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N08810 Stainless Steel vs. 705.0 Aluminum

N08810 stainless steel belongs to the iron alloys classification, while 705.0 aluminum belongs to the aluminum alloys. There are 29 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 N08810 stainless steel and the bottom bar is 705.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
69
Elongation at Break, % 33
8.4 to 10
Fatigue Strength, MPa 160
63 to 98
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
26
Tensile Strength: Ultimate (UTS), MPa 520
240 to 260
Tensile Strength: Yield (Proof), MPa 200
130

Thermal Properties

Latent Heat of Fusion, J/g 300
390
Maximum Temperature: Mechanical, °C 1100
180
Melting Completion (Liquidus), °C 1400
640
Melting Onset (Solidus), °C 1350
610
Specific Heat Capacity, J/kg-K 480
890
Thermal Conductivity, W/m-K 12
140
Thermal Expansion, µm/m-K 14
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
34
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
110

Otherwise Unclassified Properties

Base Metal Price, % relative 30
9.5
Density, g/cm3 8.0
2.8
Embodied Carbon, kg CO2/kg material 5.3
8.4
Embodied Energy, MJ/kg 76
150
Embodied Water, L/kg 200
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
18 to 20
Resilience: Unit (Modulus of Resilience), kJ/m3 100
120 to 130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
49
Strength to Weight: Axial, points 18
24 to 26
Strength to Weight: Bending, points 18
31 to 32
Thermal Diffusivity, mm2/s 3.0
55
Thermal Shock Resistance, points 13
11

Alloy Composition

Aluminum (Al), % 0.15 to 0.6
92.3 to 98.6
Carbon (C), % 0.050 to 0.1
0
Chromium (Cr), % 19 to 23
0 to 0.4
Copper (Cu), % 0 to 0.75
0 to 0.2
Iron (Fe), % 39.5 to 50.7
0 to 0.8
Magnesium (Mg), % 0
1.4 to 1.8
Manganese (Mn), % 0 to 1.5
0 to 0.6
Nickel (Ni), % 30 to 35
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0 to 0.2
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0.15 to 0.6
0 to 0.25
Zinc (Zn), % 0
0 to 3.3
Residuals, % 0
0 to 0.15