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C47000 Brass vs. C87300 Bronze

Both C47000 brass and C87300 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 59% of their average alloy composition in common. There are 26 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 C47000 brass and the bottom bar is C87300 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
120
Elongation at Break, % 36
22
Poisson's Ratio 0.3
0.34
Shear Modulus, GPa 40
43
Tensile Strength: Ultimate (UTS), MPa 380
350
Tensile Strength: Yield (Proof), MPa 150
140

Thermal Properties

Latent Heat of Fusion, J/g 170
280
Maximum Temperature: Mechanical, °C 120
200
Melting Completion (Liquidus), °C 900
970
Melting Onset (Solidus), °C 890
820
Specific Heat Capacity, J/kg-K 390
410
Thermal Conductivity, W/m-K 120
28
Thermal Expansion, µm/m-K 21
17

Otherwise Unclassified Properties

Base Metal Price, % relative 23
29
Density, g/cm3 8.0
8.6
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 47
42
Embodied Water, L/kg 330
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
62
Resilience: Unit (Modulus of Resilience), kJ/m3 100
86
Stiffness to Weight: Axial, points 7.2
7.5
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 13
11
Strength to Weight: Bending, points 15
13
Thermal Diffusivity, mm2/s 38
8.0
Thermal Shock Resistance, points 13
13

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Copper (Cu), % 57 to 61
94 to 95.7
Iron (Fe), % 0
0 to 0.2
Lead (Pb), % 0 to 0.050
0 to 0.2
Manganese (Mn), % 0
0.8 to 1.5
Silicon (Si), % 0
3.5 to 5.0
Tin (Sn), % 0.25 to 1.0
0
Zinc (Zn), % 37.5 to 42.8
0 to 0.25
Residuals, % 0
0 to 0.5