MakeItFrom.com
Menu (ESC)

C68700 Brass vs. C63800 Bronze

Both C68700 brass and C63800 bronze are copper alloys. They have 80% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C68700 brass and the bottom bar is C63800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 41
43
Tensile Strength: Ultimate (UTS), MPa 390
460 to 1010

Thermal Properties

Latent Heat of Fusion, J/g 190
240
Maximum Temperature: Mechanical, °C 160
200
Melting Completion (Liquidus), °C 970
1030
Melting Onset (Solidus), °C 930
1000
Specific Heat Capacity, J/kg-K 400
410
Thermal Conductivity, W/m-K 100
40
Thermal Expansion, µm/m-K 19
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 23
10
Electrical Conductivity: Equal Weight (Specific), % IACS 25
10

Otherwise Unclassified Properties

Base Metal Price, % relative 26
30
Density, g/cm3 8.3
8.6
Embodied Carbon, kg CO2/kg material 2.8
2.8
Embodied Energy, MJ/kg 46
45
Embodied Water, L/kg 340
330

Common Calculations

Stiffness to Weight: Axial, points 7.3
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 13
15 to 33
Strength to Weight: Bending, points 14
15 to 26
Thermal Diffusivity, mm2/s 30
11
Thermal Shock Resistance, points 13
17 to 36

Alloy Composition

Aluminum (Al), % 1.8 to 2.5
2.5 to 3.1
Arsenic (As), % 0.020 to 0.1
0
Cobalt (Co), % 0
0.25 to 0.55
Copper (Cu), % 76 to 79
92.4 to 95.8
Iron (Fe), % 0 to 0.060
0 to 0.2
Lead (Pb), % 0 to 0.070
0 to 0.050
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 0
0 to 0.2
Silicon (Si), % 0
1.5 to 2.1
Zinc (Zn), % 17.8 to 22.2
0 to 0.8
Residuals, % 0
0 to 0.5