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5754 Aluminum vs. AISI 312 Stainless Steel

5754 aluminum belongs to the aluminum alloys classification, while AISI 312 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (4, 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 5754 aluminum and the bottom bar is AISI 312 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 52 to 88
250
Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 2.0 to 19
28
Fatigue Strength, MPa 66 to 140
370
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 26
80
Shear Strength, MPa 120 to 190
510
Tensile Strength: Ultimate (UTS), MPa 200 to 330
780
Tensile Strength: Yield (Proof), MPa 80 to 280
510

Thermal Properties

Latent Heat of Fusion, J/g 400
300
Maximum Temperature: Mechanical, °C 190
1100
Melting Completion (Liquidus), °C 650
1430
Melting Onset (Solidus), °C 600
1390
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 130
16
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 110
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
17
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 8.7
3.4
Embodied Energy, MJ/kg 150
48
Embodied Water, L/kg 1180
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.1 to 32
190
Resilience: Unit (Modulus of Resilience), kJ/m3 47 to 580
640
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 21 to 34
28
Strength to Weight: Bending, points 28 to 39
24
Thermal Diffusivity, mm2/s 54
4.3
Thermal Shock Resistance, points 8.9 to 14
21

Alloy Composition

Aluminum (Al), % 94.2 to 97.4
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0 to 0.3
24 to 26
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.4
62.2 to 69.2
Magnesium (Mg), % 2.6 to 3.6
0
Manganese (Mn), % 0 to 0.5
0 to 2.0
Molybdenum (Mo), % 0
1.2 to 2.0
Nickel (Ni), % 0
5.5 to 6.5
Nitrogen (N), % 0
0.14 to 0.2
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0