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C87900 Brass vs. C38500 Bronze

Both C87900 brass and C38500 bronze are copper alloys. They have a moderately high 90% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C87900 brass and the bottom bar is C38500 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 25
17
Poisson's Ratio 0.31
0.31
Shear Modulus, GPa 41
37
Tensile Strength: Ultimate (UTS), MPa 480
370
Tensile Strength: Yield (Proof), MPa 240
130

Thermal Properties

Latent Heat of Fusion, J/g 190
160
Maximum Temperature: Mechanical, °C 130
110
Melting Completion (Liquidus), °C 930
890
Melting Onset (Solidus), °C 900
880
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 120
120
Thermal Expansion, µm/m-K 20
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
28
Electrical Conductivity: Equal Weight (Specific), % IACS 17
31

Otherwise Unclassified Properties

Base Metal Price, % relative 24
22
Density, g/cm3 8.1
8.1
Embodied Carbon, kg CO2/kg material 2.7
2.6
Embodied Energy, MJ/kg 46
45
Embodied Water, L/kg 320
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
48
Resilience: Unit (Modulus of Resilience), kJ/m3 270
78
Stiffness to Weight: Axial, points 7.3
7.0
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 17
13
Strength to Weight: Bending, points 17
14
Thermal Diffusivity, mm2/s 37
40
Thermal Shock Resistance, points 16
12

Alloy Composition

Aluminum (Al), % 0 to 0.15
0
Antimony (Sb), % 0 to 0.050
0
Arsenic (As), % 0 to 0.050
0
Copper (Cu), % 63 to 69.2
55 to 59
Iron (Fe), % 0 to 0.4
0 to 0.35
Lead (Pb), % 0 to 0.25
2.5 to 3.5
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.5
0
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0.8 to 1.2
0
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 0 to 0.25
0
Zinc (Zn), % 30 to 36
36.7 to 42.5
Residuals, % 0
0 to 0.5