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C85200 Brass vs. C93500 Bronze

Both C85200 brass and C93500 bronze 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 C85200 brass and the bottom bar is C93500 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 28
15
Poisson's Ratio 0.32
0.35
Shear Modulus, GPa 40
38
Tensile Strength: Ultimate (UTS), MPa 270
220
Tensile Strength: Yield (Proof), MPa 95
110

Thermal Properties

Latent Heat of Fusion, J/g 180
180
Maximum Temperature: Mechanical, °C 140
160
Melting Completion (Liquidus), °C 940
1000
Melting Onset (Solidus), °C 930
850
Specific Heat Capacity, J/kg-K 380
360
Thermal Conductivity, W/m-K 84
70
Thermal Expansion, µm/m-K 20
18

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
31
Density, g/cm3 8.4
9.0
Embodied Carbon, kg CO2/kg material 2.8
3.0
Embodied Energy, MJ/kg 46
49
Embodied Water, L/kg 330
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 59
28
Resilience: Unit (Modulus of Resilience), kJ/m3 42
59
Stiffness to Weight: Axial, points 7.0
6.3
Stiffness to Weight: Bending, points 19
17
Strength to Weight: Axial, points 8.9
6.9
Strength to Weight: Bending, points 11
9.1
Thermal Diffusivity, mm2/s 27
22
Thermal Shock Resistance, points 9.3
8.5

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.0050
Antimony (Sb), % 0 to 0.2
0 to 0.3
Copper (Cu), % 70 to 74
83 to 86
Iron (Fe), % 0 to 0.6
0 to 0.2
Lead (Pb), % 1.5 to 3.8
8.0 to 10
Nickel (Ni), % 0 to 1.0
0 to 1.0
Phosphorus (P), % 0 to 0.020
0 to 1.5
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
4.3 to 6.0
Zinc (Zn), % 20 to 27
0 to 2.0
Residuals, % 0
0 to 1.0