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C68400 Brass vs. C67300 Bronze

Both C68400 brass and C67300 bronze are copper alloys. They have a very high 96% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C68400 brass and the bottom bar is C67300 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 18
12
Poisson's Ratio 0.31
0.31
Shear Modulus, GPa 41
41
Shear Strength, MPa 330
300
Tensile Strength: Ultimate (UTS), MPa 540
500
Tensile Strength: Yield (Proof), MPa 310
340

Thermal Properties

Latent Heat of Fusion, J/g 210
190
Maximum Temperature: Mechanical, °C 130
130
Melting Completion (Liquidus), °C 840
870
Melting Onset (Solidus), °C 820
830
Specific Heat Capacity, J/kg-K 400
390
Thermal Conductivity, W/m-K 66
95
Thermal Expansion, µm/m-K 20
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 87
22
Electrical Conductivity: Equal Weight (Specific), % IACS 99
25

Otherwise Unclassified Properties

Base Metal Price, % relative 23
23
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 47
46
Embodied Water, L/kg 320
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81
55
Resilience: Unit (Modulus of Resilience), kJ/m3 460
550
Stiffness to Weight: Axial, points 7.5
7.4
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 19
17
Strength to Weight: Bending, points 19
17
Thermal Diffusivity, mm2/s 21
30
Thermal Shock Resistance, points 18
16

Alloy Composition


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Aluminum (Al), % 0 to 0.5
0 to 0.25
Boron (B), % 0.0010 to 0.030
0
Copper (Cu), % 59 to 64
58 to 63
Iron (Fe), % 0 to 1.0
0 to 0.5
Lead (Pb), % 0 to 0.090
0.4 to 3.0
Manganese (Mn), % 0.2 to 1.5
2.0 to 3.5
Nickel (Ni), % 0 to 0.5
0 to 0.25
Phosphorus (P), % 0.030 to 0.3
0
Silicon (Si), % 1.5 to 2.5
0.5 to 1.5
Tin (Sn), % 0 to 0.5
0 to 0.3
Zinc (Zn), % 28.6 to 39.3
27.2 to 39.1
Residuals, % 0 to 0.5
0 to 0.5