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ASTM A228 Music Wire vs. 5021 Aluminum

ASTM A228 music wire belongs to the iron alloys classification, while 5021 aluminum belongs to the aluminum alloys. There are 29 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 A228 music wire and the bottom bar is 5021 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
68
Elongation at Break, % 12
1.1 to 3.4
Fatigue Strength, MPa 1280
85 to 110
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 72
26
Shear Strength, MPa 1470
170
Tensile Strength: Ultimate (UTS), MPa 2450
300 to 310
Tensile Strength: Yield (Proof), MPa 2050
240 to 270

Thermal Properties

Latent Heat of Fusion, J/g 250
400
Maximum Temperature: Mechanical, °C 400
180
Melting Completion (Liquidus), °C 1450
640
Melting Onset (Solidus), °C 1410
590
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 49
140
Thermal Expansion, µm/m-K 12
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
35
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
120

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 1.4
8.6
Embodied Energy, MJ/kg 19
150
Embodied Water, L/kg 45
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
3.1 to 10
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 87
30 to 32
Strength to Weight: Bending, points 52
37
Thermal Diffusivity, mm2/s 13
57
Thermal Shock Resistance, points 79
13 to 14

Alloy Composition

Aluminum (Al), % 0
95.2 to 97.7
Carbon (C), % 0.7 to 1.0
0
Chromium (Cr), % 0
0 to 0.15
Copper (Cu), % 0
0 to 0.15
Iron (Fe), % 98 to 99
0 to 0.5
Magnesium (Mg), % 0
2.2 to 2.8
Manganese (Mn), % 0.2 to 0.6
0.1 to 0.5
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.1 to 0.3
0 to 0.4
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
0 to 0.15
Residuals, % 0
0 to 0.15