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C92500 Bronze vs. C85700 Brass

Both C92500 bronze and C85700 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 64% of their average alloy composition in common.

For each property being compared, the top bar is C92500 bronze and the bottom bar is C85700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 11
17
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 310
310
Tensile Strength: Yield (Proof), MPa 190
110

Thermal Properties

Latent Heat of Fusion, J/g 190
170
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 980
940
Melting Onset (Solidus), °C 870
910
Specific Heat Capacity, J/kg-K 370
380
Thermal Conductivity, W/m-K 63
84
Thermal Expansion, µm/m-K 18
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
22
Electrical Conductivity: Equal Weight (Specific), % IACS 12
25

Otherwise Unclassified Properties

Base Metal Price, % relative 35
24
Density, g/cm3 8.7
8.0
Embodied Carbon, kg CO2/kg material 3.7
2.8
Embodied Energy, MJ/kg 61
47
Embodied Water, L/kg 390
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30
41
Resilience: Unit (Modulus of Resilience), kJ/m3 170
59
Stiffness to Weight: Axial, points 6.8
7.2
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 9.8
11
Strength to Weight: Bending, points 12
13
Thermal Diffusivity, mm2/s 20
27
Thermal Shock Resistance, points 12
10

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.8
Antimony (Sb), % 0 to 0.25
0
Copper (Cu), % 85 to 88
58 to 64
Iron (Fe), % 0 to 0.3
0 to 0.7
Lead (Pb), % 1.0 to 1.5
0.8 to 1.5
Nickel (Ni), % 0.8 to 1.5
0 to 1.0
Phosphorus (P), % 0 to 1.5
0
Silicon (Si), % 0 to 0.0050
0 to 0.050
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 10 to 12
0.5 to 1.5
Zinc (Zn), % 0 to 0.5
32 to 40
Residuals, % 0
0 to 1.3