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C92900 Bronze vs. C83300 Brass

Both C92900 bronze and C83300 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 87% of their average alloy composition in common.

For each property being compared, the top bar is C92900 bronze and the bottom bar is C83300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 84
35
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 9.1
35
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 40
42
Tensile Strength: Ultimate (UTS), MPa 350
220
Tensile Strength: Yield (Proof), MPa 190
69

Thermal Properties

Latent Heat of Fusion, J/g 190
200
Maximum Temperature: Mechanical, °C 170
180
Melting Completion (Liquidus), °C 1030
1060
Melting Onset (Solidus), °C 860
1030
Specific Heat Capacity, J/kg-K 370
380
Thermal Conductivity, W/m-K 58
160
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
32
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
33

Otherwise Unclassified Properties

Base Metal Price, % relative 35
30
Density, g/cm3 8.8
8.8
Embodied Carbon, kg CO2/kg material 3.8
2.7
Embodied Energy, MJ/kg 61
44
Embodied Water, L/kg 390
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
60
Resilience: Unit (Modulus of Resilience), kJ/m3 170
21
Stiffness to Weight: Axial, points 6.8
7.0
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 11
6.9
Strength to Weight: Bending, points 13
9.2
Thermal Diffusivity, mm2/s 18
48
Thermal Shock Resistance, points 13
7.9

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.25
0
Copper (Cu), % 82 to 86
92 to 94
Iron (Fe), % 0 to 0.2
0
Lead (Pb), % 2.0 to 3.2
1.0 to 2.0
Nickel (Ni), % 2.8 to 4.0
0
Phosphorus (P), % 0 to 1.5
0
Silicon (Si), % 0 to 0.0050
0
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 9.0 to 11
1.0 to 2.0
Zinc (Zn), % 0 to 0.25
2.0 to 6.0
Residuals, % 0
0 to 0.7