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C21000 Brass vs. CC761S Brass

Both C21000 brass and CC761S brass are copper alloys. They have 85% 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 C21000 brass and the bottom bar is CC761S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 2.9 to 50
8.7
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 43
42
Tensile Strength: Ultimate (UTS), MPa 240 to 450
540
Tensile Strength: Yield (Proof), MPa 69 to 440
340

Thermal Properties

Latent Heat of Fusion, J/g 200
260
Maximum Temperature: Mechanical, °C 190
170
Melting Completion (Liquidus), °C 1070
960
Melting Onset (Solidus), °C 1050
910
Specific Heat Capacity, J/kg-K 390
410
Thermal Conductivity, W/m-K 230
27
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 56
40
Electrical Conductivity: Equal Weight (Specific), % IACS 57
43

Otherwise Unclassified Properties

Base Metal Price, % relative 30
27
Density, g/cm3 8.8
8.3
Embodied Carbon, kg CO2/kg material 2.6
2.7
Embodied Energy, MJ/kg 42
45
Embodied Water, L/kg 310
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 100
41
Resilience: Unit (Modulus of Resilience), kJ/m3 21 to 830
530
Stiffness to Weight: Axial, points 7.2
7.4
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 7.4 to 14
18
Strength to Weight: Bending, points 9.6 to 15
18
Thermal Diffusivity, mm2/s 69
8.0
Thermal Shock Resistance, points 8.1 to 15
19

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Antimony (Sb), % 0
0 to 0.050
Copper (Cu), % 94 to 96
78 to 83
Iron (Fe), % 0 to 0.050
0 to 0.6
Lead (Pb), % 0 to 0.030
0 to 0.8
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
3.0 to 5.0
Tin (Sn), % 0
0 to 0.3
Zinc (Zn), % 3.7 to 6.0
8.9 to 19
Residuals, % 0 to 0.2
0