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SAE-AISI 1042 Steel vs. EN AC-51300 Aluminum

SAE-AISI 1042 steel belongs to the iron alloys classification, while EN AC-51300 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 EN AC-51300 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 200
65
Elastic (Young's, Tensile) Modulus, GPa 190
67
Elongation at Break, % 14 to 18
3.7
Fatigue Strength, MPa 230 to 370
78
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
25
Tensile Strength: Ultimate (UTS), MPa 620 to 700
190
Tensile Strength: Yield (Proof), MPa 340 to 580
110

Thermal Properties

Latent Heat of Fusion, J/g 250
400
Maximum Temperature: Mechanical, °C 400
170
Melting Completion (Liquidus), °C 1460
640
Melting Onset (Solidus), °C 1420
600
Specific Heat Capacity, J/kg-K 470
910
Thermal Conductivity, W/m-K 52
110
Thermal Expansion, µm/m-K 12
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
31
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
100

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 1.4
9.1
Embodied Energy, MJ/kg 18
150
Embodied Water, L/kg 46
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 94
6.1
Resilience: Unit (Modulus of Resilience), kJ/m3 320 to 900
87
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
51
Strength to Weight: Axial, points 22 to 25
20
Strength to Weight: Bending, points 21 to 22
28
Thermal Diffusivity, mm2/s 14
45
Thermal Shock Resistance, points 20 to 22
8.6

Alloy Composition

Aluminum (Al), % 0
91.4 to 95.5
Carbon (C), % 0.4 to 0.47
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 98.5 to 99
0 to 0.55
Magnesium (Mg), % 0
4.5 to 6.5
Manganese (Mn), % 0.6 to 0.9
0 to 0.45
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0
0 to 0.55
Sulfur (S), % 0 to 0.050
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15