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EN 1.7703 Steel vs. 535.0 Aluminum

EN 1.7703 steel belongs to the iron alloys classification, while 535.0 aluminum belongs to the aluminum alloys. There are 31 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 EN 1.7703 steel and the bottom bar is 535.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
70
Elastic (Young's, Tensile) Modulus, GPa 190
67
Elongation at Break, % 20
10
Fatigue Strength, MPa 320 to 340
70
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 74
25
Shear Strength, MPa 420 to 430
190
Tensile Strength: Ultimate (UTS), MPa 670 to 690
270
Tensile Strength: Yield (Proof), MPa 460 to 500
140

Thermal Properties

Latent Heat of Fusion, J/g 250
390
Maximum Temperature: Mechanical, °C 460
170
Melting Completion (Liquidus), °C 1470
630
Melting Onset (Solidus), °C 1430
570
Specific Heat Capacity, J/kg-K 470
910
Thermal Conductivity, W/m-K 39
100
Thermal Expansion, µm/m-K 13
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
23
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
79

Otherwise Unclassified Properties

Base Metal Price, % relative 4.2
9.5
Density, g/cm3 7.9
2.6
Embodied Carbon, kg CO2/kg material 2.5
9.4
Embodied Energy, MJ/kg 35
160
Embodied Water, L/kg 61
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 130
24
Resilience: Unit (Modulus of Resilience), kJ/m3 570 to 650
150
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
51
Strength to Weight: Axial, points 24
28
Strength to Weight: Bending, points 22
35
Thermal Diffusivity, mm2/s 11
42
Thermal Shock Resistance, points 19 to 20
12

Alloy Composition

Aluminum (Al), % 0
91.5 to 93.6
Beryllium (Be), % 0
0.0030 to 0.0070
Boron (B), % 0
0 to 0.0050
Carbon (C), % 0.11 to 0.15
0
Chromium (Cr), % 2.0 to 2.5
0
Copper (Cu), % 0 to 0.2
0 to 0.050
Iron (Fe), % 94.6 to 96.4
0 to 0.15
Magnesium (Mg), % 0
6.2 to 7.5
Manganese (Mn), % 0.3 to 0.6
0.1 to 0.25
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0 to 0.25
0
Niobium (Nb), % 0 to 0.070
0
Nitrogen (N), % 0 to 0.012
0
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0 to 0.1
0 to 0.15
Sulfur (S), % 0 to 0.0050
0
Titanium (Ti), % 0 to 0.030
0.1 to 0.25
Vanadium (V), % 0.25 to 0.35
0
Residuals, % 0
0 to 0.15