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EN AC-71100 Aluminum vs. ASTM A369 Grade FP91

EN AC-71100 aluminum belongs to the aluminum alloys classification, while ASTM A369 grade FP91 belongs to the iron alloys. There are 28 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 EN AC-71100 aluminum and the bottom bar is ASTM A369 grade FP91.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
200
Elastic (Young's, Tensile) Modulus, GPa 72
190
Elongation at Break, % 1.1
19
Fatigue Strength, MPa 150
320
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 27
75
Tensile Strength: Ultimate (UTS), MPa 260
670
Tensile Strength: Yield (Proof), MPa 230
460

Thermal Properties

Latent Heat of Fusion, J/g 490
270
Maximum Temperature: Mechanical, °C 170
600
Melting Completion (Liquidus), °C 580
1460
Melting Onset (Solidus), °C 520
1420
Specific Heat Capacity, J/kg-K 860
470
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
8.9
Electrical Conductivity: Equal Weight (Specific), % IACS 97
10

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
7.0
Density, g/cm3 2.9
7.8
Embodied Carbon, kg CO2/kg material 7.4
2.6
Embodied Energy, MJ/kg 140
37
Embodied Water, L/kg 1010
88

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.8
110
Resilience: Unit (Modulus of Resilience), kJ/m3 360
560
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 47
25
Strength to Weight: Axial, points 25
24
Strength to Weight: Bending, points 31
22
Thermal Shock Resistance, points 12
18

Alloy Composition

Aluminum (Al), % 78.7 to 83.3
0 to 0.020
Carbon (C), % 0
0.080 to 0.12
Chromium (Cr), % 0
8.0 to 9.5
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.3
87.3 to 90.3
Magnesium (Mg), % 0.2 to 0.5
0
Manganese (Mn), % 0 to 0.15
0.3 to 0.6
Molybdenum (Mo), % 0
0.85 to 1.1
Nickel (Ni), % 0
0 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0
0.030 to 0.070
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 7.5 to 9.5
0.2 to 0.5
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0 to 0.15
0 to 0.010
Vanadium (V), % 0
0.18 to 0.25
Zinc (Zn), % 9.0 to 10.5
0
Zirconium (Zr), % 0
0 to 0.010
Residuals, % 0 to 0.15
0