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EN 1.7711 Steel vs. 5252 Aluminum

EN 1.7711 steel belongs to the iron alloys classification, while 5252 aluminum belongs to the aluminum alloys. There are 31 material properties with values for both materials. Properties with values for just one material (1, 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 1.7711 steel and the bottom bar is 5252 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 280
68 to 75
Elastic (Young's, Tensile) Modulus, GPa 190
68
Elongation at Break, % 16 to 22
4.5 to 11
Fatigue Strength, MPa 290 to 520
100 to 110
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
25
Shear Strength, MPa 440 to 570
140 to 160
Tensile Strength: Ultimate (UTS), MPa 690 to 930
230 to 290
Tensile Strength: Yield (Proof), MPa 400 to 800
170 to 240

Thermal Properties

Latent Heat of Fusion, J/g 250
400
Maximum Temperature: Mechanical, °C 430
180
Melting Completion (Liquidus), °C 1460
650
Melting Onset (Solidus), °C 1420
610
Specific Heat Capacity, J/kg-K 470
910
Thermal Conductivity, W/m-K 33
140
Thermal Expansion, µm/m-K 11
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
34
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
120

Otherwise Unclassified Properties

Base Metal Price, % relative 3.0
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 2.3
8.7
Embodied Energy, MJ/kg 32
160
Embodied Water, L/kg 54
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 140
12 to 23
Resilience: Unit (Modulus of Resilience), kJ/m3 430 to 1690
210 to 430
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
51
Strength to Weight: Axial, points 24 to 33
23 to 30
Strength to Weight: Bending, points 22 to 27
31 to 36
Thermal Diffusivity, mm2/s 8.9
57
Thermal Shock Resistance, points 24 to 32
10 to 13

Alloy Composition

Aluminum (Al), % 0 to 0.015
96.6 to 97.8
Carbon (C), % 0.36 to 0.44
0
Chromium (Cr), % 0.9 to 1.2
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 96 to 97.5
0 to 0.1
Magnesium (Mg), % 0
2.2 to 2.8
Manganese (Mn), % 0.45 to 0.85
0 to 0.1
Molybdenum (Mo), % 0.5 to 0.65
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.4
0 to 0.080
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 0.25 to 0.35
0 to 0.050
Zinc (Zn), % 0
0 to 0.050
Residuals, % 0
0 to 0.1