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C89320 Bronze vs. C68000 Brass

Both C89320 bronze and C68000 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. There are 26 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C89320 bronze and the bottom bar is C68000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 17
27
Poisson's Ratio 0.34
0.3
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 270
390
Tensile Strength: Yield (Proof), MPa 140
140

Thermal Properties

Latent Heat of Fusion, J/g 190
170
Maximum Temperature: Mechanical, °C 180
120
Melting Completion (Liquidus), °C 1050
880
Melting Onset (Solidus), °C 930
870
Specific Heat Capacity, J/kg-K 360
390
Thermal Conductivity, W/m-K 56
96
Thermal Expansion, µm/m-K 17
21

Otherwise Unclassified Properties

Base Metal Price, % relative 37
23
Density, g/cm3 8.9
8.0
Embodied Carbon, kg CO2/kg material 3.5
2.8
Embodied Energy, MJ/kg 56
48
Embodied Water, L/kg 490
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38
82
Resilience: Unit (Modulus of Resilience), kJ/m3 93
95
Stiffness to Weight: Axial, points 6.8
7.3
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 8.5
14
Strength to Weight: Bending, points 10
15
Thermal Diffusivity, mm2/s 17
31
Thermal Shock Resistance, points 10
13

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.010
Antimony (Sb), % 0 to 0.35
0
Bismuth (Bi), % 4.0 to 6.0
0
Copper (Cu), % 87 to 91
56 to 60
Iron (Fe), % 0 to 0.2
0.25 to 1.3
Lead (Pb), % 0 to 0.090
0 to 0.050
Manganese (Mn), % 0
0.010 to 0.5
Nickel (Ni), % 0 to 1.0
0.2 to 0.8
Phosphorus (P), % 0 to 0.3
0
Silicon (Si), % 0 to 0.0050
0.040 to 0.15
Sulfur (S), % 0 to 0.080
0
Tin (Sn), % 5.0 to 7.0
0.75 to 1.1
Zinc (Zn), % 0 to 1.0
35.6 to 42.8
Residuals, % 0
0 to 0.5