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SAE-AISI 1042 Steel vs. 357.0 Aluminum

SAE-AISI 1042 steel belongs to the iron alloys classification, while 357.0 aluminum belongs to the aluminum alloys. There are 31 material properties with values for both materials. Properties with values for just one material (1, 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 357.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 200
95
Elastic (Young's, Tensile) Modulus, GPa 190
70
Elongation at Break, % 14 to 18
3.4
Fatigue Strength, MPa 230 to 370
76
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Shear Strength, MPa 380 to 420
200
Tensile Strength: Ultimate (UTS), MPa 620 to 700
350
Tensile Strength: Yield (Proof), MPa 340 to 580
300

Thermal Properties

Latent Heat of Fusion, J/g 250
500
Maximum Temperature: Mechanical, °C 400
170
Melting Completion (Liquidus), °C 1460
620
Melting Onset (Solidus), °C 1420
560
Specific Heat Capacity, J/kg-K 470
910
Thermal Conductivity, W/m-K 52
150
Thermal Expansion, µm/m-K 12
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
39
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
140

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
9.5
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
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 94
11
Resilience: Unit (Modulus of Resilience), kJ/m3 320 to 900
620
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
53
Strength to Weight: Axial, points 22 to 25
38
Strength to Weight: Bending, points 21 to 22
43
Thermal Diffusivity, mm2/s 14
64
Thermal Shock Resistance, points 20 to 22
17

Alloy Composition

Aluminum (Al), % 0
91.3 to 93.1
Carbon (C), % 0.4 to 0.47
0
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 98.5 to 99
0 to 0.15
Magnesium (Mg), % 0
0.45 to 0.6
Manganese (Mn), % 0.6 to 0.9
0 to 0.030
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0
6.5 to 7.5
Sulfur (S), % 0 to 0.050
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.050
Residuals, % 0
0 to 0.15