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295.0 Aluminum vs. N08801 Stainless Steel

295.0 aluminum belongs to the aluminum alloys classification, while N08801 stainless steel belongs to the iron alloys. There are 30 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 295.0 aluminum and the bottom bar is N08801 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
200
Elongation at Break, % 2.0 to 7.2
34
Fatigue Strength, MPa 44 to 55
260
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
77
Shear Strength, MPa 180 to 230
570
Tensile Strength: Ultimate (UTS), MPa 230 to 280
860
Tensile Strength: Yield (Proof), MPa 100 to 220
190

Thermal Properties

Latent Heat of Fusion, J/g 400
300
Maximum Temperature: Mechanical, °C 170
1090
Melting Completion (Liquidus), °C 640
1390
Melting Onset (Solidus), °C 530
1360
Specific Heat Capacity, J/kg-K 880
480
Thermal Conductivity, W/m-K 140
12
Thermal Expansion, µm/m-K 23
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 100
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 10
30
Density, g/cm3 3.0
8.0
Embodied Carbon, kg CO2/kg material 7.9
5.5
Embodied Energy, MJ/kg 150
79
Embodied Water, L/kg 1140
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.2 to 13
220
Resilience: Unit (Modulus of Resilience), kJ/m3 77 to 340
92
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
24
Strength to Weight: Axial, points 21 to 26
30
Strength to Weight: Bending, points 27 to 32
25
Thermal Diffusivity, mm2/s 54
3.3
Thermal Shock Resistance, points 9.8 to 12
20

Alloy Composition

Aluminum (Al), % 91.4 to 95.3
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
19 to 22
Copper (Cu), % 4.0 to 5.0
0 to 0.5
Iron (Fe), % 0 to 1.0
39.5 to 50.3
Magnesium (Mg), % 0 to 0.030
0
Manganese (Mn), % 0 to 0.35
0 to 1.5
Nickel (Ni), % 0
30 to 34
Silicon (Si), % 0.7 to 1.5
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.25
0.75 to 1.5
Zinc (Zn), % 0 to 0.35
0
Residuals, % 0 to 0.15
0