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CC751S Brass vs. C94500 Bronze

Both CC751S brass and C94500 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 C94500 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130
50
Elastic (Young's, Tensile) Modulus, GPa 110
92
Elongation at Break, % 5.6
12
Poisson's Ratio 0.31
0.36
Shear Modulus, GPa 40
34
Tensile Strength: Ultimate (UTS), MPa 450
170
Tensile Strength: Yield (Proof), MPa 320
83

Thermal Properties

Latent Heat of Fusion, J/g 190
160
Maximum Temperature: Mechanical, °C 130
130
Melting Completion (Liquidus), °C 850
940
Melting Onset (Solidus), °C 810
800
Specific Heat Capacity, J/kg-K 390
330
Thermal Conductivity, W/m-K 110
52
Thermal Expansion, µm/m-K 20
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
10
Electrical Conductivity: Equal Weight (Specific), % IACS 28
9.7

Otherwise Unclassified Properties

Base Metal Price, % relative 24
30
Density, g/cm3 8.1
9.3
Embodied Carbon, kg CO2/kg material 2.8
3.2
Embodied Energy, MJ/kg 46
51
Embodied Water, L/kg 330
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23
17
Resilience: Unit (Modulus of Resilience), kJ/m3 480
37
Stiffness to Weight: Axial, points 7.2
5.5
Stiffness to Weight: Bending, points 19
16
Strength to Weight: Axial, points 15
5.2
Strength to Weight: Bending, points 16
7.4
Thermal Diffusivity, mm2/s 35
17
Thermal Shock Resistance, points 15
6.7

Alloy Composition

Aluminum (Al), % 0 to 0.1
0 to 0.0050
Antimony (Sb), % 0 to 0.5
0 to 0.8
Copper (Cu), % 62.7 to 66
66.7 to 78
Iron (Fe), % 0.25 to 0.5
0 to 0.15
Lead (Pb), % 0.8 to 2.2
16 to 22
Manganese (Mn), % 0 to 0.15
0
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 to 0.080
Tin (Sn), % 0 to 0.8
6.0 to 8.0
Zinc (Zn), % 27.9 to 35.6
0 to 1.2