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ASTM A228 Music Wire vs. C95700 Bronze

ASTM A228 music wire belongs to the iron alloys classification, while C95700 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 C95700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
130
Elongation at Break, % 12
23
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 72
47
Tensile Strength: Ultimate (UTS), MPa 2450
680
Tensile Strength: Yield (Proof), MPa 2050
310

Thermal Properties

Latent Heat of Fusion, J/g 250
230
Maximum Temperature: Mechanical, °C 400
220
Melting Completion (Liquidus), °C 1450
990
Melting Onset (Solidus), °C 1410
950
Specific Heat Capacity, J/kg-K 470
440
Thermal Conductivity, W/m-K 49
12
Thermal Expansion, µm/m-K 12
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
26
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 1.4
3.3
Embodied Energy, MJ/kg 19
54
Embodied Water, L/kg 45
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
130
Stiffness to Weight: Axial, points 13
8.5
Stiffness to Weight: Bending, points 24
20
Strength to Weight: Axial, points 87
23
Strength to Weight: Bending, points 52
21
Thermal Diffusivity, mm2/s 13
3.3
Thermal Shock Resistance, points 79
21

Alloy Composition

Aluminum (Al), % 0
7.0 to 8.5
Carbon (C), % 0.7 to 1.0
0
Copper (Cu), % 0
71 to 78.5
Iron (Fe), % 98 to 99
2.0 to 4.0
Lead (Pb), % 0
0 to 0.030
Manganese (Mn), % 0.2 to 0.6
11 to 14
Nickel (Ni), % 0
1.5 to 3.0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.1 to 0.3
0 to 0.1
Sulfur (S), % 0 to 0.030
0
Residuals, % 0
0 to 0.5