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C87600 Bronze vs. C85200 Brass

Both C87600 bronze and C85200 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 78% of their average alloy composition in common.

For each property being compared, the top bar is C87600 bronze and the bottom bar is C85200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 18
28
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 42
40
Tensile Strength: Ultimate (UTS), MPa 470
270
Tensile Strength: Yield (Proof), MPa 230
95

Thermal Properties

Latent Heat of Fusion, J/g 280
180
Maximum Temperature: Mechanical, °C 190
140
Melting Completion (Liquidus), °C 970
940
Melting Onset (Solidus), °C 860
930
Specific Heat Capacity, J/kg-K 410
380
Thermal Conductivity, W/m-K 28
84
Thermal Expansion, µm/m-K 17
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.0
18
Electrical Conductivity: Equal Weight (Specific), % IACS 6.4
19

Otherwise Unclassified Properties

Base Metal Price, % relative 29
26
Density, g/cm3 8.5
8.4
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 43
46
Embodied Water, L/kg 300
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71
59
Resilience: Unit (Modulus of Resilience), kJ/m3 240
42
Stiffness to Weight: Axial, points 7.4
7.0
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 16
8.9
Strength to Weight: Bending, points 16
11
Thermal Diffusivity, mm2/s 8.1
27
Thermal Shock Resistance, points 17
9.3

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.2
Copper (Cu), % 88 to 92.5
70 to 74
Iron (Fe), % 0
0 to 0.6
Lead (Pb), % 0 to 0.5
1.5 to 3.8
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 3.5 to 5.5
0 to 0.050
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
0.7 to 2.0
Zinc (Zn), % 4.0 to 7.0
20 to 27
Residuals, % 0
0 to 0.9