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2030 Aluminum vs. S17600 Stainless Steel

2030 aluminum belongs to the aluminum alloys classification, while S17600 stainless steel belongs to the iron alloys. There are 30 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 2030 aluminum and the bottom bar is S17600 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 5.6 to 8.0
8.6 to 11
Fatigue Strength, MPa 91 to 110
300 to 680
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
76
Shear Strength, MPa 220 to 250
560 to 880
Tensile Strength: Ultimate (UTS), MPa 370 to 420
940 to 1490
Tensile Strength: Yield (Proof), MPa 240 to 270
580 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 390
290
Maximum Temperature: Mechanical, °C 190
890
Melting Completion (Liquidus), °C 640
1430
Melting Onset (Solidus), °C 510
1390
Specific Heat Capacity, J/kg-K 870
480
Thermal Conductivity, W/m-K 130
15
Thermal Expansion, µm/m-K 23
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 99
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 10
13
Density, g/cm3 3.1
7.8
Embodied Carbon, kg CO2/kg material 8.0
2.9
Embodied Energy, MJ/kg 150
42
Embodied Water, L/kg 1140
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21 to 26
70 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 390 to 530
850 to 4390
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
25
Strength to Weight: Axial, points 33 to 38
34 to 54
Strength to Weight: Bending, points 37 to 40
28 to 37
Thermal Diffusivity, mm2/s 50
4.1
Thermal Shock Resistance, points 16 to 19
31 to 50

Alloy Composition

Aluminum (Al), % 88.9 to 95.2
0 to 0.4
Bismuth (Bi), % 0 to 0.2
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0 to 0.1
16 to 17.5
Copper (Cu), % 3.3 to 4.5
0
Iron (Fe), % 0 to 0.7
71.3 to 77.6
Lead (Pb), % 0.8 to 1.5
0
Magnesium (Mg), % 0.5 to 1.3
0
Manganese (Mn), % 0.2 to 1.0
0 to 1.0
Nickel (Ni), % 0
6.0 to 7.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.8
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.2
0.4 to 1.2
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.3
0