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7049 Aluminum vs. AISI 410Cb Stainless Steel

7049 aluminum belongs to the aluminum alloys classification, while AISI 410Cb stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, 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 AISI 410Cb stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
200 to 270
Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 6.2 to 7.0
15
Fatigue Strength, MPa 160 to 170
180 to 460
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 27
76
Shear Strength, MPa 300 to 310
340 to 590
Tensile Strength: Ultimate (UTS), MPa 510 to 530
550 to 960
Tensile Strength: Yield (Proof), MPa 420 to 450
310 to 790

Thermal Properties

Latent Heat of Fusion, J/g 370
270
Maximum Temperature: Mechanical, °C 180
730
Melting Completion (Liquidus), °C 640
1450
Melting Onset (Solidus), °C 480
1400
Specific Heat Capacity, J/kg-K 860
480
Thermal Conductivity, W/m-K 130
27
Thermal Expansion, µm/m-K 23
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 110
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 10
7.5
Density, g/cm3 3.1
7.7
Embodied Carbon, kg CO2/kg material 8.1
2.0
Embodied Energy, MJ/kg 140
29
Embodied Water, L/kg 1110
97

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 34
70 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 1440
240 to 1600
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
25
Strength to Weight: Axial, points 46 to 47
20 to 35
Strength to Weight: Bending, points 46 to 47
19 to 28
Thermal Diffusivity, mm2/s 51
7.3
Thermal Shock Resistance, points 22 to 23
20 to 35

Alloy Composition

Aluminum (Al), % 85.7 to 89.5
0
Carbon (C), % 0
0 to 0.18
Chromium (Cr), % 0.1 to 0.22
11 to 13
Copper (Cu), % 1.2 to 1.9
0
Iron (Fe), % 0 to 0.35
84.5 to 89
Magnesium (Mg), % 2.0 to 2.9
0
Manganese (Mn), % 0 to 0.2
0 to 1.0
Niobium (Nb), % 0
0.050 to 0.3
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.25
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 7.2 to 8.2
0
Residuals, % 0 to 0.15
0