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705.0 Aluminum vs. EN 1.7375 Steel

705.0 aluminum belongs to the aluminum alloys classification, while EN 1.7375 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 705.0 aluminum and the bottom bar is EN 1.7375 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 62 to 65
180
Elastic (Young's, Tensile) Modulus, GPa 69
190
Elongation at Break, % 8.4 to 10
20
Fatigue Strength, MPa 63 to 98
270
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
74
Tensile Strength: Ultimate (UTS), MPa 240 to 260
620
Tensile Strength: Yield (Proof), MPa 130
400

Thermal Properties

Latent Heat of Fusion, J/g 390
250
Maximum Temperature: Mechanical, °C 180
460
Melting Completion (Liquidus), °C 640
1470
Melting Onset (Solidus), °C 610
1430
Specific Heat Capacity, J/kg-K 890
470
Thermal Conductivity, W/m-K 140
39
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 110
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
3.9
Density, g/cm3 2.8
7.9
Embodied Carbon, kg CO2/kg material 8.4
1.8
Embodied Energy, MJ/kg 150
23
Embodied Water, L/kg 1170
59

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 18 to 20
110
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 130
420
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
24
Strength to Weight: Axial, points 24 to 26
22
Strength to Weight: Bending, points 31 to 32
20
Thermal Diffusivity, mm2/s 55
11
Thermal Shock Resistance, points 11
18

Alloy Composition

Aluminum (Al), % 92.3 to 98.6
0.010 to 0.040
Carbon (C), % 0
0.1 to 0.15
Chromium (Cr), % 0 to 0.4
2.0 to 2.5
Copper (Cu), % 0 to 0.2
0 to 0.25
Iron (Fe), % 0 to 0.8
94.5 to 96.7
Magnesium (Mg), % 1.4 to 1.8
0
Manganese (Mn), % 0 to 0.6
0.3 to 0.8
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0
0 to 0.3
Nitrogen (N), % 0
0 to 0.012
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0 to 0.2
0 to 0.3
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 3.3
0
Residuals, % 0 to 0.15
0