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ASTM A228 Music Wire vs. C18700 Copper

ASTM A228 music wire belongs to the iron alloys classification, while C18700 copper 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 C18700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 12
9.0 to 9.6
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 72
43
Shear Strength, MPa 1470
170 to 190
Tensile Strength: Ultimate (UTS), MPa 2450
290 to 330
Tensile Strength: Yield (Proof), MPa 2050
230 to 250

Thermal Properties

Latent Heat of Fusion, J/g 250
210
Maximum Temperature: Mechanical, °C 400
200
Melting Completion (Liquidus), °C 1450
1080
Melting Onset (Solidus), °C 1410
950
Specific Heat Capacity, J/kg-K 470
380
Thermal Conductivity, W/m-K 49
380
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
98
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
99

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
30
Density, g/cm3 7.8
9.0
Embodied Carbon, kg CO2/kg material 1.4
2.6
Embodied Energy, MJ/kg 19
41
Embodied Water, L/kg 45
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
24 to 29
Stiffness to Weight: Axial, points 13
7.1
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 87
9.0 to 10
Strength to Weight: Bending, points 52
11 to 12
Thermal Diffusivity, mm2/s 13
110
Thermal Shock Resistance, points 79
10 to 12

Alloy Composition

Carbon (C), % 0.7 to 1.0
0
Copper (Cu), % 0
98 to 99.2
Iron (Fe), % 98 to 99
0
Lead (Pb), % 0
0.8 to 1.5
Manganese (Mn), % 0.2 to 0.6
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.1 to 0.3
0
Sulfur (S), % 0 to 0.030
0
Residuals, % 0
0 to 0.5