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C63020 Bronze vs. C68400 Brass

Both C63020 bronze and C68400 brass are copper alloys. They have 64% of their average alloy composition in common. There are 27 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 C63020 bronze and the bottom bar is C68400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 6.8
18
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 44
41
Shear Strength, MPa 600
330
Tensile Strength: Ultimate (UTS), MPa 1020
540
Tensile Strength: Yield (Proof), MPa 740
310

Thermal Properties

Latent Heat of Fusion, J/g 230
210
Maximum Temperature: Mechanical, °C 230
130
Melting Completion (Liquidus), °C 1070
840
Melting Onset (Solidus), °C 1020
820
Specific Heat Capacity, J/kg-K 450
400
Thermal Conductivity, W/m-K 40
66
Thermal Expansion, µm/m-K 18
20

Otherwise Unclassified Properties

Base Metal Price, % relative 29
23
Density, g/cm3 8.2
7.9
Embodied Carbon, kg CO2/kg material 3.6
2.7
Embodied Energy, MJ/kg 58
47
Embodied Water, L/kg 390
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 63
81
Resilience: Unit (Modulus of Resilience), kJ/m3 2320
460
Stiffness to Weight: Axial, points 8.0
7.5
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 34
19
Strength to Weight: Bending, points 27
19
Thermal Diffusivity, mm2/s 11
21
Thermal Shock Resistance, points 35
18

Alloy Composition

Aluminum (Al), % 10 to 11
0 to 0.5
Boron (B), % 0
0.0010 to 0.030
Chromium (Cr), % 0 to 0.050
0
Cobalt (Co), % 0 to 0.2
0
Copper (Cu), % 74.7 to 81.8
59 to 64
Iron (Fe), % 4.0 to 5.5
0 to 1.0
Lead (Pb), % 0 to 0.030
0 to 0.090
Manganese (Mn), % 0 to 1.5
0.2 to 1.5
Nickel (Ni), % 4.2 to 6.0
0 to 0.5
Phosphorus (P), % 0
0.030 to 0.3
Silicon (Si), % 0
1.5 to 2.5
Tin (Sn), % 0 to 0.25
0 to 0.5
Zinc (Zn), % 0 to 0.3
28.6 to 39.3
Residuals, % 0
0 to 0.5