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CC751S Brass vs. CC762S Brass

Both CC751S brass and CC762S 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 CC751S brass and the bottom bar is CC762S brass.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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