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SAE-AISI 1042 Steel vs. 364.0 Aluminum

SAE-AISI 1042 steel belongs to the iron alloys classification, while 364.0 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 SAE-AISI 1042 steel and the bottom bar is 364.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
72
Elongation at Break, % 14 to 18
7.5
Fatigue Strength, MPa 230 to 370
120
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
27
Shear Strength, MPa 380 to 420
200
Tensile Strength: Ultimate (UTS), MPa 620 to 700
300
Tensile Strength: Yield (Proof), MPa 340 to 580
160

Thermal Properties

Latent Heat of Fusion, J/g 250
520
Maximum Temperature: Mechanical, °C 400
190
Melting Completion (Liquidus), °C 1460
600
Melting Onset (Solidus), °C 1420
560
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 52
120
Thermal Expansion, µm/m-K 12
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
30
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
100

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
11
Density, g/cm3 7.8
2.6
Embodied Carbon, kg CO2/kg material 1.4
8.0
Embodied Energy, MJ/kg 18
150
Embodied Water, L/kg 46
1080

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 94
19
Resilience: Unit (Modulus of Resilience), kJ/m3 320 to 900
180
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
53
Strength to Weight: Axial, points 22 to 25
31
Strength to Weight: Bending, points 21 to 22
38
Thermal Diffusivity, mm2/s 14
51
Thermal Shock Resistance, points 20 to 22
14

Alloy Composition

Aluminum (Al), % 0
87.2 to 92
Beryllium (Be), % 0
0.020 to 0.040
Carbon (C), % 0.4 to 0.47
0
Chromium (Cr), % 0
0.25 to 0.5
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 98.5 to 99
0 to 1.5
Magnesium (Mg), % 0
0.2 to 0.4
Manganese (Mn), % 0.6 to 0.9
0 to 0.1
Nickel (Ni), % 0
0 to 0.15
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0
7.5 to 9.5
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.15
Residuals, % 0
0 to 0.15