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ASTM A228 Music Wire vs. 4047 Aluminum

ASTM A228 music wire belongs to the iron alloys classification, while 4047 aluminum belongs to the aluminum alloys. There are 29 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 4047 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
72
Elongation at Break, % 12
3.4
Fatigue Strength, MPa 1280
45
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 72
27
Shear Strength, MPa 1470
69
Tensile Strength: Ultimate (UTS), MPa 2450
120
Tensile Strength: Yield (Proof), MPa 2050
64

Thermal Properties

Latent Heat of Fusion, J/g 250
570
Maximum Temperature: Mechanical, °C 400
160
Melting Completion (Liquidus), °C 1450
580
Melting Onset (Solidus), °C 1410
580
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 49
130
Thermal Expansion, µm/m-K 12
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
33
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
2.5
Embodied Carbon, kg CO2/kg material 1.4
7.7
Embodied Energy, MJ/kg 19
140
Embodied Water, L/kg 45
1050

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
3.5
Stiffness to Weight: Axial, points 13
16
Stiffness to Weight: Bending, points 24
55
Strength to Weight: Axial, points 87
13
Strength to Weight: Bending, points 52
21
Thermal Diffusivity, mm2/s 13
59
Thermal Shock Resistance, points 79
5.6

Alloy Composition

Aluminum (Al), % 0
85.3 to 89
Carbon (C), % 0.7 to 1.0
0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 98 to 99
0 to 0.8
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0.2 to 0.6
0 to 0.15
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.1 to 0.3
11 to 13
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15