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C38000 Brass vs. C63020 Bronze

Both C38000 brass and C63020 bronze are copper alloys. They have 58% of their average alloy composition in common.

For each property being compared, the top bar is C38000 brass and the bottom bar is C63020 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
120
Elongation at Break, % 17
6.8
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 39
44
Shear Strength, MPa 230
600
Tensile Strength: Ultimate (UTS), MPa 380
1020
Tensile Strength: Yield (Proof), MPa 120
740

Thermal Properties

Latent Heat of Fusion, J/g 170
230
Maximum Temperature: Mechanical, °C 110
230
Melting Completion (Liquidus), °C 800
1070
Melting Onset (Solidus), °C 760
1020
Specific Heat Capacity, J/kg-K 380
450
Thermal Conductivity, W/m-K 110
40
Thermal Expansion, µm/m-K 21
18

Otherwise Unclassified Properties

Base Metal Price, % relative 22
29
Density, g/cm3 8.0
8.2
Embodied Carbon, kg CO2/kg material 2.7
3.6
Embodied Energy, MJ/kg 46
58
Embodied Water, L/kg 330
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 50
63
Resilience: Unit (Modulus of Resilience), kJ/m3 74
2320
Stiffness to Weight: Axial, points 7.1
8.0
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 13
34
Strength to Weight: Bending, points 14
27
Thermal Diffusivity, mm2/s 37
11
Thermal Shock Resistance, points 13
35

Alloy Composition

Aluminum (Al), % 0 to 0.5
10 to 11
Chromium (Cr), % 0
0 to 0.050
Cobalt (Co), % 0
0 to 0.2
Copper (Cu), % 55 to 60
74.7 to 81.8
Iron (Fe), % 0 to 0.35
4.0 to 5.5
Lead (Pb), % 1.5 to 2.5
0 to 0.030
Manganese (Mn), % 0
0 to 1.5
Nickel (Ni), % 0
4.2 to 6.0
Tin (Sn), % 0 to 0.3
0 to 0.25
Zinc (Zn), % 35.9 to 43.5
0 to 0.3
Residuals, % 0
0 to 0.5