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C87900 Brass vs. ASTM A228 Music Wire

C87900 brass 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 C87900 brass and the bottom bar is ASTM A228 music wire.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 25
12
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 41
72
Tensile Strength: Ultimate (UTS), MPa 480
2450
Tensile Strength: Yield (Proof), MPa 240
2050

Thermal Properties

Latent Heat of Fusion, J/g 190
250
Maximum Temperature: Mechanical, °C 130
400
Melting Completion (Liquidus), °C 930
1450
Melting Onset (Solidus), °C 900
1410
Specific Heat Capacity, J/kg-K 390
470
Thermal Conductivity, W/m-K 120
49
Thermal Expansion, µm/m-K 20
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 17
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 24
1.8
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 2.7
1.4
Embodied Energy, MJ/kg 46
19
Embodied Water, L/kg 320
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
280
Stiffness to Weight: Axial, points 7.3
13
Stiffness to Weight: Bending, points 20
24
Strength to Weight: Axial, points 17
87
Strength to Weight: Bending, points 17
52
Thermal Diffusivity, mm2/s 37
13
Thermal Shock Resistance, points 16
79

Alloy Composition

Aluminum (Al), % 0 to 0.15
0
Antimony (Sb), % 0 to 0.050
0
Arsenic (As), % 0 to 0.050
0
Carbon (C), % 0
0.7 to 1.0
Copper (Cu), % 63 to 69.2
0
Iron (Fe), % 0 to 0.4
98 to 99
Lead (Pb), % 0 to 0.25
0
Manganese (Mn), % 0 to 0.15
0.2 to 0.6
Nickel (Ni), % 0 to 0.5
0
Phosphorus (P), % 0 to 0.010
0 to 0.025
Silicon (Si), % 0.8 to 1.2
0.1 to 0.3
Sulfur (S), % 0 to 0.050
0 to 0.030
Tin (Sn), % 0 to 0.25
0
Zinc (Zn), % 30 to 36
0