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CC753S Brass vs. CC761S Brass

Both CC753S brass and CC761S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 74% of their average alloy composition in common.

For each property being compared, the top bar is CC753S brass and the bottom bar is CC761S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100
150
Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 17
8.7
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 40
42
Tensile Strength: Ultimate (UTS), MPa 340
540
Tensile Strength: Yield (Proof), MPa 170
340

Thermal Properties

Latent Heat of Fusion, J/g 170
260
Maximum Temperature: Mechanical, °C 120
170
Melting Completion (Liquidus), °C 820
960
Melting Onset (Solidus), °C 780
910
Specific Heat Capacity, J/kg-K 390
410
Thermal Conductivity, W/m-K 99
27
Thermal Expansion, µm/m-K 21
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
40
Electrical Conductivity: Equal Weight (Specific), % IACS 29
43

Otherwise Unclassified Properties

Base Metal Price, % relative 23
27
Density, g/cm3 8.1
8.3
Embodied Carbon, kg CO2/kg material 2.8
2.7
Embodied Energy, MJ/kg 47
45
Embodied Water, L/kg 330
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 47
41
Resilience: Unit (Modulus of Resilience), kJ/m3 140
530
Stiffness to Weight: Axial, points 7.1
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 12
18
Strength to Weight: Bending, points 13
18
Thermal Diffusivity, mm2/s 32
8.0
Thermal Shock Resistance, points 11
19

Alloy Composition

Aluminum (Al), % 0.4 to 0.8
0 to 0.1
Antimony (Sb), % 0 to 0.050
0 to 0.050
Copper (Cu), % 56.8 to 60.5
78 to 83
Iron (Fe), % 0.5 to 0.8
0 to 0.6
Lead (Pb), % 1.8 to 2.5
0 to 0.8
Manganese (Mn), % 0 to 0.2
0 to 0.2
Nickel (Ni), % 0.5 to 1.2
0 to 1.0
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 0.050
3.0 to 5.0
Tin (Sn), % 0 to 0.8
0 to 0.3
Zinc (Zn), % 33.1 to 40
8.9 to 19