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SAE-AISI 1541 Steel vs. 7076 Aluminum

SAE-AISI 1541 steel belongs to the iron alloys classification, while 7076 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 1541 steel and the bottom bar is 7076 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 220
160
Elastic (Young's, Tensile) Modulus, GPa 190
70
Elongation at Break, % 11 to 17
6.2
Fatigue Strength, MPa 260 to 420
170
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
27
Shear Strength, MPa 440 to 480
310
Tensile Strength: Ultimate (UTS), MPa 720 to 790
530
Tensile Strength: Yield (Proof), MPa 390 to 680
460

Thermal Properties

Latent Heat of Fusion, J/g 250
380
Maximum Temperature: Mechanical, °C 400
170
Melting Completion (Liquidus), °C 1460
630
Melting Onset (Solidus), °C 1420
460
Specific Heat Capacity, J/kg-K 470
860
Thermal Conductivity, W/m-K 52
140
Thermal Expansion, µm/m-K 12
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
35
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
100

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
9.5
Density, g/cm3 7.8
3.0
Embodied Carbon, kg CO2/kg material 1.4
8.0
Embodied Energy, MJ/kg 19
150
Embodied Water, L/kg 48
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78 to 100
31
Resilience: Unit (Modulus of Resilience), kJ/m3 410 to 1250
1510
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
45
Strength to Weight: Axial, points 25 to 28
49
Strength to Weight: Bending, points 23 to 24
48
Thermal Diffusivity, mm2/s 14
54
Thermal Shock Resistance, points 23 to 25
23

Alloy Composition

Aluminum (Al), % 0
86.9 to 91.2
Carbon (C), % 0.36 to 0.44
0
Copper (Cu), % 0
0.3 to 1.0
Iron (Fe), % 97.8 to 98.3
0 to 0.6
Magnesium (Mg), % 0
1.2 to 2.0
Manganese (Mn), % 1.4 to 1.7
0.3 to 0.8
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0
0 to 0.4
Sulfur (S), % 0 to 0.050
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
7.0 to 8.0
Residuals, % 0
0 to 0.15