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SAE-AISI 1151 Steel vs. 711.0 Aluminum

SAE-AISI 1151 steel belongs to the iron alloys classification, while 711.0 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 1151 steel and the bottom bar is 711.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 220
70
Elastic (Young's, Tensile) Modulus, GPa 190
71
Elongation at Break, % 11 to 17
7.8
Fatigue Strength, MPa 260 to 410
100
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 72
27
Tensile Strength: Ultimate (UTS), MPa 710 to 800
220
Tensile Strength: Yield (Proof), MPa 390 to 660
140

Thermal Properties

Latent Heat of Fusion, J/g 250
380
Maximum Temperature: Mechanical, °C 400
170
Melting Completion (Liquidus), °C 1460
640
Melting Onset (Solidus), °C 1420
610
Specific Heat Capacity, J/kg-K 470
860
Thermal Conductivity, W/m-K 51
160
Thermal Expansion, µm/m-K 12
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
40
Electrical Conductivity: Equal Weight (Specific), % IACS 12
120

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
9.5
Density, g/cm3 7.8
3.0
Embodied Carbon, kg CO2/kg material 1.4
7.9
Embodied Energy, MJ/kg 18
150
Embodied Water, L/kg 46
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86 to 100
15
Resilience: Unit (Modulus of Resilience), kJ/m3 400 to 1170
140
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
45
Strength to Weight: Axial, points 25 to 28
20
Strength to Weight: Bending, points 22 to 24
26
Thermal Diffusivity, mm2/s 14
61
Thermal Shock Resistance, points 22 to 25
9.3

Alloy Composition

Aluminum (Al), % 0
89.8 to 92.7
Carbon (C), % 0.48 to 0.55
0
Copper (Cu), % 0
0.35 to 0.65
Iron (Fe), % 98.3 to 98.7
0.7 to 1.4
Magnesium (Mg), % 0
0.25 to 0.45
Manganese (Mn), % 0.7 to 1.0
0 to 0.050
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0
0 to 0.3
Sulfur (S), % 0.080 to 0.13
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
6.0 to 7.0
Residuals, % 0
0 to 0.15