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C87900 Brass vs. C86300 Bronze

Both C87900 brass and C86300 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 89% of their average alloy composition in common. 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 C87900 brass and the bottom bar is C86300 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 25
14
Poisson's Ratio 0.31
0.32
Shear Modulus, GPa 41
42
Tensile Strength: Ultimate (UTS), MPa 480
850
Tensile Strength: Yield (Proof), MPa 240
480

Thermal Properties

Latent Heat of Fusion, J/g 190
200
Maximum Temperature: Mechanical, °C 130
160
Melting Completion (Liquidus), °C 930
920
Melting Onset (Solidus), °C 900
890
Specific Heat Capacity, J/kg-K 390
420
Thermal Conductivity, W/m-K 120
35
Thermal Expansion, µm/m-K 20
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 17
9.2

Otherwise Unclassified Properties

Base Metal Price, % relative 24
23
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 2.7
3.0
Embodied Energy, MJ/kg 46
51
Embodied Water, L/kg 320
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
100
Resilience: Unit (Modulus of Resilience), kJ/m3 270
1030
Stiffness to Weight: Axial, points 7.3
7.8
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 17
30
Strength to Weight: Bending, points 17
25
Thermal Diffusivity, mm2/s 37
11
Thermal Shock Resistance, points 16
28

Alloy Composition

Aluminum (Al), % 0 to 0.15
5.0 to 7.5
Antimony (Sb), % 0 to 0.050
0
Arsenic (As), % 0 to 0.050
0
Copper (Cu), % 63 to 69.2
60 to 66
Iron (Fe), % 0 to 0.4
2.0 to 4.0
Lead (Pb), % 0 to 0.25
0 to 0.2
Manganese (Mn), % 0 to 0.15
2.5 to 5.0
Nickel (Ni), % 0 to 0.5
0 to 1.0
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0.8 to 1.2
0
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 0 to 0.25
0 to 0.2
Zinc (Zn), % 30 to 36
22 to 28
Residuals, % 0
0 to 1.0