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C92900 Bronze vs. CC751S Brass

Both C92900 bronze and CC751S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 67% of their average alloy composition in common.

For each property being compared, the top bar is C92900 bronze and the bottom bar is CC751S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 84
130
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 9.1
5.6
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 350
450
Tensile Strength: Yield (Proof), MPa 190
320

Thermal Properties

Latent Heat of Fusion, J/g 190
190
Maximum Temperature: Mechanical, °C 170
130
Melting Completion (Liquidus), °C 1030
850
Melting Onset (Solidus), °C 860
810
Specific Heat Capacity, J/kg-K 370
390
Thermal Conductivity, W/m-K 58
110
Thermal Expansion, µm/m-K 18
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
25
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
28

Otherwise Unclassified Properties

Base Metal Price, % relative 35
24
Density, g/cm3 8.8
8.1
Embodied Carbon, kg CO2/kg material 3.8
2.8
Embodied Energy, MJ/kg 61
46
Embodied Water, L/kg 390
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
23
Resilience: Unit (Modulus of Resilience), kJ/m3 170
480
Stiffness to Weight: Axial, points 6.8
7.2
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 11
15
Strength to Weight: Bending, points 13
16
Thermal Diffusivity, mm2/s 18
35
Thermal Shock Resistance, points 13
15

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.1
Antimony (Sb), % 0 to 0.25
0 to 0.5
Copper (Cu), % 82 to 86
62.7 to 66
Iron (Fe), % 0 to 0.2
0.25 to 0.5
Lead (Pb), % 2.0 to 3.2
0.8 to 2.2
Manganese (Mn), % 0
0 to 0.15
Nickel (Ni), % 2.8 to 4.0
0 to 0.8
Phosphorus (P), % 0 to 1.5
0
Silicon (Si), % 0 to 0.0050
0.65 to 1.1
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 9.0 to 11
0 to 0.8
Zinc (Zn), % 0 to 0.25
27.9 to 35.6
Residuals, % 0 to 0.7
0