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296.0 Aluminum vs. S15700 Stainless Steel

296.0 aluminum belongs to the aluminum alloys classification, while S15700 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 296.0 aluminum and the bottom bar is S15700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 75 to 90
200 to 460
Elastic (Young's, Tensile) Modulus, GPa 72
200
Elongation at Break, % 3.2 to 7.1
1.1 to 29
Fatigue Strength, MPa 47 to 70
370 to 770
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
77
Tensile Strength: Ultimate (UTS), MPa 260 to 270
1180 to 1890
Tensile Strength: Yield (Proof), MPa 120 to 180
500 to 1770

Thermal Properties

Latent Heat of Fusion, J/g 420
290
Maximum Temperature: Mechanical, °C 170
870
Melting Completion (Liquidus), °C 630
1440
Melting Onset (Solidus), °C 540
1400
Specific Heat Capacity, J/kg-K 870
480
Thermal Conductivity, W/m-K 130 to 150
16
Thermal Expansion, µm/m-K 22
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33 to 37
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 99 to 110
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 11
15
Density, g/cm3 3.0
7.8
Embodied Carbon, kg CO2/kg material 7.8
3.4
Embodied Energy, MJ/kg 150
47
Embodied Water, L/kg 1110
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.6 to 15
17 to 270
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 220
640 to 4660
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
25
Strength to Weight: Axial, points 24 to 25
42 to 67
Strength to Weight: Bending, points 30 to 31
32 to 43
Thermal Diffusivity, mm2/s 51 to 56
4.2
Thermal Shock Resistance, points 12
39 to 63

Alloy Composition

Aluminum (Al), % 89 to 94
0.75 to 1.5
Carbon (C), % 0
0 to 0.090
Chromium (Cr), % 0
14 to 16
Copper (Cu), % 4.0 to 5.0
0
Iron (Fe), % 0 to 1.2
69.6 to 76.8
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.35
0 to 1.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0 to 0.35
6.5 to 7.7
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 2.0 to 3.0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.35
0