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3004 Aluminum vs. ASTM A369 Grade FP91

3004 aluminum belongs to the aluminum alloys classification, while ASTM A369 grade FP91 belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (2, 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 3004 aluminum and the bottom bar is ASTM A369 grade FP91.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 45 to 83
200
Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 1.1 to 19
19
Fatigue Strength, MPa 55 to 120
320
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
75
Shear Strength, MPa 100 to 180
410
Tensile Strength: Ultimate (UTS), MPa 170 to 310
670
Tensile Strength: Yield (Proof), MPa 68 to 270
460

Thermal Properties

Latent Heat of Fusion, J/g 400
270
Maximum Temperature: Mechanical, °C 180
600
Melting Completion (Liquidus), °C 650
1460
Melting Onset (Solidus), °C 630
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 160
26
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
8.9
Electrical Conductivity: Equal Weight (Specific), % IACS 140
10

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
7.0
Density, g/cm3 2.8
7.8
Embodied Carbon, kg CO2/kg material 8.3
2.6
Embodied Energy, MJ/kg 150
37
Embodied Water, L/kg 1180
88

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.2 to 27
110
Resilience: Unit (Modulus of Resilience), kJ/m3 33 to 540
560
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 18 to 31
24
Strength to Weight: Bending, points 25 to 37
22
Thermal Diffusivity, mm2/s 65
6.9
Thermal Shock Resistance, points 7.6 to 13
18

Alloy Composition

Aluminum (Al), % 95.6 to 98.2
0 to 0.020
Carbon (C), % 0
0.080 to 0.12
Chromium (Cr), % 0
8.0 to 9.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 0 to 0.7
87.3 to 90.3
Magnesium (Mg), % 0.8 to 1.3
0
Manganese (Mn), % 1.0 to 1.5
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), % 0 to 0.3
0.2 to 0.5
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0
0 to 0.010
Vanadium (V), % 0
0.18 to 0.25
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0
0 to 0.010
Residuals, % 0 to 0.15
0