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C68700 Brass vs. C47000 Brass

Both C68700 brass and C47000 brass are copper alloys. They have 79% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C68700 brass and the bottom bar is C47000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Poisson's Ratio 0.32
0.3
Shear Modulus, GPa 41
40
Tensile Strength: Ultimate (UTS), MPa 390
380
Tensile Strength: Yield (Proof), MPa 140
150

Thermal Properties

Latent Heat of Fusion, J/g 190
170
Maximum Temperature: Mechanical, °C 160
120
Melting Completion (Liquidus), °C 970
900
Melting Onset (Solidus), °C 930
890
Specific Heat Capacity, J/kg-K 400
390
Thermal Conductivity, W/m-K 100
120
Thermal Expansion, µm/m-K 19
21

Otherwise Unclassified Properties

Base Metal Price, % relative 26
23
Density, g/cm3 8.3
8.0
Embodied Carbon, kg CO2/kg material 2.8
2.7
Embodied Energy, MJ/kg 46
47
Embodied Water, L/kg 340
330

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 90
100
Stiffness to Weight: Axial, points 7.3
7.2
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 13
13
Strength to Weight: Bending, points 14
15
Thermal Diffusivity, mm2/s 30
38
Thermal Shock Resistance, points 13
13

Alloy Composition


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Aluminum (Al), % 1.8 to 2.5
0 to 0.010
Arsenic (As), % 0.020 to 0.1
0
Copper (Cu), % 76 to 79
57 to 61
Iron (Fe), % 0 to 0.060
0
Lead (Pb), % 0 to 0.070
0 to 0.050
Tin (Sn), % 0
0.25 to 1.0
Zinc (Zn), % 17.8 to 22.2
37.5 to 42.8
Residuals, % 0 to 0.5
0 to 0.4