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AISI 415 Stainless Steel vs. 511.0 Aluminum

AISI 415 stainless steel belongs to the iron alloys classification, while 511.0 aluminum belongs to the aluminum 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 AISI 415 stainless steel and the bottom bar is 511.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
50
Elastic (Young's, Tensile) Modulus, GPa 200
68
Elongation at Break, % 17
3.0
Fatigue Strength, MPa 430
55
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
25
Shear Strength, MPa 550
120
Tensile Strength: Ultimate (UTS), MPa 900
150
Tensile Strength: Yield (Proof), MPa 700
83

Thermal Properties

Latent Heat of Fusion, J/g 270
400
Maximum Temperature: Mechanical, °C 780
170
Melting Completion (Liquidus), °C 1450
640
Melting Onset (Solidus), °C 1400
590
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 24
140
Thermal Expansion, µm/m-K 10
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
36
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
120

Otherwise Unclassified Properties

Base Metal Price, % relative 11
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 2.5
8.8
Embodied Energy, MJ/kg 35
150
Embodied Water, L/kg 110
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
3.7
Resilience: Unit (Modulus of Resilience), kJ/m3 1250
51
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
51
Strength to Weight: Axial, points 32
15
Strength to Weight: Bending, points 26
23
Thermal Diffusivity, mm2/s 6.4
59
Thermal Shock Resistance, points 33
6.5

Alloy Composition

Aluminum (Al), % 0
93.3 to 96.2
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 11.5 to 14
0
Copper (Cu), % 0
0 to 0.15
Iron (Fe), % 77.8 to 84
0 to 0.5
Magnesium (Mg), % 0
3.5 to 4.5
Manganese (Mn), % 0.5 to 1.0
0 to 0.35
Molybdenum (Mo), % 0.5 to 1.0
0
Nickel (Ni), % 3.5 to 5.5
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.6
0.3 to 0.7
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.15
Residuals, % 0
0 to 0.15