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ASTM Grade LC9 Steel vs. EN AC-42200 Aluminum

ASTM grade LC9 steel belongs to the iron alloys classification, while EN AC-42200 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-42200 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
89 to 100
Elastic (Young's, Tensile) Modulus, GPa 190
70
Elongation at Break, % 22
3.0 to 6.7
Fatigue Strength, MPa 420
86 to 90
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Tensile Strength: Ultimate (UTS), MPa 660
320
Tensile Strength: Yield (Proof), MPa 590
240 to 260

Thermal Properties

Latent Heat of Fusion, J/g 260
500
Maximum Temperature: Mechanical, °C 430
170
Melting Completion (Liquidus), °C 1450
610
Melting Onset (Solidus), °C 1410
600
Specific Heat Capacity, J/kg-K 470
910
Thermal Expansion, µm/m-K 13
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
40
Electrical Conductivity: Equal Weight (Specific), % IACS 10
140

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
8.0
Embodied Energy, MJ/kg 31
150
Embodied Water, L/kg 65
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
9.0 to 20
Resilience: Unit (Modulus of Resilience), kJ/m3 920
410 to 490
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
53
Strength to Weight: Axial, points 23
34 to 35
Strength to Weight: Bending, points 21
40 to 41
Thermal Shock Resistance, points 20
15

Alloy Composition

Aluminum (Al), % 0
91 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 0.19
Magnesium (Mg), % 0
0.45 to 0.7
Manganese (Mn), % 0 to 0.9
0 to 0.1
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
6.5 to 7.5
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 0.1