MakeItFrom.com
Menu (ESC)

711.0 Aluminum vs. EN 1.4421 Stainless Steel

711.0 aluminum belongs to the aluminum alloys classification, while EN 1.4421 stainless steel belongs to the iron alloys. There are 29 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 EN 1.4421 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
200
Elongation at Break, % 7.8
11 to 17
Fatigue Strength, MPa 100
380 to 520
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 27
77
Tensile Strength: Ultimate (UTS), MPa 220
880 to 1100
Tensile Strength: Yield (Proof), MPa 140
620 to 950

Thermal Properties

Latent Heat of Fusion, J/g 380
280
Maximum Temperature: Mechanical, °C 170
870
Melting Completion (Liquidus), °C 640
1440
Melting Onset (Solidus), °C 610
1400
Specific Heat Capacity, J/kg-K 860
480
Thermal Conductivity, W/m-K 160
16
Thermal Expansion, µm/m-K 24
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 120
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 3.0
7.8
Embodied Carbon, kg CO2/kg material 7.9
2.6
Embodied Energy, MJ/kg 150
36
Embodied Water, L/kg 1120
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15
120 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 140
960 to 2270
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
25
Strength to Weight: Axial, points 20
31 to 39
Strength to Weight: Bending, points 26
26 to 30
Thermal Diffusivity, mm2/s 61
4.4
Thermal Shock Resistance, points 9.3
31 to 39

Alloy Composition

Aluminum (Al), % 89.8 to 92.7
0
Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0
15.5 to 17.5
Copper (Cu), % 0.35 to 0.65
0
Iron (Fe), % 0.7 to 1.4
74.4 to 80.5
Magnesium (Mg), % 0.25 to 0.45
0
Manganese (Mn), % 0 to 0.050
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.7
Nickel (Ni), % 0
4.0 to 5.5
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.3
0 to 0.8
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 6.0 to 7.0
0
Residuals, % 0 to 0.15
0