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C68300 Brass vs. C61800 Bronze

Both C68300 brass and C61800 bronze are copper alloys. They have 61% of their average alloy composition in common. There are 28 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 C68300 brass and the bottom bar is C61800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 15
26
Poisson's Ratio 0.31
0.34
Rockwell B Hardness 60
89
Shear Modulus, GPa 40
44
Shear Strength, MPa 260
310
Tensile Strength: Ultimate (UTS), MPa 430
740
Tensile Strength: Yield (Proof), MPa 260
310

Thermal Properties

Latent Heat of Fusion, J/g 180
230
Maximum Temperature: Mechanical, °C 120
220
Melting Completion (Liquidus), °C 900
1050
Melting Onset (Solidus), °C 890
1040
Specific Heat Capacity, J/kg-K 390
440
Thermal Conductivity, W/m-K 120
64
Thermal Expansion, µm/m-K 20
18

Otherwise Unclassified Properties

Base Metal Price, % relative 23
28
Density, g/cm3 8.0
8.3
Embodied Carbon, kg CO2/kg material 2.8
3.1
Embodied Energy, MJ/kg 46
52
Embodied Water, L/kg 340
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 56
150
Resilience: Unit (Modulus of Resilience), kJ/m3 330
420
Stiffness to Weight: Axial, points 7.3
7.5
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 15
25
Strength to Weight: Bending, points 16
22
Thermal Diffusivity, mm2/s 38
18
Thermal Shock Resistance, points 14
26

Alloy Composition


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Aluminum (Al), % 0
8.5 to 11
Antimony (Sb), % 0.3 to 1.0
0
Cadmium (Cd), % 0 to 0.010
0
Copper (Cu), % 59 to 63
86.9 to 91
Iron (Fe), % 0
0.5 to 1.5
Lead (Pb), % 0 to 0.090
0 to 0.020
Silicon (Si), % 0.3 to 1.0
0 to 0.1
Tin (Sn), % 0.050 to 0.2
0
Zinc (Zn), % 34.2 to 40.4
0 to 0.020
Residuals, % 0 to 0.5
0 to 0.5