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ASTM A387 Grade 21L Class 1 vs. 514.0 Aluminum

ASTM A387 grade 21L class 1 belongs to the iron alloys classification, while 514.0 aluminum belongs to the aluminum 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 ASTM A387 grade 21L class 1 and the bottom bar is 514.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
50
Elastic (Young's, Tensile) Modulus, GPa 190
68
Elongation at Break, % 21
7.3
Fatigue Strength, MPa 160
48
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 74
25
Shear Strength, MPa 310
140
Tensile Strength: Ultimate (UTS), MPa 500
180
Tensile Strength: Yield (Proof), MPa 230
74

Thermal Properties

Latent Heat of Fusion, J/g 260
400
Maximum Temperature: Mechanical, °C 480
170
Melting Completion (Liquidus), °C 1470
640
Melting Onset (Solidus), °C 1430
610
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 41
140
Thermal Expansion, µm/m-K 13
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
35
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
120

Otherwise Unclassified Properties

Base Metal Price, % relative 4.1
9.5
Density, g/cm3 7.9
2.7
Embodied Carbon, kg CO2/kg material 1.8
8.9
Embodied Energy, MJ/kg 23
150
Embodied Water, L/kg 62
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84
11
Resilience: Unit (Modulus of Resilience), kJ/m3 140
41
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
51
Strength to Weight: Axial, points 18
19
Strength to Weight: Bending, points 18
26
Thermal Diffusivity, mm2/s 11
57
Thermal Shock Resistance, points 14
7.9

Alloy Composition

Aluminum (Al), % 0
93.6 to 96.5
Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 2.8 to 3.3
0
Copper (Cu), % 0
0 to 0.15
Iron (Fe), % 94.4 to 96.1
0 to 0.5
Magnesium (Mg), % 0
3.5 to 4.5
Manganese (Mn), % 0.3 to 0.6
0 to 0.35
Molybdenum (Mo), % 0.9 to 1.1
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.5
0 to 0.35
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.15
Residuals, % 0
0 to 0.15