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C68400 Brass vs. C47000 Brass

Both C68400 brass and C47000 brass are copper alloys. They have a moderately high 93% of their average alloy composition in common. There are 26 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 C68400 brass and the bottom bar is C47000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 18
36
Poisson's Ratio 0.31
0.3
Shear Modulus, GPa 41
40
Tensile Strength: Ultimate (UTS), MPa 540
380
Tensile Strength: Yield (Proof), MPa 310
150

Thermal Properties

Latent Heat of Fusion, J/g 210
170
Maximum Temperature: Mechanical, °C 130
120
Melting Completion (Liquidus), °C 840
900
Melting Onset (Solidus), °C 820
890
Specific Heat Capacity, J/kg-K 400
390
Thermal Conductivity, W/m-K 66
120
Thermal Expansion, µm/m-K 20
21

Otherwise Unclassified Properties

Base Metal Price, % relative 23
23
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 47
47
Embodied Water, L/kg 320
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81
110
Resilience: Unit (Modulus of Resilience), kJ/m3 460
100
Stiffness to Weight: Axial, points 7.5
7.2
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 19
13
Strength to Weight: Bending, points 19
15
Thermal Diffusivity, mm2/s 21
38
Thermal Shock Resistance, points 18
13

Alloy Composition

Aluminum (Al), % 0 to 0.5
0 to 0.010
Boron (B), % 0.0010 to 0.030
0
Copper (Cu), % 59 to 64
57 to 61
Iron (Fe), % 0 to 1.0
0
Lead (Pb), % 0 to 0.090
0 to 0.050
Manganese (Mn), % 0.2 to 1.5
0
Nickel (Ni), % 0 to 0.5
0
Phosphorus (P), % 0.030 to 0.3
0
Silicon (Si), % 1.5 to 2.5
0
Tin (Sn), % 0 to 0.5
0.25 to 1.0
Zinc (Zn), % 28.6 to 39.3
37.5 to 42.8
Residuals, % 0 to 0.5
0 to 0.4