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705.0 Aluminum vs. EN 1.7365 Steel

705.0 aluminum belongs to the aluminum alloys classification, while EN 1.7365 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 705.0 aluminum and the bottom bar is EN 1.7365 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 62 to 65
210
Elastic (Young's, Tensile) Modulus, GPa 69
190
Elongation at Break, % 8.4 to 10
18
Fatigue Strength, MPa 63 to 98
320
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
74
Tensile Strength: Ultimate (UTS), MPa 240 to 260
700
Tensile Strength: Yield (Proof), MPa 130
470

Thermal Properties

Latent Heat of Fusion, J/g 390
260
Maximum Temperature: Mechanical, °C 180
510
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 610
1420
Specific Heat Capacity, J/kg-K 890
470
Thermal Conductivity, W/m-K 140
40
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 110
9.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
4.4
Density, g/cm3 2.8
7.8
Embodied Carbon, kg CO2/kg material 8.4
1.8
Embodied Energy, MJ/kg 150
24
Embodied Water, L/kg 1170
70

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 18 to 20
110
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 130
580
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 49
25
Strength to Weight: Axial, points 24 to 26
25
Strength to Weight: Bending, points 31 to 32
22
Thermal Diffusivity, mm2/s 55
11
Thermal Shock Resistance, points 11
20

Alloy Composition

Aluminum (Al), % 92.3 to 98.6
0
Carbon (C), % 0
0.12 to 0.19
Chromium (Cr), % 0 to 0.4
4.0 to 6.0
Copper (Cu), % 0 to 0.2
0 to 0.3
Iron (Fe), % 0 to 0.8
91.2 to 94.9
Magnesium (Mg), % 1.4 to 1.8
0
Manganese (Mn), % 0 to 0.6
0.5 to 0.8
Molybdenum (Mo), % 0
0.45 to 0.65
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.2
0 to 0.8
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0 to 0.25
0
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0 to 3.3
0
Residuals, % 0 to 0.15
0