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CC331G Bronze vs. C91700 Bronze

Both CC331G bronze and C91700 bronze 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 C91700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
90
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 20
13
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 43
41
Tensile Strength: Ultimate (UTS), MPa 620
330
Tensile Strength: Yield (Proof), MPa 240
170

Thermal Properties

Latent Heat of Fusion, J/g 230
190
Maximum Temperature: Mechanical, °C 220
170
Melting Completion (Liquidus), °C 1060
1020
Melting Onset (Solidus), °C 1000
850
Specific Heat Capacity, J/kg-K 440
370
Thermal Conductivity, W/m-K 61
71
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
10
Electrical Conductivity: Equal Weight (Specific), % IACS 14
10

Otherwise Unclassified Properties

Base Metal Price, % relative 28
36
Density, g/cm3 8.3
8.7
Embodied Carbon, kg CO2/kg material 3.2
3.9
Embodied Energy, MJ/kg 53
63
Embodied Water, L/kg 390
400

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 97
35
Resilience: Unit (Modulus of Resilience), kJ/m3 250
140
Stiffness to Weight: Axial, points 7.6
6.9
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 21
11
Strength to Weight: Bending, points 19
12
Thermal Diffusivity, mm2/s 17
22
Thermal Shock Resistance, points 22
12

Alloy Composition

Aluminum (Al), % 8.5 to 10.5
0 to 0.0050
Antimony (Sb), % 0
0 to 0.2
Copper (Cu), % 83 to 86.5
84.2 to 87.5
Iron (Fe), % 1.5 to 3.5
0 to 0.2
Lead (Pb), % 0 to 0.1
0 to 0.25
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 0 to 1.5
1.2 to 2.0
Phosphorus (P), % 0
0 to 0.3
Silicon (Si), % 0 to 0.2
0 to 0.0050
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0 to 0.2
11.3 to 12.5
Zinc (Zn), % 0 to 0.5
0 to 0.25