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CC331G Bronze vs. C84000 Brass

Both CC331G bronze and C84000 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 86% of their average alloy composition in common.

For each property being compared, the top bar is CC331G bronze and the bottom bar is C84000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
65
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 20
27
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 43
42
Tensile Strength: Ultimate (UTS), MPa 620
250
Tensile Strength: Yield (Proof), MPa 240
140

Thermal Properties

Latent Heat of Fusion, J/g 230
190
Maximum Temperature: Mechanical, °C 220
170
Melting Completion (Liquidus), °C 1060
1040
Melting Onset (Solidus), °C 1000
940
Specific Heat Capacity, J/kg-K 440
380
Thermal Conductivity, W/m-K 61
72
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
16
Electrical Conductivity: Equal Weight (Specific), % IACS 14
17

Otherwise Unclassified Properties

Base Metal Price, % relative 28
30
Density, g/cm3 8.3
8.6
Embodied Carbon, kg CO2/kg material 3.2
3.0
Embodied Energy, MJ/kg 53
49
Embodied Water, L/kg 390
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 97
58
Resilience: Unit (Modulus of Resilience), kJ/m3 250
83
Stiffness to Weight: Axial, points 7.6
7.2
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 21
8.2
Strength to Weight: Bending, points 19
10
Thermal Diffusivity, mm2/s 17
22
Thermal Shock Resistance, points 22
9.0

Alloy Composition

Aluminum (Al), % 8.5 to 10.5
0 to 0.0050
Antimony (Sb), % 0
0 to 0.020
Boron (B), % 0
0 to 0.1
Copper (Cu), % 83 to 86.5
82 to 89
Iron (Fe), % 1.5 to 3.5
0 to 0.4
Lead (Pb), % 0 to 0.1
0 to 0.090
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 1.0
0 to 0.010
Nickel (Ni), % 0 to 1.5
0.5 to 2.0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0 to 0.2
0 to 0.0050
Sulfur (S), % 0
0.1 to 0.65
Tin (Sn), % 0 to 0.2
2.0 to 4.0
Zinc (Zn), % 0 to 0.5
5.0 to 14
Zirconium (Zr), % 0
0 to 0.1
Residuals, % 0
0 to 0.7