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C93700 Bronze vs. C68700 Brass

Both C93700 bronze and C68700 brass are copper alloys. They have 78% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C93700 bronze and the bottom bar is C68700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 99
110
Poisson's Ratio 0.35
0.32
Shear Modulus, GPa 37
41
Tensile Strength: Ultimate (UTS), MPa 240
390
Tensile Strength: Yield (Proof), MPa 130
140

Thermal Properties

Latent Heat of Fusion, J/g 170
190
Maximum Temperature: Mechanical, °C 140
160
Melting Completion (Liquidus), °C 930
970
Melting Onset (Solidus), °C 760
930
Specific Heat Capacity, J/kg-K 350
400
Thermal Conductivity, W/m-K 47
100
Thermal Expansion, µm/m-K 19
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
23
Electrical Conductivity: Equal Weight (Specific), % IACS 10
25

Otherwise Unclassified Properties

Base Metal Price, % relative 33
26
Density, g/cm3 8.9
8.3
Embodied Carbon, kg CO2/kg material 3.5
2.8
Embodied Energy, MJ/kg 57
46
Embodied Water, L/kg 390
340

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 79
90
Stiffness to Weight: Axial, points 6.2
7.3
Stiffness to Weight: Bending, points 17
19
Strength to Weight: Axial, points 7.5
13
Strength to Weight: Bending, points 9.6
14
Thermal Diffusivity, mm2/s 15
30
Thermal Shock Resistance, points 9.4
13

Alloy Composition

Aluminum (Al), % 0 to 0.0050
1.8 to 2.5
Antimony (Sb), % 0 to 0.5
0
Arsenic (As), % 0
0.020 to 0.1
Copper (Cu), % 78 to 82
76 to 79
Iron (Fe), % 0 to 0.15
0 to 0.060
Lead (Pb), % 8.0 to 11
0 to 0.070
Nickel (Ni), % 0 to 1.0
0
Phosphorus (P), % 0 to 1.5
0
Silicon (Si), % 0 to 0.0050
0
Sulfur (S), % 0 to 0.080
0
Tin (Sn), % 9.0 to 11
0
Zinc (Zn), % 0 to 0.8
17.8 to 22.2
Residuals, % 0
0 to 0.5