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C38000 Brass vs. C66100 Bronze

Both C38000 brass and C66100 bronze are copper alloys. They have 59% of their average alloy composition in common.

For each property being compared, the top bar is C38000 brass and the bottom bar is C66100 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
120
Elongation at Break, % 17
8.0 to 40
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 39
43
Shear Strength, MPa 230
280 to 460
Tensile Strength: Ultimate (UTS), MPa 380
410 to 790
Tensile Strength: Yield (Proof), MPa 120
120 to 430

Thermal Properties

Latent Heat of Fusion, J/g 170
260
Maximum Temperature: Mechanical, °C 110
200
Melting Completion (Liquidus), °C 800
1050
Melting Onset (Solidus), °C 760
1000
Specific Heat Capacity, J/kg-K 380
400
Thermal Conductivity, W/m-K 110
34
Thermal Expansion, µm/m-K 21
17

Otherwise Unclassified Properties

Base Metal Price, % relative 22
29
Density, g/cm3 8.0
8.7
Embodied Carbon, kg CO2/kg material 2.7
2.6
Embodied Energy, MJ/kg 46
42
Embodied Water, L/kg 330
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 50
53 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 74
60 to 790
Stiffness to Weight: Axial, points 7.1
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 13
13 to 25
Strength to Weight: Bending, points 14
14 to 22
Thermal Diffusivity, mm2/s 37
9.7
Thermal Shock Resistance, points 13
15 to 29

Alloy Composition

Aluminum (Al), % 0 to 0.5
0
Copper (Cu), % 55 to 60
92 to 97
Iron (Fe), % 0 to 0.35
0 to 0.25
Lead (Pb), % 1.5 to 2.5
0.2 to 0.8
Manganese (Mn), % 0
0 to 1.5
Silicon (Si), % 0
2.8 to 3.5
Tin (Sn), % 0 to 0.3
0
Zinc (Zn), % 35.9 to 43.5
0 to 1.5
Residuals, % 0
0 to 0.5