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C68300 Brass vs. C87600 Bronze

Both C68300 brass and C87600 bronze are copper alloys. They have 67% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C68300 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, % 15
18
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 40
42
Tensile Strength: Ultimate (UTS), MPa 430
470
Tensile Strength: Yield (Proof), MPa 260
230

Thermal Properties

Latent Heat of Fusion, J/g 180
280
Maximum Temperature: Mechanical, °C 120
190
Melting Completion (Liquidus), °C 900
970
Melting Onset (Solidus), °C 890
860
Specific Heat Capacity, J/kg-K 390
410
Thermal Conductivity, W/m-K 120
28
Thermal Expansion, µm/m-K 20
17

Otherwise Unclassified Properties

Base Metal Price, % relative 23
29
Density, g/cm3 8.0
8.5
Embodied Carbon, kg CO2/kg material 2.8
2.7
Embodied Energy, MJ/kg 46
43
Embodied Water, L/kg 340
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 56
71
Resilience: Unit (Modulus of Resilience), kJ/m3 330
240
Stiffness to Weight: Axial, points 7.3
7.4
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 15
16
Strength to Weight: Bending, points 16
16
Thermal Diffusivity, mm2/s 38
8.1
Thermal Shock Resistance, points 14
17

Alloy Composition

Antimony (Sb), % 0.3 to 1.0
0
Cadmium (Cd), % 0 to 0.010
0
Copper (Cu), % 59 to 63
88 to 92.5
Lead (Pb), % 0 to 0.090
0 to 0.5
Silicon (Si), % 0.3 to 1.0
3.5 to 5.5
Tin (Sn), % 0.050 to 0.2
0
Zinc (Zn), % 34.2 to 40.4
4.0 to 7.0
Residuals, % 0
0 to 0.5