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ACI-ASTM CH10 Steel vs. 4343 Aluminum

ACI-ASTM CH10 steel belongs to the iron alloys classification, while 4343 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, 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 ACI-ASTM CH10 steel and the bottom bar is 4343 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
71
Elongation at Break, % 34
4.4
Fatigue Strength, MPa 180
45
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 78
27
Tensile Strength: Ultimate (UTS), MPa 540
110
Tensile Strength: Yield (Proof), MPa 230
62

Thermal Properties

Latent Heat of Fusion, J/g 310
510
Maximum Temperature: Mechanical, °C 1100
160
Melting Completion (Liquidus), °C 1410
620
Melting Onset (Solidus), °C 1370
580
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 15
180
Thermal Expansion, µm/m-K 16
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
44
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
150

Otherwise Unclassified Properties

Base Metal Price, % relative 20
9.5
Density, g/cm3 7.8
2.6
Embodied Carbon, kg CO2/kg material 3.7
7.9
Embodied Energy, MJ/kg 53
150
Embodied Water, L/kg 180
1100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
4.1
Resilience: Unit (Modulus of Resilience), kJ/m3 140
27
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
53
Strength to Weight: Axial, points 19
12
Strength to Weight: Bending, points 19
20
Thermal Diffusivity, mm2/s 3.9
77
Thermal Shock Resistance, points 12
5.2

Alloy Composition

Aluminum (Al), % 0
90.3 to 93.2
Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 22 to 26
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 54.8 to 66
0 to 0.8
Manganese (Mn), % 0 to 1.5
0 to 0.1
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 12 to 15
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.0
6.8 to 8.2
Sulfur (S), % 0 to 0.040
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15