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A357.0 Aluminum vs. AISI 316LN Stainless Steel

A357.0 aluminum belongs to the aluminum alloys classification, while AISI 316LN stainless steel belongs to the iron 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 A357.0 aluminum and the bottom bar is AISI 316LN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100
180
Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 3.7
42
Fatigue Strength, MPa 100
200
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
82
Shear Strength, MPa 240
410
Tensile Strength: Ultimate (UTS), MPa 350
590
Tensile Strength: Yield (Proof), MPa 270
230

Thermal Properties

Latent Heat of Fusion, J/g 500
290
Maximum Temperature: Mechanical, °C 170
940
Melting Completion (Liquidus), °C 610
1450
Melting Onset (Solidus), °C 560
1380
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 160
15
Thermal Expansion, µm/m-K 21
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 12
19
Density, g/cm3 2.6
7.9
Embodied Carbon, kg CO2/kg material 8.2
3.8
Embodied Energy, MJ/kg 150
53
Embodied Water, L/kg 1110
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
200
Resilience: Unit (Modulus of Resilience), kJ/m3 520
130
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 53
25
Strength to Weight: Axial, points 38
21
Strength to Weight: Bending, points 43
20
Thermal Diffusivity, mm2/s 68
4.1
Thermal Shock Resistance, points 17
13

Alloy Composition

Aluminum (Al), % 90.8 to 93
0
Beryllium (Be), % 0.040 to 0.070
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
16 to 18
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 0 to 0.2
62 to 71.9
Magnesium (Mg), % 0.4 to 0.7
0
Manganese (Mn), % 0 to 0.1
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
10 to 14
Nitrogen (N), % 0
0.1 to 0.16
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 6.5 to 7.5
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0.040 to 0.2
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0