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ASTM A228 Music Wire vs. C87600 Bronze

ASTM A228 music wire belongs to the iron alloys classification, while C87600 bronze belongs to the copper alloys. There are 27 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM A228 music wire and the bottom bar is C87600 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 12
18
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 72
42
Tensile Strength: Ultimate (UTS), MPa 2450
470
Tensile Strength: Yield (Proof), MPa 2050
230

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
190
Melting Completion (Liquidus), °C 1450
970
Melting Onset (Solidus), °C 1410
860
Specific Heat Capacity, J/kg-K 470
410
Thermal Conductivity, W/m-K 49
28
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
6.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
6.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
29
Density, g/cm3 7.8
8.5
Embodied Carbon, kg CO2/kg material 1.4
2.7
Embodied Energy, MJ/kg 19
43
Embodied Water, L/kg 45
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
71
Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 87
16
Strength to Weight: Bending, points 52
16
Thermal Diffusivity, mm2/s 13
8.1
Thermal Shock Resistance, points 79
17

Alloy Composition

Carbon (C), % 0.7 to 1.0
0
Copper (Cu), % 0
88 to 92.5
Iron (Fe), % 98 to 99
0
Lead (Pb), % 0
0 to 0.5
Manganese (Mn), % 0.2 to 0.6
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.1 to 0.3
3.5 to 5.5
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
4.0 to 7.0
Residuals, % 0
0 to 0.5