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ASTM Grade LC9 Steel vs. EN AC-51500 Aluminum

ASTM grade LC9 steel belongs to the iron alloys classification, while EN AC-51500 aluminum belongs to the aluminum alloys. There are 28 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 ASTM grade LC9 steel and the bottom bar is EN AC-51500 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
80
Elastic (Young's, Tensile) Modulus, GPa 190
68
Elongation at Break, % 22
5.6
Fatigue Strength, MPa 420
120
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Tensile Strength: Ultimate (UTS), MPa 660
280
Tensile Strength: Yield (Proof), MPa 590
160

Thermal Properties

Latent Heat of Fusion, J/g 260
430
Maximum Temperature: Mechanical, °C 430
170
Melting Completion (Liquidus), °C 1450
630
Melting Onset (Solidus), °C 1410
590
Specific Heat Capacity, J/kg-K 470
910
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
26
Electrical Conductivity: Equal Weight (Specific), % IACS 10
88

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
9.5
Density, g/cm3 7.9
2.6
Embodied Carbon, kg CO2/kg material 2.3
9.0
Embodied Energy, MJ/kg 31
150
Embodied Water, L/kg 65
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
13
Resilience: Unit (Modulus of Resilience), kJ/m3 920
190
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
52
Strength to Weight: Axial, points 23
29
Strength to Weight: Bending, points 21
36
Thermal Shock Resistance, points 20
13

Alloy Composition

Aluminum (Al), % 0
89.8 to 93.1
Carbon (C), % 0 to 0.13
0
Chromium (Cr), % 0 to 0.5
0
Copper (Cu), % 0 to 0.3
0 to 0.050
Iron (Fe), % 87.4 to 91.5
0 to 0.25
Magnesium (Mg), % 0
4.7 to 6.0
Manganese (Mn), % 0 to 0.9
0.4 to 0.8
Molybdenum (Mo), % 0 to 0.2
0
Nickel (Ni), % 8.5 to 10
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.45
1.8 to 2.6
Sulfur (S), % 0 to 0.045
0
Titanium (Ti), % 0
0 to 0.25
Vanadium (V), % 0 to 0.030
0
Zinc (Zn), % 0
0 to 0.070
Residuals, % 0
0 to 0.15