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4343 Aluminum vs. EN 1.4110 Stainless Steel

4343 aluminum belongs to the aluminum alloys classification, while EN 1.4110 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 4343 aluminum and the bottom bar is EN 1.4110 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 4.4
11 to 14
Fatigue Strength, MPa 45
250 to 730
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
76
Shear Strength, MPa 64
470 to 1030
Tensile Strength: Ultimate (UTS), MPa 110
770 to 1720
Tensile Strength: Yield (Proof), MPa 62
430 to 1330

Thermal Properties

Latent Heat of Fusion, J/g 510
280
Maximum Temperature: Mechanical, °C 160
790
Melting Completion (Liquidus), °C 620
1440
Melting Onset (Solidus), °C 580
1400
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 180
30
Thermal Expansion, µm/m-K 22
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 150
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
8.0
Density, g/cm3 2.6
7.7
Embodied Carbon, kg CO2/kg material 7.9
2.3
Embodied Energy, MJ/kg 150
33
Embodied Water, L/kg 1100
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.1
90 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 27
480 to 4550
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 53
25
Strength to Weight: Axial, points 12
28 to 62
Strength to Weight: Bending, points 20
24 to 41
Thermal Diffusivity, mm2/s 77
8.1
Thermal Shock Resistance, points 5.2
27 to 60

Alloy Composition

Aluminum (Al), % 90.3 to 93.2
0
Carbon (C), % 0
0.48 to 0.6
Chromium (Cr), % 0
13 to 15
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 0 to 0.8
81.4 to 86
Manganese (Mn), % 0 to 0.1
0 to 1.0
Molybdenum (Mo), % 0
0.5 to 0.8
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 6.8 to 8.2
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Vanadium (V), % 0
0 to 0.15
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0