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CC765S Brass vs. C21000 Brass

Both CC765S brass and C21000 brass are copper alloys. They have 63% of their average alloy composition in common. There are 28 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 CC765S brass and the bottom bar is C21000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 21
2.9 to 50
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 42
43
Tensile Strength: Ultimate (UTS), MPa 540
240 to 450
Tensile Strength: Yield (Proof), MPa 220
69 to 440

Thermal Properties

Latent Heat of Fusion, J/g 180
200
Maximum Temperature: Mechanical, °C 140
190
Melting Completion (Liquidus), °C 860
1070
Melting Onset (Solidus), °C 820
1050
Specific Heat Capacity, J/kg-K 400
390
Thermal Conductivity, W/m-K 91
230
Thermal Expansion, µm/m-K 20
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
56
Electrical Conductivity: Equal Weight (Specific), % IACS 34
57

Otherwise Unclassified Properties

Base Metal Price, % relative 24
30
Density, g/cm3 8.0
8.8
Embodied Carbon, kg CO2/kg material 3.0
2.6
Embodied Energy, MJ/kg 51
42
Embodied Water, L/kg 330
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
13 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 220
21 to 830
Stiffness to Weight: Axial, points 7.6
7.2
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 19
7.4 to 14
Strength to Weight: Bending, points 18
9.6 to 15
Thermal Diffusivity, mm2/s 28
69
Thermal Shock Resistance, points 17
8.1 to 15

Alloy Composition

Aluminum (Al), % 0.5 to 2.5
0
Antimony (Sb), % 0 to 0.080
0
Copper (Cu), % 51 to 65
94 to 96
Iron (Fe), % 0.5 to 2.0
0 to 0.050
Lead (Pb), % 0 to 0.5
0 to 0.030
Manganese (Mn), % 0.3 to 3.0
0
Nickel (Ni), % 0 to 6.0
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.1
0
Tin (Sn), % 0 to 1.0
0
Zinc (Zn), % 19.8 to 47.7
3.7 to 6.0
Residuals, % 0
0 to 0.2