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CC751S Brass vs. CC764S Brass

Both CC751S brass and CC764S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 92% of their average alloy composition in common.

For each property being compared, the top bar is CC751S brass and the bottom bar is CC764S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130
160
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 5.6
15
Poisson's Ratio 0.31
0.31
Shear Modulus, GPa 40
41
Tensile Strength: Ultimate (UTS), MPa 450
680
Tensile Strength: Yield (Proof), MPa 320
290

Thermal Properties

Latent Heat of Fusion, J/g 190
180
Maximum Temperature: Mechanical, °C 130
130
Melting Completion (Liquidus), °C 850
850
Melting Onset (Solidus), °C 810
810
Specific Heat Capacity, J/kg-K 390
400
Thermal Conductivity, W/m-K 110
94
Thermal Expansion, µm/m-K 20
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
32
Electrical Conductivity: Equal Weight (Specific), % IACS 28
36

Otherwise Unclassified Properties

Base Metal Price, % relative 24
23
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 2.8
2.9
Embodied Energy, MJ/kg 46
49
Embodied Water, L/kg 330
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23
80
Resilience: Unit (Modulus of Resilience), kJ/m3 480
390
Stiffness to Weight: Axial, points 7.2
7.6
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 15
24
Strength to Weight: Bending, points 16
22
Thermal Diffusivity, mm2/s 35
30
Thermal Shock Resistance, points 15
22

Alloy Composition

Aluminum (Al), % 0 to 0.1
1.0 to 3.0
Antimony (Sb), % 0 to 0.5
0 to 0.050
Copper (Cu), % 62.7 to 66
52 to 66
Iron (Fe), % 0.25 to 0.5
0.5 to 2.5
Lead (Pb), % 0.8 to 2.2
0 to 0.3
Manganese (Mn), % 0 to 0.15
0.3 to 4.0
Nickel (Ni), % 0 to 0.8
0 to 3.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0.65 to 1.1
0 to 0.1
Tin (Sn), % 0 to 0.8
0 to 0.3
Zinc (Zn), % 27.9 to 35.6
20.7 to 50.2