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C91700 Bronze vs. CC753S Brass

Both C91700 bronze and CC753S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 60% of their average alloy composition in common.

For each property being compared, the top bar is C91700 bronze and the bottom bar is CC753S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 90
100
Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 13
17
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 41
40
Tensile Strength: Ultimate (UTS), MPa 330
340
Tensile Strength: Yield (Proof), MPa 170
170

Thermal Properties

Latent Heat of Fusion, J/g 190
170
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 1020
820
Melting Onset (Solidus), °C 850
780
Specific Heat Capacity, J/kg-K 370
390
Thermal Conductivity, W/m-K 71
99
Thermal Expansion, µm/m-K 18
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
26
Electrical Conductivity: Equal Weight (Specific), % IACS 10
29

Otherwise Unclassified Properties

Base Metal Price, % relative 36
23
Density, g/cm3 8.7
8.1
Embodied Carbon, kg CO2/kg material 3.9
2.8
Embodied Energy, MJ/kg 63
47
Embodied Water, L/kg 400
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 35
47
Resilience: Unit (Modulus of Resilience), kJ/m3 140
140
Stiffness to Weight: Axial, points 6.9
7.1
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 11
12
Strength to Weight: Bending, points 12
13
Thermal Diffusivity, mm2/s 22
32
Thermal Shock Resistance, points 12
11

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0.4 to 0.8
Antimony (Sb), % 0 to 0.2
0 to 0.050
Copper (Cu), % 84.2 to 87.5
56.8 to 60.5
Iron (Fe), % 0 to 0.2
0.5 to 0.8
Lead (Pb), % 0 to 0.25
1.8 to 2.5
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 1.2 to 2.0
0.5 to 1.2
Phosphorus (P), % 0 to 0.3
0 to 0.020
Silicon (Si), % 0 to 0.0050
0 to 0.050
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 11.3 to 12.5
0 to 0.8
Zinc (Zn), % 0 to 0.25
33.1 to 40