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C87900 Brass vs. C86800 Bronze

Both C87900 brass and C86800 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 26 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 C86800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 25
22
Poisson's Ratio 0.31
0.31
Shear Modulus, GPa 41
42
Tensile Strength: Ultimate (UTS), MPa 480
570
Tensile Strength: Yield (Proof), MPa 240
260

Thermal Properties

Latent Heat of Fusion, J/g 190
180
Maximum Temperature: Mechanical, °C 130
140
Melting Completion (Liquidus), °C 930
900
Melting Onset (Solidus), °C 900
880
Specific Heat Capacity, J/kg-K 390
400
Thermal Expansion, µm/m-K 20
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 17
10

Otherwise Unclassified Properties

Base Metal Price, % relative 24
24
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 2.7
3.0
Embodied Energy, MJ/kg 46
51
Embodied Water, L/kg 320
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
100
Resilience: Unit (Modulus of Resilience), kJ/m3 270
310
Stiffness to Weight: Axial, points 7.3
7.7
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 17
20
Strength to Weight: Bending, points 17
19
Thermal Shock Resistance, points 16
18

Alloy Composition


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Aluminum (Al), % 0 to 0.15
0 to 2.0
Antimony (Sb), % 0 to 0.050
0
Arsenic (As), % 0 to 0.050
0
Copper (Cu), % 63 to 69.2
53.5 to 57
Iron (Fe), % 0 to 0.4
1.0 to 2.5
Lead (Pb), % 0 to 0.25
0 to 0.2
Manganese (Mn), % 0 to 0.15
2.5 to 4.0
Nickel (Ni), % 0 to 0.5
2.5 to 4.0
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 1.0
Zinc (Zn), % 30 to 36
28.3 to 40.5
Residuals, % 0
0 to 1.0