Diffusivity, mm2/s 69
14
Thermal Shock Resistance, points 6.1
17

Alloy Composition

Aluminum (Al), % 88.3 to 93.1
0
Carbon (C), % 0
0 to 0.15
Copper (Cu), % 0.7 to 1.3
0
Iron (Fe), % 0 to 0.7
94.4 to 96.5
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.1
0.5 to 0.8
Nickel (Ni), % 0.7 to 1.3
3.0 to 4.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.7
0 to 0.6
Sulfur (S), % 0
0 to 0.045
Tin (Sn), % 5.5 to 7.0
0
Titanium (Ti), % 0 to 0.2
0
Residuals, % 0 to 0.3
0