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705.0 Aluminum vs. EN 1.4110 Stainless Steel

705.0 aluminum belongs to the aluminum alloys classification, while EN 1.4110 stainless steel belongs to the iron alloys. There are 29 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 705.0 aluminum and the bottom bar is EN 1.4110 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
190
Elongation at Break, % 8.4 to 10
11 to 14
Fatigue Strength, MPa 63 to 98
250 to 730
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
76
Tensile Strength: Ultimate (UTS), MPa 240 to 260
770 to 1720
Tensile Strength: Yield (Proof), MPa 130
430 to 1330

Thermal Properties

Latent Heat of Fusion, J/g 390
280
Maximum Temperature: Mechanical, °C 180
790
Melting Completion (Liquidus), °C 640
1440
Melting Onset (Solidus), °C 610
1400
Specific Heat Capacity, J/kg-K 890
480
Thermal Conductivity, W/m-K 140
30
Thermal Expansion, µm/m-K 24
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 110
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
8.0
Density, g/cm3 2.8
7.7
Embodied Carbon, kg CO2/kg material 8.4
2.3
Embodied Energy, MJ/kg 150
33
Embodied Water, L/kg 1170
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 18 to 20
90 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 130
480 to 4550
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 49
25
Strength to Weight: Axial, points 24 to 26
28 to 62
Strength to Weight: Bending, points 31 to 32
24 to 41
Thermal Diffusivity, mm2/s 55
8.1
Thermal Shock Resistance, points 11
27 to 60

Alloy Composition

Aluminum (Al), % 92.3 to 98.6
0
Carbon (C), % 0
0.48 to 0.6
Chromium (Cr), % 0 to 0.4
13 to 15
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 0 to 0.8
81.4 to 86
Magnesium (Mg), % 1.4 to 1.8
0
Manganese (Mn), % 0 to 0.6
0 to 1.0
Molybdenum (Mo), % 0
0.5 to 0.8
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.2
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.25
0
Vanadium (V), % 0
0 to 0.15
Zinc (Zn), % 0 to 3.3
0
Residuals, % 0 to 0.15
0