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ASTM A228 Music Wire vs. C95520 Bronze

ASTM A228 music wire belongs to the iron alloys classification, while C95520 bronze belongs to the copper 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.

For each property being compared, the top bar is ASTM A228 music wire and the bottom bar is C95520 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 710
280
Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 12
2.6
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 72
44
Tensile Strength: Ultimate (UTS), MPa 2450
970
Tensile Strength: Yield (Proof), MPa 2050
530

Thermal Properties

Latent Heat of Fusion, J/g 250
240
Maximum Temperature: Mechanical, °C 400
240
Melting Completion (Liquidus), °C 1450
1070
Melting Onset (Solidus), °C 1410
1020
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 49
40
Thermal Expansion, µm/m-K 12
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
11
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
12

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
29
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 1.4
3.6
Embodied Energy, MJ/kg 19
58
Embodied Water, L/kg 45
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
21
Stiffness to Weight: Axial, points 13
8.0
Stiffness to Weight: Bending, points 24
20
Strength to Weight: Axial, points 87
33
Strength to Weight: Bending, points 52
27
Thermal Diffusivity, mm2/s 13
11
Thermal Shock Resistance, points 79
33

Alloy Composition

Aluminum (Al), % 0
10.5 to 11.5
Carbon (C), % 0.7 to 1.0
0
Chromium (Cr), % 0
0 to 0.050
Cobalt (Co), % 0
0 to 0.2
Copper (Cu), % 0
74.5 to 81.3
Iron (Fe), % 98 to 99
4.0 to 5.5
Lead (Pb), % 0
0 to 0.030
Manganese (Mn), % 0.2 to 0.6
0 to 1.5
Nickel (Ni), % 0
4.2 to 6.0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.1 to 0.3
0 to 0.15
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.3
Residuals, % 0
0 to 0.5