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ASTM A228 Music Wire vs. A201.0 Aluminum

ASTM A228 music wire belongs to the iron alloys classification, while A201.0 aluminum belongs to the aluminum alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, 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 A201.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
71
Elongation at Break, % 12
4.7
Fatigue Strength, MPa 1280
97
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 72
27
Tensile Strength: Ultimate (UTS), MPa 2450
480
Tensile Strength: Yield (Proof), MPa 2050
420

Thermal Properties

Latent Heat of Fusion, J/g 250
390
Maximum Temperature: Mechanical, °C 400
170
Melting Completion (Liquidus), °C 1450
650
Melting Onset (Solidus), °C 1410
570
Specific Heat Capacity, J/kg-K 470
880
Thermal Conductivity, W/m-K 49
120
Thermal Expansion, µm/m-K 12
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
30
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
90

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
11
Density, g/cm3 7.8
3.0
Embodied Carbon, kg CO2/kg material 1.4
8.1
Embodied Energy, MJ/kg 19
150
Embodied Water, L/kg 45
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
22
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
46
Strength to Weight: Axial, points 87
44
Strength to Weight: Bending, points 52
45
Thermal Diffusivity, mm2/s 13
46
Thermal Shock Resistance, points 79
21

Alloy Composition

Aluminum (Al), % 0
93.7 to 95.5
Carbon (C), % 0.7 to 1.0
0
Copper (Cu), % 0
4.0 to 5.0
Iron (Fe), % 98 to 99
0 to 0.1
Magnesium (Mg), % 0
0.15 to 0.35
Manganese (Mn), % 0.2 to 0.6
0.2 to 0.4
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.1 to 0.3
0 to 0.050
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0.15 to 0.35
Residuals, % 0
0 to 0.1