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C81400 Copper vs. ASTM A228 Music Wire

C81400 copper belongs to the copper alloys classification, while ASTM A228 music wire belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C81400 copper and the bottom bar is ASTM A228 music wire.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 11
12
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 41
72
Tensile Strength: Ultimate (UTS), MPa 370
2450
Tensile Strength: Yield (Proof), MPa 250
2050

Thermal Properties

Latent Heat of Fusion, J/g 210
250
Maximum Temperature: Mechanical, °C 200
400
Melting Completion (Liquidus), °C 1090
1450
Melting Onset (Solidus), °C 1070
1410
Specific Heat Capacity, J/kg-K 390
470
Thermal Conductivity, W/m-K 260
49
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 61
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 33
1.8
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 2.8
1.4
Embodied Energy, MJ/kg 45
19
Embodied Water, L/kg 310
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36
280
Stiffness to Weight: Axial, points 7.3
13
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 11
87
Strength to Weight: Bending, points 13
52
Thermal Diffusivity, mm2/s 75
13
Thermal Shock Resistance, points 13
79

Alloy Composition

Beryllium (Be), % 0.020 to 0.1
0
Carbon (C), % 0
0.7 to 1.0
Chromium (Cr), % 0.6 to 1.0
0
Copper (Cu), % 98.4 to 99.38
0
Iron (Fe), % 0
98 to 99
Manganese (Mn), % 0
0.2 to 0.6
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0.1 to 0.3
Sulfur (S), % 0
0 to 0.030
Residuals, % 0 to 0.5
0