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CC751S Brass vs. C90400 Bronze

Both CC751S brass and C90400 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 68% of their average alloy composition in common.

For each property being compared, the top bar is CC751S brass and the bottom bar is C90400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130
77
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 5.6
24
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 40
41
Tensile Strength: Ultimate (UTS), MPa 450
310
Tensile Strength: Yield (Proof), MPa 320
180

Thermal Properties

Latent Heat of Fusion, J/g 190
190
Maximum Temperature: Mechanical, °C 130
170
Melting Completion (Liquidus), °C 850
990
Melting Onset (Solidus), °C 810
850
Specific Heat Capacity, J/kg-K 390
370
Thermal Conductivity, W/m-K 110
75
Thermal Expansion, µm/m-K 20
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
12
Electrical Conductivity: Equal Weight (Specific), % IACS 28
12

Otherwise Unclassified Properties

Base Metal Price, % relative 24
34
Density, g/cm3 8.1
8.7
Embodied Carbon, kg CO2/kg material 2.8
3.5
Embodied Energy, MJ/kg 46
56
Embodied Water, L/kg 330
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23
65
Resilience: Unit (Modulus of Resilience), kJ/m3 480
150
Stiffness to Weight: Axial, points 7.2
7.0
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 15
10
Strength to Weight: Bending, points 16
12
Thermal Diffusivity, mm2/s 35
23
Thermal Shock Resistance, points 15
11

Alloy Composition


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Aluminum (Al), % 0 to 0.1
0 to 0.0050
Antimony (Sb), % 0 to 0.5
0 to 0.020
Boron (B), % 0
0 to 0.1
Copper (Cu), % 62.7 to 66
86 to 89
Iron (Fe), % 0.25 to 0.5
0 to 0.4
Lead (Pb), % 0.8 to 2.2
0 to 0.090
Manganese (Mn), % 0 to 0.15
0 to 0.010
Nickel (Ni), % 0 to 0.8
0 to 1.0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0.65 to 1.1
0 to 0.0050
Sulfur (S), % 0
0.1 to 0.65
Tin (Sn), % 0 to 0.8
7.5 to 8.5
Zinc (Zn), % 27.9 to 35.6
1.0 to 5.0
Zirconium (Zr), % 0
0 to 0.1
Residuals, % 0
0 to 0.7