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535.0 Aluminum vs. S17700 Stainless Steel

535.0 aluminum belongs to the aluminum alloys classification, while S17700 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 535.0 aluminum and the bottom bar is S17700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 70
180 to 430
Elastic (Young's, Tensile) Modulus, GPa 67
200
Elongation at Break, % 10
1.0 to 23
Fatigue Strength, MPa 70
290 to 560
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 25
76
Shear Strength, MPa 190
740 to 940
Tensile Strength: Ultimate (UTS), MPa 270
1180 to 1650
Tensile Strength: Yield (Proof), MPa 140
430 to 1210

Thermal Properties

Latent Heat of Fusion, J/g 390
290
Maximum Temperature: Mechanical, °C 170
890
Melting Completion (Liquidus), °C 630
1440
Melting Onset (Solidus), °C 570
1400
Specific Heat Capacity, J/kg-K 910
480
Thermal Conductivity, W/m-K 100
15
Thermal Expansion, µm/m-K 24
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 23
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 79
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 2.6
7.7
Embodied Carbon, kg CO2/kg material 9.4
2.8
Embodied Energy, MJ/kg 160
40
Embodied Water, L/kg 1180
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24
15 to 210
Resilience: Unit (Modulus of Resilience), kJ/m3 150
460 to 3750
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 51
25
Strength to Weight: Axial, points 28
42 to 59
Strength to Weight: Bending, points 35
32 to 40
Thermal Diffusivity, mm2/s 42
4.1
Thermal Shock Resistance, points 12
39 to 54

Alloy Composition

Aluminum (Al), % 91.5 to 93.6
0.75 to 1.5
Beryllium (Be), % 0.0030 to 0.0070
0
Boron (B), % 0 to 0.0050
0
Carbon (C), % 0
0 to 0.090
Chromium (Cr), % 0
16 to 18
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.15
70.5 to 76.8
Magnesium (Mg), % 6.2 to 7.5
0
Manganese (Mn), % 0.1 to 0.25
0 to 1.0
Nickel (Ni), % 0
6.5 to 7.8
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.15
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0.1 to 0.25
0
Residuals, % 0 to 0.15
0