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C93700 Bronze vs. C68000 Brass

Both C93700 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 (8, in this case) are not shown.

For each property being compared, the top bar is C93700 bronze and the bottom bar is C68000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 99
100
Elongation at Break, % 20
27
Poisson's Ratio 0.35
0.3
Shear Modulus, GPa 37
40
Tensile Strength: Ultimate (UTS), MPa 240
390
Tensile Strength: Yield (Proof), MPa 130
140

Thermal Properties

Latent Heat of Fusion, J/g 170
170
Maximum Temperature: Mechanical, °C 140
120
Melting Completion (Liquidus), °C 930
880
Melting Onset (Solidus), °C 760
870
Specific Heat Capacity, J/kg-K 350
390
Thermal Conductivity, W/m-K 47
96
Thermal Expansion, µm/m-K 19
21

Otherwise Unclassified Properties

Base Metal Price, % relative 33
23
Density, g/cm3 8.9
8.0
Embodied Carbon, kg CO2/kg material 3.5
2.8
Embodied Energy, MJ/kg 57
48
Embodied Water, L/kg 390
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40
82
Resilience: Unit (Modulus of Resilience), kJ/m3 79
95
Stiffness to Weight: Axial, points 6.2
7.3
Stiffness to Weight: Bending, points 17
20
Strength to Weight: Axial, points 7.5
14
Strength to Weight: Bending, points 9.6
15
Thermal Diffusivity, mm2/s 15
31
Thermal Shock Resistance, points 9.4
13

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.010
Antimony (Sb), % 0 to 0.5
0
Copper (Cu), % 78 to 82
56 to 60
Iron (Fe), % 0 to 0.15
0.25 to 1.3
Lead (Pb), % 8.0 to 11
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 1.5
0
Silicon (Si), % 0 to 0.0050
0.040 to 0.15
Sulfur (S), % 0 to 0.080
0
Tin (Sn), % 9.0 to 11
0.75 to 1.1
Zinc (Zn), % 0 to 0.8
35.6 to 42.8
Residuals, % 0
0 to 0.5