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C89320 Bronze vs. C85700 Brass

Both C89320 bronze and C85700 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 63% of their average alloy composition in common.

For each property being compared, the top bar is C89320 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, % 17
17
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 270
310
Tensile Strength: Yield (Proof), MPa 140
110

Thermal Properties

Latent Heat of Fusion, J/g 190
170
Maximum Temperature: Mechanical, °C 180
120
Melting Completion (Liquidus), °C 1050
940
Melting Onset (Solidus), °C 930
910
Specific Heat Capacity, J/kg-K 360
380
Thermal Conductivity, W/m-K 56
84
Thermal Expansion, µm/m-K 17
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
22
Electrical Conductivity: Equal Weight (Specific), % IACS 15
25

Otherwise Unclassified Properties

Base Metal Price, % relative 37
24
Density, g/cm3 8.9
8.0
Embodied Carbon, kg CO2/kg material 3.5
2.8
Embodied Energy, MJ/kg 56
47
Embodied Water, L/kg 490
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38
41
Resilience: Unit (Modulus of Resilience), kJ/m3 93
59
Stiffness to Weight: Axial, points 6.8
7.2
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 8.5
11
Strength to Weight: Bending, points 10
13
Thermal Diffusivity, mm2/s 17
27
Thermal Shock Resistance, points 10
10

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.8
Antimony (Sb), % 0 to 0.35
0
Bismuth (Bi), % 4.0 to 6.0
0
Copper (Cu), % 87 to 91
58 to 64
Iron (Fe), % 0 to 0.2
0 to 0.7
Lead (Pb), % 0 to 0.090
0.8 to 1.5
Nickel (Ni), % 0 to 1.0
0 to 1.0
Phosphorus (P), % 0 to 0.3
0
Silicon (Si), % 0 to 0.0050
0 to 0.050
Sulfur (S), % 0 to 0.080
0
Tin (Sn), % 5.0 to 7.0
0.5 to 1.5
Zinc (Zn), % 0 to 1.0
32 to 40
Residuals, % 0
0 to 1.3