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CC481K Bronze vs. C87400 Brass

Both CC481K bronze and C87400 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 83% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is CC481K bronze and the bottom bar is C87400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 4.5
21
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 40
41
Tensile Strength: Ultimate (UTS), MPa 350
390
Tensile Strength: Yield (Proof), MPa 180
160

Thermal Properties

Latent Heat of Fusion, J/g 190
250
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 1000
920
Melting Onset (Solidus), °C 880
820
Specific Heat Capacity, J/kg-K 370
400
Thermal Conductivity, W/m-K 64
28
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
6.7
Electrical Conductivity: Equal Weight (Specific), % IACS 10
7.2

Otherwise Unclassified Properties

Base Metal Price, % relative 35
27
Density, g/cm3 8.7
8.3
Embodied Carbon, kg CO2/kg material 3.7
2.7
Embodied Energy, MJ/kg 60
44
Embodied Water, L/kg 390
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13
65
Resilience: Unit (Modulus of Resilience), kJ/m3 150
120
Stiffness to Weight: Axial, points 6.9
7.4
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 11
13
Strength to Weight: Bending, points 13
14
Thermal Diffusivity, mm2/s 20
8.3
Thermal Shock Resistance, points 13
14

Alloy Composition

Aluminum (Al), % 0 to 0.010
0 to 0.8
Antimony (Sb), % 0 to 0.050
0
Copper (Cu), % 87 to 89.5
79 to 85.5
Iron (Fe), % 0 to 0.1
0
Lead (Pb), % 0 to 0.25
0 to 1.0
Manganese (Mn), % 0 to 0.050
0
Nickel (Ni), % 0 to 0.1
0
Phosphorus (P), % 0 to 1.0
0
Silicon (Si), % 0 to 0.010
2.5 to 4.0
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 10 to 11.5
0
Zinc (Zn), % 0 to 0.5
12 to 16
Residuals, % 0
0 to 0.8