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C34200 Brass vs. C87600 Bronze

Both C34200 brass and C87600 bronze are copper alloys. They have 69% 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 C34200 brass and the bottom bar is C87600 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 3.0 to 17
18
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 40
42
Tensile Strength: Ultimate (UTS), MPa 370 to 650
470
Tensile Strength: Yield (Proof), MPa 150 to 420
230

Thermal Properties

Latent Heat of Fusion, J/g 170
280
Maximum Temperature: Mechanical, °C 120
190
Melting Completion (Liquidus), °C 910
970
Melting Onset (Solidus), °C 890
860
Specific Heat Capacity, J/kg-K 380
410
Thermal Conductivity, W/m-K 120
28
Thermal Expansion, µm/m-K 21
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
6.0
Electrical Conductivity: Equal Weight (Specific), % IACS 29
6.4

Otherwise Unclassified Properties

Base Metal Price, % relative 24
29
Density, g/cm3 8.2
8.5
Embodied Carbon, kg CO2/kg material 2.6
2.7
Embodied Energy, MJ/kg 45
43
Embodied Water, L/kg 320
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.0 to 98
71
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 870
240
Stiffness to Weight: Axial, points 7.1
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 13 to 22
16
Strength to Weight: Bending, points 14 to 20
16
Thermal Diffusivity, mm2/s 37
8.1
Thermal Shock Resistance, points 12 to 22
17

Alloy Composition

Copper (Cu), % 62 to 65
88 to 92.5
Iron (Fe), % 0 to 0.1
0
Lead (Pb), % 1.5 to 2.5
0 to 0.5
Silicon (Si), % 0
3.5 to 5.5
Zinc (Zn), % 32 to 36.5
4.0 to 7.0
Residuals, % 0
0 to 0.5