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CC764S Brass vs. C68000 Brass

Both CC764S brass and C68000 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a very high 95% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is CC764S brass and the bottom bar is C68000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 15
27
Poisson's Ratio 0.31
0.3
Shear Modulus, GPa 41
40
Tensile Strength: Ultimate (UTS), MPa 680
390
Tensile Strength: Yield (Proof), MPa 290
140

Thermal Properties

Latent Heat of Fusion, J/g 180
170
Maximum Temperature: Mechanical, °C 130
120
Melting Completion (Liquidus), °C 850
880
Melting Onset (Solidus), °C 810
870
Specific Heat Capacity, J/kg-K 400
390
Thermal Conductivity, W/m-K 94
96
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 2.9
2.8
Embodied Energy, MJ/kg 49
48
Embodied Water, L/kg 330
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
82
Resilience: Unit (Modulus of Resilience), kJ/m3 390
95
Stiffness to Weight: Axial, points 7.6
7.3
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 24
14
Strength to Weight: Bending, points 22
15
Thermal Diffusivity, mm2/s 30
31
Thermal Shock Resistance, points 22
13

Alloy Composition

Aluminum (Al), % 1.0 to 3.0
0 to 0.010
Antimony (Sb), % 0 to 0.050
0
Copper (Cu), % 52 to 66
56 to 60
Iron (Fe), % 0.5 to 2.5
0.25 to 1.3
Lead (Pb), % 0 to 0.3
0 to 0.050
Manganese (Mn), % 0.3 to 4.0
0.010 to 0.5
Nickel (Ni), % 0 to 3.0
0.2 to 0.8
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.1
0.040 to 0.15
Tin (Sn), % 0 to 0.3
0.75 to 1.1
Zinc (Zn), % 20.7 to 50.2
35.6 to 42.8
Residuals, % 0
0 to 0.5