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C87900 Brass vs. C67400 Bronze

Both C87900 brass and C67400 bronze are copper alloys. They have a moderately high 93% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is C87900 brass and the bottom bar is C67400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 25
22 to 28
Poisson's Ratio 0.31
0.31
Rockwell B Hardness 70
78 to 85
Shear Modulus, GPa 41
41
Tensile Strength: Ultimate (UTS), MPa 480
480 to 610
Tensile Strength: Yield (Proof), MPa 240
250 to 370

Thermal Properties

Latent Heat of Fusion, J/g 190
190
Maximum Temperature: Mechanical, °C 130
130
Melting Completion (Liquidus), °C 930
890
Melting Onset (Solidus), °C 900
870
Specific Heat Capacity, J/kg-K 390
400
Thermal Conductivity, W/m-K 120
100
Thermal Expansion, µm/m-K 20
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
23
Electrical Conductivity: Equal Weight (Specific), % IACS 17
26

Otherwise Unclassified Properties

Base Metal Price, % relative 24
23
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 46
48
Embodied Water, L/kg 320
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 270
300 to 660
Stiffness to Weight: Axial, points 7.3
7.5
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 17
17 to 22
Strength to Weight: Bending, points 17
17 to 20
Thermal Diffusivity, mm2/s 37
32
Thermal Shock Resistance, points 16
16 to 20

Alloy Composition

Aluminum (Al), % 0 to 0.15
0.5 to 2.0
Antimony (Sb), % 0 to 0.050
0
Arsenic (As), % 0 to 0.050
0
Copper (Cu), % 63 to 69.2
57 to 60
Iron (Fe), % 0 to 0.4
0 to 0.35
Lead (Pb), % 0 to 0.25
0 to 0.5
Manganese (Mn), % 0 to 0.15
2.0 to 3.5
Nickel (Ni), % 0 to 0.5
0 to 0.25
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0.8 to 1.2
0.5 to 1.5
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 0 to 0.25
0 to 0.3
Zinc (Zn), % 30 to 36
31.1 to 40
Residuals, % 0
0 to 0.5