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CC331G Bronze vs. CC752S Brass

Both CC331G bronze and CC752S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 64% of their average alloy composition in common.

For each property being compared, the top bar is CC331G bronze and the bottom bar is CC752S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
100
Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 20
8.4
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 43
40
Tensile Strength: Ultimate (UTS), MPa 620
350
Tensile Strength: Yield (Proof), MPa 240
190

Thermal Properties

Latent Heat of Fusion, J/g 230
170
Maximum Temperature: Mechanical, °C 220
130
Melting Completion (Liquidus), °C 1060
840
Melting Onset (Solidus), °C 1000
800
Specific Heat Capacity, J/kg-K 440
380
Thermal Conductivity, W/m-K 61
110
Thermal Expansion, µm/m-K 18
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
25
Electrical Conductivity: Equal Weight (Specific), % IACS 14
28

Otherwise Unclassified Properties

Base Metal Price, % relative 28
24
Density, g/cm3 8.3
8.1
Embodied Carbon, kg CO2/kg material 3.2
2.7
Embodied Energy, MJ/kg 53
46
Embodied Water, L/kg 390
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 97
25
Resilience: Unit (Modulus of Resilience), kJ/m3 250
180
Stiffness to Weight: Axial, points 7.6
7.1
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 21
12
Strength to Weight: Bending, points 19
13
Thermal Diffusivity, mm2/s 17
35
Thermal Shock Resistance, points 22
12

Alloy Composition

Aluminum (Al), % 8.5 to 10.5
0.3 to 0.7
Antimony (Sb), % 0
0 to 0.14
Arsenic (As), % 0
0.040 to 0.14
Copper (Cu), % 83 to 86.5
61.5 to 64.5
Iron (Fe), % 1.5 to 3.5
0 to 0.3
Lead (Pb), % 0 to 0.1
1.5 to 2.2
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 1.0
0 to 0.1
Nickel (Ni), % 0 to 1.5
0 to 0.2
Silicon (Si), % 0 to 0.2
0 to 0.020
Tin (Sn), % 0 to 0.2
0 to 0.3
Zinc (Zn), % 0 to 0.5
31.5 to 36.7