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ASTM A228 Music Wire vs. A356.0 Aluminum

ASTM A228 music wire belongs to the iron alloys classification, while A356.0 aluminum belongs to the aluminum alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, 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 A356.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
70
Elongation at Break, % 12
3.0 to 6.0
Fatigue Strength, MPa 1280
50 to 90
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 72
26
Tensile Strength: Ultimate (UTS), MPa 2450
160 to 270
Tensile Strength: Yield (Proof), MPa 2050
83 to 200

Thermal Properties

Latent Heat of Fusion, J/g 250
500
Maximum Temperature: Mechanical, °C 400
170
Melting Completion (Liquidus), °C 1450
610
Melting Onset (Solidus), °C 1410
570
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 49
150
Thermal Expansion, µm/m-K 12
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
40
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
140

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
9.5
Density, g/cm3 7.8
2.6
Embodied Carbon, kg CO2/kg material 1.4
8.0
Embodied Energy, MJ/kg 19
150
Embodied Water, L/kg 45
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
4.8 to 15
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
53
Strength to Weight: Axial, points 87
17 to 29
Strength to Weight: Bending, points 52
25 to 36
Thermal Diffusivity, mm2/s 13
64
Thermal Shock Resistance, points 79
7.6 to 13

Alloy Composition

Aluminum (Al), % 0
91.1 to 93.3
Carbon (C), % 0.7 to 1.0
0
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 98 to 99
0 to 0.2
Magnesium (Mg), % 0
0.25 to 0.45
Manganese (Mn), % 0.2 to 0.6
0 to 0.1
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.1 to 0.3
6.5 to 7.5
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15