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CC762S Brass vs. CC751S Brass

Both CC762S brass and CC751S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 88% of their average alloy composition in common.

For each property being compared, the top bar is CC762S brass and the bottom bar is CC751S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
130
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 7.3
5.6
Poisson's Ratio 0.32
0.31
Shear Modulus, GPa 43
40
Tensile Strength: Ultimate (UTS), MPa 840
450
Tensile Strength: Yield (Proof), MPa 540
320

Thermal Properties

Latent Heat of Fusion, J/g 200
190
Maximum Temperature: Mechanical, °C 160
130
Melting Completion (Liquidus), °C 920
850
Melting Onset (Solidus), °C 870
810
Specific Heat Capacity, J/kg-K 420
390
Thermal Conductivity, W/m-K 51
110
Thermal Expansion, µm/m-K 20
20

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 24
24
Density, g/cm3 8.0
8.1
Embodied Carbon, kg CO2/kg material 3.1
2.8
Embodied Energy, MJ/kg 51
46
Embodied Water, L/kg 350
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54
23
Resilience: Unit (Modulus of Resilience), kJ/m3 1290
480
Stiffness to Weight: Axial, points 7.8
7.2
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 29
15
Strength to Weight: Bending, points 25
16
Thermal Diffusivity, mm2/s 15
35
Thermal Shock Resistance, points 27
15

Alloy Composition

Aluminum (Al), % 3.0 to 7.0
0 to 0.1
Antimony (Sb), % 0 to 0.030
0 to 0.5
Copper (Cu), % 57 to 67
62.7 to 66
Iron (Fe), % 1.5 to 4.0
0.25 to 0.5
Lead (Pb), % 0 to 0.2
0.8 to 2.2
Manganese (Mn), % 2.5 to 5.0
0 to 0.15
Nickel (Ni), % 0 to 3.0
0 to 0.8
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.1
0.65 to 1.1
Tin (Sn), % 0 to 0.2
0 to 0.8
Zinc (Zn), % 13.4 to 36
27.9 to 35.6