MakeItFrom.com
Menu (ESC)

7049 Aluminum vs. SAE-AISI 1090 Steel

7049 aluminum belongs to the aluminum alloys classification, while SAE-AISI 1090 steel belongs to the iron 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 7049 aluminum and the bottom bar is SAE-AISI 1090 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
220 to 280
Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 6.2 to 7.0
11
Fatigue Strength, MPa 160 to 170
320 to 380
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 27
72
Shear Strength, MPa 300 to 310
470 to 570
Tensile Strength: Ultimate (UTS), MPa 510 to 530
790 to 950
Tensile Strength: Yield (Proof), MPa 420 to 450
520 to 610

Thermal Properties

Latent Heat of Fusion, J/g 370
240
Maximum Temperature: Mechanical, °C 180
400
Melting Completion (Liquidus), °C 640
1450
Melting Onset (Solidus), °C 480
1410
Specific Heat Capacity, J/kg-K 860
470
Thermal Conductivity, W/m-K 130
50
Thermal Expansion, µm/m-K 23
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 110
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 10
1.8
Density, g/cm3 3.1
7.8
Embodied Carbon, kg CO2/kg material 8.1
1.4
Embodied Energy, MJ/kg 140
19
Embodied Water, L/kg 1110
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 34
82 to 91
Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 1440
730 to 1000
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
24
Strength to Weight: Axial, points 46 to 47
28 to 34
Strength to Weight: Bending, points 46 to 47
24 to 27
Thermal Diffusivity, mm2/s 51
13
Thermal Shock Resistance, points 22 to 23
25 to 31

Alloy Composition

Aluminum (Al), % 85.7 to 89.5
0
Carbon (C), % 0
0.85 to 1.0
Chromium (Cr), % 0.1 to 0.22
0
Copper (Cu), % 1.2 to 1.9
0
Iron (Fe), % 0 to 0.35
98 to 98.6
Magnesium (Mg), % 2.0 to 2.9
0
Manganese (Mn), % 0 to 0.2
0.6 to 0.9
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.25
0
Sulfur (S), % 0
0 to 0.050
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 7.2 to 8.2
0
Residuals, % 0 to 0.15
0