MakeItFrom.com
Menu (ESC)

C87500 Brass vs. C87300 Bronze

Both C87500 brass and C87300 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 86% of their average alloy composition in common.

For each property being compared, the top bar is C87500 brass and the bottom bar is C87300 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 18
22
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 42
43
Tensile Strength: Ultimate (UTS), MPa 460
350
Tensile Strength: Yield (Proof), MPa 190
140

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Maximum Temperature: Mechanical, °C 170
200
Melting Completion (Liquidus), °C 920
970
Melting Onset (Solidus), °C 820
820
Specific Heat Capacity, J/kg-K 410
410
Thermal Conductivity, W/m-K 28
28
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.7
6.1
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
6.4

Otherwise Unclassified Properties

Base Metal Price, % relative 27
29
Density, g/cm3 8.3
8.6
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 44
42
Embodied Water, L/kg 300
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 67
62
Resilience: Unit (Modulus of Resilience), kJ/m3 160
86
Stiffness to Weight: Axial, points 7.4
7.5
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 16
11
Strength to Weight: Bending, points 16
13
Thermal Diffusivity, mm2/s 8.3
8.0
Thermal Shock Resistance, points 17
13

Alloy Composition

Aluminum (Al), % 0 to 0.5
0
Copper (Cu), % 79 to 85
94 to 95.7
Iron (Fe), % 0
0 to 0.2
Lead (Pb), % 0 to 0.5
0 to 0.2
Manganese (Mn), % 0
0.8 to 1.5
Silicon (Si), % 3.0 to 5.0
3.5 to 5.0
Zinc (Zn), % 12 to 16
0 to 0.25
Residuals, % 0
0 to 0.5