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C61800 Bronze vs. C87900 Brass

Both C61800 bronze and C87900 brass are copper alloys. They have 66% of their average alloy composition in common. There are 29 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 C61800 bronze and the bottom bar is C87900 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 26
25
Poisson's Ratio 0.34
0.31
Rockwell B Hardness 89
70
Shear Modulus, GPa 44
41
Tensile Strength: Ultimate (UTS), MPa 740
480
Tensile Strength: Yield (Proof), MPa 310
240

Thermal Properties

Latent Heat of Fusion, J/g 230
190
Maximum Temperature: Mechanical, °C 220
130
Melting Completion (Liquidus), °C 1050
930
Melting Onset (Solidus), °C 1040
900
Specific Heat Capacity, J/kg-K 440
390
Thermal Conductivity, W/m-K 64
120
Thermal Expansion, µm/m-K 18
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
15
Electrical Conductivity: Equal Weight (Specific), % IACS 14
17

Otherwise Unclassified Properties

Base Metal Price, % relative 28
24
Density, g/cm3 8.3
8.1
Embodied Carbon, kg CO2/kg material 3.1
2.7
Embodied Energy, MJ/kg 52
46
Embodied Water, L/kg 390
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
100
Resilience: Unit (Modulus of Resilience), kJ/m3 420
270
Stiffness to Weight: Axial, points 7.5
7.3
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 25
17
Strength to Weight: Bending, points 22
17
Thermal Diffusivity, mm2/s 18
37
Thermal Shock Resistance, points 26
16

Alloy Composition

Aluminum (Al), % 8.5 to 11
0 to 0.15
Antimony (Sb), % 0
0 to 0.050
Arsenic (As), % 0
0 to 0.050
Copper (Cu), % 86.9 to 91
63 to 69.2
Iron (Fe), % 0.5 to 1.5
0 to 0.4
Lead (Pb), % 0 to 0.020
0 to 0.25
Manganese (Mn), % 0
0 to 0.15
Nickel (Ni), % 0
0 to 0.5
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0 to 0.1
0.8 to 1.2
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
0 to 0.25
Zinc (Zn), % 0 to 0.020
30 to 36
Residuals, % 0 to 0.5
0