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C85200 Brass vs. C89320 Bronze

Both C85200 brass and C89320 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 75% of their average alloy composition in common.

For each property being compared, the top bar is C85200 brass and the bottom bar is C89320 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 28
17
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 270
270
Tensile Strength: Yield (Proof), MPa 95
140

Thermal Properties

Latent Heat of Fusion, J/g 180
190
Maximum Temperature: Mechanical, °C 140
180
Melting Completion (Liquidus), °C 940
1050
Melting Onset (Solidus), °C 930
930
Specific Heat Capacity, J/kg-K 380
360
Thermal Conductivity, W/m-K 84
56
Thermal Expansion, µm/m-K 20
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 18
15
Electrical Conductivity: Equal Weight (Specific), % IACS 19
15

Otherwise Unclassified Properties

Base Metal Price, % relative 26
37
Density, g/cm3 8.4
8.9
Embodied Carbon, kg CO2/kg material 2.8
3.5
Embodied Energy, MJ/kg 46
56
Embodied Water, L/kg 330
490

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 59
38
Resilience: Unit (Modulus of Resilience), kJ/m3 42
93
Stiffness to Weight: Axial, points 7.0
6.8
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 8.9
8.5
Strength to Weight: Bending, points 11
10
Thermal Diffusivity, mm2/s 27
17
Thermal Shock Resistance, points 9.3
10

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.0050
Antimony (Sb), % 0 to 0.2
0 to 0.35
Bismuth (Bi), % 0
4.0 to 6.0
Copper (Cu), % 70 to 74
87 to 91
Iron (Fe), % 0 to 0.6
0 to 0.2
Lead (Pb), % 1.5 to 3.8
0 to 0.090
Nickel (Ni), % 0 to 1.0
0 to 1.0
Phosphorus (P), % 0 to 0.020
0 to 0.3
Silicon (Si), % 0 to 0.050
0 to 0.0050
Sulfur (S), % 0 to 0.050
0 to 0.080
Tin (Sn), % 0.7 to 2.0
5.0 to 7.0
Zinc (Zn), % 20 to 27
0 to 1.0
Residuals, % 0
0 to 0.5