MakeItFrom.com
Menu (ESC)

711.0 Aluminum vs. S21900 Stainless Steel

711.0 aluminum belongs to the aluminum alloys classification, while S21900 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 711.0 aluminum and the bottom bar is S21900 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 70
220
Elastic (Young's, Tensile) Modulus, GPa 71
200
Elongation at Break, % 7.8
50
Fatigue Strength, MPa 100
380
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 27
78
Tensile Strength: Ultimate (UTS), MPa 220
710
Tensile Strength: Yield (Proof), MPa 140
390

Thermal Properties

Latent Heat of Fusion, J/g 380
290
Maximum Temperature: Mechanical, °C 170
980
Melting Completion (Liquidus), °C 640
1400
Melting Onset (Solidus), °C 610
1350
Specific Heat Capacity, J/kg-K 860
480
Thermal Conductivity, W/m-K 160
14
Thermal Expansion, µm/m-K 24
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 120
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
15
Density, g/cm3 3.0
7.7
Embodied Carbon, kg CO2/kg material 7.9
3.0
Embodied Energy, MJ/kg 150
43
Embodied Water, L/kg 1120
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15
300
Resilience: Unit (Modulus of Resilience), kJ/m3 140
380
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
25
Strength to Weight: Axial, points 20
26
Strength to Weight: Bending, points 26
23
Thermal Diffusivity, mm2/s 61
3.8
Thermal Shock Resistance, points 9.3
15

Alloy Composition

Aluminum (Al), % 89.8 to 92.7
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
19 to 21.5
Copper (Cu), % 0.35 to 0.65
0
Iron (Fe), % 0.7 to 1.4
59.4 to 67.4
Magnesium (Mg), % 0.25 to 0.45
0
Manganese (Mn), % 0 to 0.050
8.0 to 10
Nickel (Ni), % 0
5.5 to 7.5
Nitrogen (N), % 0
0.15 to 0.4
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.3
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 6.0 to 7.0
0
Residuals, % 0 to 0.15
0