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AISI 446 Stainless Steel vs. 5754 Aluminum

AISI 446 stainless steel belongs to the iron alloys classification, while 5754 aluminum belongs to the aluminum alloys. There are 31 material properties with values for both materials. Properties with values for just one material (5, 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 AISI 446 stainless steel and the bottom bar is 5754 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
52 to 88
Elastic (Young's, Tensile) Modulus, GPa 200
68
Elongation at Break, % 23
2.0 to 19
Fatigue Strength, MPa 200
66 to 140
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 79
26
Shear Strength, MPa 360
120 to 190
Tensile Strength: Ultimate (UTS), MPa 570
200 to 330
Tensile Strength: Yield (Proof), MPa 300
80 to 280

Thermal Properties

Latent Heat of Fusion, J/g 290
400
Maximum Temperature: Mechanical, °C 1180
190
Melting Completion (Liquidus), °C 1510
650
Melting Onset (Solidus), °C 1430
600
Specific Heat Capacity, J/kg-K 490
900
Thermal Conductivity, W/m-K 17
130
Thermal Expansion, µm/m-K 11
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
33
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
110

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 7.7
2.7
Embodied Carbon, kg CO2/kg material 2.4
8.7
Embodied Energy, MJ/kg 35
150
Embodied Water, L/kg 150
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
6.1 to 32
Resilience: Unit (Modulus of Resilience), kJ/m3 230
47 to 580
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
50
Strength to Weight: Axial, points 21
21 to 34
Strength to Weight: Bending, points 20
28 to 39
Thermal Diffusivity, mm2/s 4.6
54
Thermal Shock Resistance, points 19
8.9 to 14

Alloy Composition

Aluminum (Al), % 0
94.2 to 97.4
Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 23 to 27
0 to 0.3
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 69.2 to 77
0 to 0.4
Magnesium (Mg), % 0
2.6 to 3.6
Manganese (Mn), % 0 to 1.5
0 to 0.5
Nickel (Ni), % 0 to 0.75
0
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15