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C61800 Bronze vs. C68400 Brass

Both C61800 bronze and C68400 brass are copper alloys. They have 63% of their average alloy composition in common. There are 29 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 C61800 bronze and the bottom bar is C68400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 26
18
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 44
41
Shear Strength, MPa 310
330
Tensile Strength: Ultimate (UTS), MPa 740
540
Tensile Strength: Yield (Proof), MPa 310
310

Thermal Properties

Latent Heat of Fusion, J/g 230
210
Maximum Temperature: Mechanical, °C 220
130
Melting Completion (Liquidus), °C 1050
840
Melting Onset (Solidus), °C 1040
820
Specific Heat Capacity, J/kg-K 440
400
Thermal Conductivity, W/m-K 64
66
Thermal Expansion, µm/m-K 18
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
87
Electrical Conductivity: Equal Weight (Specific), % IACS 14
99

Otherwise Unclassified Properties

Base Metal Price, % relative 28
23
Density, g/cm3 8.3
7.9
Embodied Carbon, kg CO2/kg material 3.1
2.7
Embodied Energy, MJ/kg 52
47
Embodied Water, L/kg 390
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
81
Resilience: Unit (Modulus of Resilience), kJ/m3 420
460
Stiffness to Weight: Axial, points 7.5
7.5
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 25
19
Strength to Weight: Bending, points 22
19
Thermal Diffusivity, mm2/s 18
21
Thermal Shock Resistance, points 26
18

Alloy Composition

Aluminum (Al), % 8.5 to 11
0 to 0.5
Boron (B), % 0
0.0010 to 0.030
Copper (Cu), % 86.9 to 91
59 to 64
Iron (Fe), % 0.5 to 1.5
0 to 1.0
Lead (Pb), % 0 to 0.020
0 to 0.090
Manganese (Mn), % 0
0.2 to 1.5
Nickel (Ni), % 0
0 to 0.5
Phosphorus (P), % 0
0.030 to 0.3
Silicon (Si), % 0 to 0.1
1.5 to 2.5
Tin (Sn), % 0
0 to 0.5
Zinc (Zn), % 0 to 0.020
28.6 to 39.3
Residuals, % 0
0 to 0.5